Categories: Malware

What is “Fragtor.43313 (B)”?

The Fragtor.43313 (B) is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Fragtor.43313 (B) virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Anomalous file deletion behavior detected (10+)
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • HTTPS urls from behavior.
  • A named pipe was used for inter-process communication
  • Enumerates running processes
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Unconventionial language used in binary resources: Urdu (India)
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Transacted Hollowing
  • Created a process from a suspicious location
  • Collects and encrypts information about the computer likely to send to C2 server
  • Installs itself for autorun at Windows startup
  • Writes a potential ransom message to disk
  • STOP ransomware registry artifacts detected
  • Creates a hidden or system file
  • Likely virus infection of existing system binary
  • CAPE detected the STOP malware family
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Creates a known STOP-Djvu ransomware decryption instruction / key file.
  • Creates a known STOP ransomware variant mutex
  • STOP ransomware command line behavior detected
  • Created network traffic indicative of malicious activity
  • Uses suspicious command line tools or Windows utilities

Related domains:

wpad.local-net
api.2ip.ua
kotob.top
pqkl.org

How to determine Fragtor.43313 (B)?


File Info:

name: 5F8E9F2146CD0EB51BEF.mlwpath: /opt/CAPEv2/storage/binaries/0ad7519aa6bcdb140ed84c10167bc8dc654567bf9f4a81dc28002a0270eb5349crc32: A2CF97D2md5: 5f8e9f2146cd0eb51bef304323004362sha1: 13e76ce7491409956e4204bb5674f1c561d40abasha256: 0ad7519aa6bcdb140ed84c10167bc8dc654567bf9f4a81dc28002a0270eb5349sha512: 74fc0fff455588133a2f754496c102f71e7337c221aec26137008efe1b371bf8b982810fb59abd49df8027f0284698298aace9630c7845da7a476331eaac74c8ssdeep: 12288:KFEZY+w9rHs0XJ9V5ocGPpCZHGo5uLYMAIwA6b9olRAWnhPICjJBYIGKGZ:KqYhZJTEc1ZMAIr6bULhPVfYXKtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T180F41221B1D2C6B2E9E757702870DB7099BB78332374784F3756222D2EB03E18E69756sha3_384: 0038dba57be0706b3440aefcbb58c1e0ed00789b9cfa4ceadcbc47dfd26525776cf329c229f678230e2073f2359df6c8ep_bytes: e8683b0000e989feffffcccccccccccctimestamp: 2021-04-25 21:05:07

Version Info:

InternalName: bomgpiaruci.iwaCopyright: Copyrighz (C) 2021, fudkatProductVersion: 13.54.37.25Translation: 0x0117 0x046a

Fragtor.43313 (B) also known as:

Lionic Trojan.Win32.Convagent.4!c
Elastic malicious (high confidence)
CAT-QuickHeal Trojan.Convagent
ALYac Trojan.Ransom.Stop
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0058aa4d1 )
BitDefender Gen:Variant.Midie.104503
K7GW Trojan ( 0058aa4d1 )
Cybereason malicious.749140
Cyren W32/Kryptik.FUG.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HNKB
APEX Malicious
Paloalto generic.ml
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Convagent.gen
Alibaba Trojan:Win32/Convagent.53dc30ed
MicroWorld-eScan Gen:Variant.Midie.104503
Avast Win32:CrypterX-gen [Trj]
Rising Trojan.Generic@ML.83 (RDML:kiHwFeFqBFTdQM1gHQv9qg)
Ad-Aware Gen:Variant.Midie.104503
Emsisoft Gen:Variant.Fragtor.43313 (B)
DrWeb Trojan.Siggen15.49602
TrendMicro TROJ_GEN.R002C0RKM21
McAfee-GW-Edition BehavesLike.Win32.Lockbit.bc
FireEye Generic.mg.5f8e9f2146cd0eb5
Sophos ML/PE-A + Troj/Krypt-BO
Ikarus Trojan-Ransom.StopCrypt
GData Win32.Trojan.PSE.1KQ74ZO
Avira TR/AD.InstaBot.xtyzq
MAX malware (ai score=82)
Arcabit Trojan.Fragtor.DA931
Microsoft Ransom:Win32/StopCrypt.PU!MTB
AhnLab-V3 Trojan/Win.MalPE.R451835
Acronis suspicious
McAfee GenericRXQU-HP!5F8E9F2146CD
VBA32 Malware-Cryptor.2LA.gen
Malwarebytes Trojan.MalPack.GS
TrendMicro-HouseCall TROJ_GEN.R002C0RKM21
Tencent Win32.Trojan.Convagent.Szmc
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.121218.susgen
Fortinet W32/Kryptik.HNKE!tr
BitDefenderTheta Gen:NN.ZexaF.34294.Sq0@ai4ZPHhO
AVG Win32:CrypterX-gen [Trj]
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)

How to remove Fragtor.43313 (B)?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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