Categories: Malware

Symmi.59912 (file analysis)

The Symmi.59912 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 Symmi.59912 virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Attempts to connect to a dead IP:Port (8 unique times)
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • Performs some HTTP requests
  • Looks up the external IP address
  • Uses Windows utilities for basic functionality
  • Attempts to remove evidence of file being downloaded from the Internet
  • Attempts to delete volume shadow copies
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Writes a potential ransom message to disk
  • Creates a copy of itself
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

Related domains:

myexternalip.com
ocsp.pki.goog
selfesteemprofessional.com
thesuperstinger.com
ronileemusic.com
cawstonprints.com
toptenstrollers.com
crl.pki.goog
crls.pki.goog
apps.identrust.com
crl.identrust.com
x1.c.lencr.org
tootprating.org
r3.o.lencr.org
ocsp.digicert.com

How to determine Symmi.59912?


File Info:

crc32: 5AD7AF8Fmd5: 4cdc9510ddaac27747fc08cb52783d92name: 4CDC9510DDAAC27747FC08CB52783D92.mlwsha1: 83615429e192e7761d411f04b1d4c759971ae19dsha256: b3721b9efe4867f25698e86278595076ec681703e638a40e7f0bd9e276b123fbsha512: daa9b18760c53a9038789df97b5e8b306d911e1b79e5efdc8d8bab0b44ea4adf6e0d066593fa807ba02cb0ce804fd8a043de9ad9fcc230d3f4865604a3dca0fassdeep: 6144:kdRoLBgq5YN9Dy9s2//VgZEcKIfN9GXDk5VSH:6qWN9kL/ydKIf2k5QHtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Dropbox, Inc.FileVersion: 2.10.41CompanyName: Dropbox, Inc.ProductName: DropboxProductVersion: 2.10.41FileDescription: DropboxOriginalFilename: Dropbox.exeTranslation: 0x0409 0x04b0

Symmi.59912 also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004da5211 )
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
DrWeb Trojan.Inject1.56622
Cynet Malicious (score: 100)
CAT-QuickHeal Ransomware.Crowti.A4
ALYac Gen:Variant.Symmi.59912
Cylance Unsafe
Zillya Adware.Solimba.Win32.3108
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 004da5211 )
Cybereason malicious.0ddaac
Cyren W32/Agent.XL.gen!Eldorado
Symantec Packed.Generic.521
ESET-NOD32 a variant of Win32/Kryptik.EJHH
APEX Malicious
Avast Win32:TeslaCrypt-F [Trj]
ClamAV Win.Dropper.TeslaCrypt-9816514-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Symmi.59912
NANO-Antivirus Trojan.Win32.Inject1.eaetcy
MicroWorld-eScan Gen:Variant.Symmi.59912
Tencent Malware.Win32.Gencirc.114c44ff
Ad-Aware Gen:Variant.Symmi.59912
Sophos ML/PE-A + W32/Dorkbot-LD
Comodo Malware@#2hputrvenvd
BitDefenderTheta Gen:NN.ZexaF.34790.tq0@a0ILimh
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Ransom-Tescrypt!4CDC9510DDAA
FireEye Generic.mg.4cdc9510ddaac277
Emsisoft Gen:Variant.Symmi.59912 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.ebopy
Webroot W32.Rogue.Gen
Avira TR/Crypt.XPACK.Gen8
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.163B5E3
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Tescrypt!rfn
Arcabit Trojan.Symmi.DEA08
SUPERAntiSpyware Trojan.Agent/Gen-Ransom
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Symmi.59912
AhnLab-V3 Trojan/Win32.Teslacrypt.C1315402
McAfee Ransom-Tescrypt!4CDC9510DDAA
MAX malware (ai score=89)
VBA32 BScope.Trojan.Inject
Malwarebytes Trojan.Dropper
Panda Trj/CI.A
Rising Trojan.Generic@ML.96 (RDML:janrl/rROC5QB12n3Xqscw)
Yandex Trojan.GenAsa!miqwymo/PDg
Fortinet W32/Kryptik.EKDN!tr
AVG Win32:TeslaCrypt-F [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Bitman.HykCEpsA

How to remove Symmi.59912?

  • 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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