Malware

Razy.646940 (B) (file analysis)

Malware Removal

The Razy.646940 (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 Razy.646940 (B) virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Anomalous file deletion behavior detected (10+)
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Russian
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Deletes its original binary from disk
  • Checks for the presence of known windows from debuggers and forensic tools
  • Likely virus infection of existing system binary
  • Attempts to identify installed analysis tools by a known file location
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Razy.646940 (B)?


File Info:

name: 4FFFDCF9B94D48D40067.mlw
path: /opt/CAPEv2/storage/binaries/2dbcec1845febe5b539e08a702b1834fe2f2f850097567694cdb0dc96c726baf
crc32: F787D5EF
md5: 4fffdcf9b94d48d4006793668d2c559c
sha1: 6bf3b36860d75de56622a0486018870e691537c7
sha256: 2dbcec1845febe5b539e08a702b1834fe2f2f850097567694cdb0dc96c726baf
sha512: 48e09b6e400b20dcbcc816590e73140618f79a140631ef4091567038ad6584bc5c9bf2de7f39355b1c081c3dd93066d2641d877dfb2c910726008c224b007261
ssdeep: 6144:DnUj9dMgEPzSBJMpMMqugEBo1AkEi/0aAhl+zgNQepQ:DoDszxqugEBo1Oc0lEfCQ
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1981422266F9717A3F98C973420F747BB36533810EAC0563522E82F496C4AA745D2678F
sha3_384: 3bf995c6e65ea176a9d20e68836e57447456a92d1483265b65b593ad2128fd9c0360f63d52a57e3f00884e1d354194b4
ep_bytes: 60be001045008dbe0000fbff5783cdff
timestamp: 2008-08-05 15:27:35

Version Info:

ProductName: WinRAR
CompanyName: Alexander Roshal
FileDescription: WinRAR archiver
FileVersion: 3.80
InternalName: WinRAR
LegalCopyright: Copyright © Alexander Roshal 1993-2008
OriginalFilename: WinRAR.exe
Comments: Translation © Dmitry Yerokhin 1999-2008

Razy.646940 (B) also known as:

BkavW32.MosquitoQKK.Fam.Trojan
LionicTrojan.Win32.Generic.4!c
Elasticmalicious (high confidence)
DrWebBackDoor.IRC.Bot.750
CynetMalicious (score: 100)
FireEyeGeneric.mg.4fffdcf9b94d48d4
CAT-QuickHealWorm.SlenfBot.Gen
ALYacGen:Variant.Razy.646940
CylanceUnsafe
VIPREPacked.Win32.PWSZbot.gen (v)
SangforExploit.Win32.ShellCode.gen
K7AntiVirusTrojan ( f1000f011 )
AlibabaExploit:Win32/ShellCode.2ec50002
K7GWTrojan ( f1000f011 )
Cybereasonmalicious.9b94d4
BitDefenderThetaGen:NN.ZexaF.34212.mmLfaymfIrdc
VirITBackdoor.Win32.Bot.BCW
CyrenW32/S-301e7fab!Eldorado
SymantecDownloader.Lofog!gen4
ESET-NOD32Win32/Slenfbot.AD
TrendMicro-HouseCallBKDR_QAKBOT.SMG
ClamAVWin.Trojan.Agent-493730
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Razy.646940
NANO-AntivirusTrojan.Win32.Agent.hdgns
SUPERAntiSpywareHeur.Agent/Gen-StaticIcon
MicroWorld-eScanGen:Variant.Razy.646940
AvastWin32:DangerousSig [Trj]
TencentMalware.Win32.Gencirc.114d0423
Ad-AwareGen:Variant.Razy.646940
SophosMal/Generic-S + Mal/FakeAV-BW
ComodoMalware@#2fzg4qo97ck91
ZillyaTrojan.FakeAV.Win32.44284
TrendMicroBKDR_QAKBOT.SMG
McAfee-GW-EditionW32/Pinkslipbot.gen.ae
EmsisoftGen:Variant.Razy.646940 (B)
IkarusTrojan-Spy.Win32.Zbot
JiangminWorm/Kolab.ivr
WebrootW32.Malware.Gen
AviraTR/Crypt.ULPM.Gen
Antiy-AVLTrojan/Generic.ASMalwS.29AB154
KingsoftWin32.Troj.Generic_a.c.(kcloud)
MicrosoftWorm:Win32/Slenfbot
ViRobotWorm.Win32.A.Net-Kolab.205040[UPX]
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Variant.Razy.646940
SentinelOneStatic AI – Malicious PE
AhnLab-V3Trojan/Win32.Zbot.R4017
Acronissuspicious
McAfeeArtemis!4FFFDCF9B94D
VBA32Trojan.Zeus.EA.0999
APEXMalicious
RisingExploit.ShellCode!8.2A (CLOUD)
YandexTrojan.GenAsa!zLGfEEkWneo
MAXmalware (ai score=100)
eGambitUnsafe.AI_Score_99%
FortinetW32/Kryptik.NAS!tr
AVGWin32:DangerousSig [Trj]
PandaBck/Qbot.AO
MaxSecureTrojan.Malware.300983.susgen

How to remove Razy.646940 (B)?

Razy.646940 (B) removal tool
  • 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.

About the author

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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