Malware

Doina.48991 (file analysis)

Malware Removal

The Doina.48991 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Doina.48991 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • HTTPS urls from behavior.
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Unconventionial binary language: Russian
  • Unconventionial language used in binary resources: Russian
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities to create a scheduled task
  • Behavioural detection: Transacted Hollowing
  • CAPE detected the RedLine malware family
  • Attempts to identify installed AV products by installation directory
  • Attempts to modify proxy settings
  • Appears to use command line obfuscation
  • Deletes executed files from disk
  • Uses suspicious command line tools or Windows utilities
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Doina.48991?


File Info:

name: C99AB3F8FB1E7C3855E5.mlw
path: /opt/CAPEv2/storage/binaries/95b077b074076ad3514b380027927a7136e14213458ca254d992f680f863d2b9
crc32: 902EACF9
md5: c99ab3f8fb1e7c3855e50f4f04d2d9f1
sha1: 7342bfecf291e3ce203d45bd053e9df1a750add4
sha256: 95b077b074076ad3514b380027927a7136e14213458ca254d992f680f863d2b9
sha512: 9c30d92bc31f5f0e7deba3cc08ca390617d95ec5ea00db65ad26f4938705b950b05d39bb22d1a9d05a6a529434a590d809852022fb1c25480aa7b2b923ca7104
ssdeep: 12288:YMrJy90loK6HT0HWHTL/6NT+gwYZJp9hN+crwM+hj9fSnlZvOqQdoEB9qn9wtyQW:hyeW5/qTbZdNUMWj2uhow9+AyOYF
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T187151247FAE880A2D8B5433049F556D70B76FE60172487876649BC6E18B2BB4F13633B
sha3_384: 8b8212fecb21265d1a88bc4257235cf929f3e6a559594020f710e4bffcaad3c5619ca229855cf0b13671d5319aae36a5
ep_bytes: e8f0060000e9000000006a5868b87240
timestamp: 2022-05-24 22:49:06

Version Info:

CompanyName: Microsoft Corporation
FileDescription: Самоизвлечение CAB-файлов Win32
FileVersion: 11.00.17763.1 (WinBuild.160101.0800)
InternalName: Wextract
LegalCopyright: © Корпорация Майкрософт. Все права защищены.
OriginalFilename: WEXTRACT.EXE .MUI
ProductName: Internet Explorer
ProductVersion: 11.00.17763.1
Translation: 0x0419 0x04b0

Doina.48991 also known as:

Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.65331035
ClamAVWin.Packed.Disabler-9987080-0
FireEyeGeneric.mg.c99ab3f8fb1e7c38
CAT-QuickHealTrojan.MSIL
ALYacGen:Variant.Doina.48991
VIPRETrojan.GenericKD.65331035
K7AntiVirusTrojan-Downloader ( 0057994f1 )
K7GWTrojan-Downloader ( 0057994f1 )
Cybereasonmalicious.8fb1e7
CyrenW32/KillAV.KMEF-6536
SymantecML.Attribute.HighConfidence
ESET-NOD32multiple detections
APEXMalicious
CynetMalicious (score: 99)
KasperskyVHO:Trojan-PSW.Win32.Stealer.gen
NANO-AntivirusTrojan.Win32.Disabler.junsud
SUPERAntiSpywareTrojan.Agent/Gen-Downloader
AvastWin32:TrojanX-gen [Trj]
TencentTrojan-Ransom.Win32.Stop.gen
DrWebTrojan.Siggen19.32857
McAfee-GW-EditionBehavesLike.Win32.Generic.cc
Trapminemalicious.high.ml.score
SentinelOneStatic AI – Malicious SFX
AviraTR/Disabler.ocayi
Antiy-AVLTrojan/Script.Phonzy
XcitiumApplicUnwnt@#1ftfc2ja2g1dd
MicrosoftTrojan:Script/Phonzy.A!ml
GDataGeneric.Trojan.PSEB.WGPCII
GoogleDetected
McAfeeArtemis!7E93BACBBC33
Cylanceunsafe
TrendMicro-HouseCallTROJ_GEN.R002C0PBK23
RisingDownloader.Amadey!8.125AC (TFE:5:HlAGNWrdXqP)
IkarusTrojan-Downloader.Win32.Amadey
FortinetPossibleThreat
AVGWin32:TrojanX-gen [Trj]
CrowdStrikewin/malicious_confidence_70% (W)

How to remove Doina.48991?

Doina.48991 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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