Overview

overview

10

Static

static

8

2220944d99...25.msi

windows7_x64

10

2220944d99...25.msi

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    25/06/2021, 08:36

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General

  • Target
    2220944d9985a6843374f41b835a9825.msi
  • Size 272KB
  • Sample210625-3e55lmsdge
  • SHA256 3d5d3eb3853ff82697da75cf6da041f61f72e06d686010a02d52ebaa63ddca65
  • MD5 SHA1 SHA512
Score
10/10
formbookratspywarestealertrojan

Malware Config

Extracted

Family

  • formbook

Version

  • 4.1

C2

  • http://www.withrachlv.com/thl4/

Decoy

  • 281155oo.com

  • ykszyx.com

  • carhiredurban.com

  • aualiaison.com

  • papuapod.com

  • indianapolisheatingair.com

  • astoriakrd.online

  • tiffanyandzach.com

  • thenextstepos.com

  • greenleaveshotels.com

  • opatijatourism.com

  • greenberg.realestate

  • coastallasercharleston.com

  • maximgroupbd.com

  • one1.agency

  • gzlckz.com

  • brittanyreevesmusic.com

  • login.bid

  • juliettebrederode.com

  • stranded.xyz

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

    trojanspywarestealerformbook
  • Formbook Payload 2 IoCs
    rat
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • NSIS installer 6 IoCs
    installer
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 58 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\2220944d9985a6843374f41b835a9825.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4060
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2460
    • C:\Windows\SysWOW64\colorcpl.exe
      "C:\Windows\SysWOW64\colorcpl.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4012
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Installer\MSI5655.tmp"
        3⤵
          PID:1488
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1668
      • C:\Windows\system32\srtasks.exe
        C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1268
      • C:\Windows\Installer\MSI5655.tmp
        "C:\Windows\Installer\MSI5655.tmp"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:508
        • C:\Windows\Installer\MSI5655.tmp
          "C:\Windows\Installer\MSI5655.tmp"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:3844
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3948
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s DsmSvc
      1⤵
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:2728

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/2460-133-0x00000000064E0000-0x000000000665A000-memory.dmp
          Download

          memory/2460-131-0x0000000005F50000-0x00000000060E1000-memory.dmp
          Download

          memory/2460-140-0x00000000026D0000-0x0000000002789000-memory.dmp
          Download

          memory/3844-130-0x00000000004A0000-0x000000000054E000-memory.dmp
          Download

          memory/3844-129-0x0000000000A50000-0x0000000000D70000-memory.dmp
          Download

          memory/3844-132-0x0000000000A30000-0x0000000000A44000-memory.dmp
          Download

          memory/3844-128-0x0000000000400000-0x000000000042E000-memory.dmp
          Download

          memory/4012-137-0x0000000003270000-0x000000000329E000-memory.dmp
          Download

          memory/4012-138-0x0000000004F00000-0x0000000005220000-memory.dmp
          Download

          memory/4012-136-0x0000000000B90000-0x0000000000BA9000-memory.dmp
          Download

          memory/4012-139-0x0000000004C70000-0x0000000004D03000-memory.dmp
          Download