Overview

overview

10

Static

static

8

21a8347b_b...is.msi

windows7_x64

10

21a8347b_b...is.msi

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    20/05/2021, 14:19

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General

  • Target
    21a8347b_by_Libranalysis.msi
  • Size 256KB
  • Sample210520-p1l2ca2c8n
  • SHA256 9d090a84e1769af41a7724bfbc082e60f50a8a10cf88378a4c3ca24420aade71
  • MD5 SHA1 SHA512
Score
10/10
formbookratspywarestealertrojan

Malware Config

Extracted

Family

  • formbook

Version

  • 4.1

C2

  • http://www.craftsman-vail.com/cca/

Decoy

  • whenpigsflyhigh.com

  • artistiklounge.com

  • tinytrendstique.com

  • projektpartner-ag.com

  • charvelevh.com

  • easycompliances.net

  • zengheqiye.com

  • professionalmallorca.com

  • bonzerstudio.com

  • nelivo.com

  • yangxeric.com

  • aredntech.com

  • twincitieshousingmarket.com

  • allshadesunscreen.com

  • xiang-life.net

  • qmcp00011.com

  • lindsayeandmarkv.com

  • fbcsbvsbvsjbvjs.com

  • saveonthrivelife.com

  • newdpo.com

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 3 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 52 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\21a8347b_by_Libranalysis.msi
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:488
    • C:\Windows\SysWOW64\wlanext.exe
      "C:\Windows\SysWOW64\wlanext.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4028
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Installer\MSIE6CE.tmp"
        3⤵
          PID:1808
    • 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:3684
      • C:\Windows\system32\srtasks.exe
        C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:576
      • C:\Windows\Installer\MSIE6CE.tmp
        "C:\Windows\Installer\MSIE6CE.tmp"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:848
        • C:\Windows\Installer\MSIE6CE.tmp
          "C:\Windows\Installer\MSIE6CE.tmp"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:2296
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:644
    • \??\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:2052

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/848-126-0x0000000002340000-0x0000000002342000-memory.dmp
          Download

          memory/2296-128-0x0000000000400000-0x000000000042E000-memory.dmp
          Download

          memory/2296-129-0x00000000009E0000-0x00000000009F4000-memory.dmp
          Download

          memory/2296-127-0x0000000000A20000-0x0000000000D40000-memory.dmp
          Download

          memory/3020-130-0x0000000006C40000-0x0000000006D88000-memory.dmp
          Download

          memory/3020-139-0x0000000006E60000-0x0000000006FB6000-memory.dmp
          Download

          memory/4028-134-0x0000000003060000-0x000000000308E000-memory.dmp
          Download

          memory/4028-135-0x0000000003570000-0x0000000003890000-memory.dmp
          Download

          memory/4028-133-0x0000000000A00000-0x0000000000A17000-memory.dmp
          Download

          memory/4028-138-0x0000000003350000-0x00000000033E3000-memory.dmp
          Download