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Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/03/2023, 11:36

General

  • Target

    vbc.exe

  • Size

    812KB

  • MD5

    4f57c474b77a208ee4d212894b3512d2

  • SHA1

    41d369bc50e40fc80054e215d3b2ff44be10c08e

  • SHA256

    abbc3fed4f82fe9afe22de485ec621e13bb0890d633e9c57ba5ebb2fe66b7159

  • SHA512

    0d7efaba27a0564ed224edc0fba642e93676d3c2c561a58887ca925870bc09eb1dda9b9617428247761386aff630ad052a832f698b054d434b82456e80707d25

  • SSDEEP

    24576:0EXVZ9a++LeZLGjl66eaCku6e4XCi/EJq9:330LDJUaCG1wJq

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

g2fg

Decoy

snowcrash.website

pointman.us

newheartvalve.care

drandl.com

sandspringsramblers.com

programagubernamental.online

boja.us

mvrsnike.com

mentallyillmotherhood.com

facom.us

programagubernamental.store

izivente.com

roller-v.fr

amazonbioactives.com

metaverseapple.xyz

5gt-mobilevsverizon.com

gtwebsolutions.co

scottdunn.life

usdp.trade

pikmin.run

Signatures

  • Formbook

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

  • Formbook payload 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3188
    • C:\Users\Admin\AppData\Local\Temp\vbc.exe
      "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:3132
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\afVxDcSOLVQXKW.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5044
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\afVxDcSOLVQXKW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E55.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:64
      • C:\Users\Admin\AppData\Local\Temp\vbc.exe
        "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:3984
    • C:\Windows\SysWOW64\cmstp.exe
      "C:\Windows\SysWOW64\cmstp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4484
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
        3⤵
          PID:3532

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_q30pxj4o.erj.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp1E55.tmp

      Filesize

      1KB

      MD5

      d4d9a2d2770731633c487081a6aa4944

      SHA1

      9b6a1735ae35db6766f430e881caf58448dbf9cc

      SHA256

      464ed1e0c34e06ea6c5dedbfa33ef93cec79d9ac4cd5937953ca9e78ebbe31b7

      SHA512

      f174d9e2718dc2baa9a1b1f483a073ab0903d21f4ba45c121d34b03f17d3327dcc91df6da40c53c7d60cd94737eb0f01de7b503d97f0041445582e74ad546b6d

    • memory/3132-134-0x0000000006110000-0x00000000066B4000-memory.dmp

      Filesize

      5.6MB

    • memory/3132-135-0x0000000005980000-0x0000000005A12000-memory.dmp

      Filesize

      584KB

    • memory/3132-136-0x0000000005B00000-0x0000000005B10000-memory.dmp

      Filesize

      64KB

    • memory/3132-137-0x0000000003420000-0x000000000342A000-memory.dmp

      Filesize

      40KB

    • memory/3132-138-0x0000000005B00000-0x0000000005B10000-memory.dmp

      Filesize

      64KB

    • memory/3132-139-0x0000000007F00000-0x0000000007F9C000-memory.dmp

      Filesize

      624KB

    • memory/3132-133-0x0000000000ED0000-0x0000000000FA0000-memory.dmp

      Filesize

      832KB

    • memory/3188-200-0x0000000009160000-0x00000000092DA000-memory.dmp

      Filesize

      1.5MB

    • memory/3188-199-0x0000000009160000-0x00000000092DA000-memory.dmp

      Filesize

      1.5MB

    • memory/3188-167-0x0000000008A60000-0x0000000008BE1000-memory.dmp

      Filesize

      1.5MB

    • memory/3984-146-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/3984-185-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/3984-165-0x0000000001180000-0x00000000014CA000-memory.dmp

      Filesize

      3.3MB

    • memory/3984-166-0x0000000000CC0000-0x0000000000CD4000-memory.dmp

      Filesize

      80KB

    • memory/4484-198-0x0000000002F40000-0x0000000002FD3000-memory.dmp

      Filesize

      588KB

    • memory/4484-196-0x0000000000F40000-0x0000000000F6F000-memory.dmp

      Filesize

      188KB

    • memory/4484-190-0x00000000030D0000-0x000000000341A000-memory.dmp

      Filesize

      3.3MB

    • memory/4484-189-0x0000000000F40000-0x0000000000F6F000-memory.dmp

      Filesize

      188KB

    • memory/4484-184-0x00000000002F0000-0x0000000000306000-memory.dmp

      Filesize

      88KB

    • memory/4484-186-0x00000000002F0000-0x0000000000306000-memory.dmp

      Filesize

      88KB

    • memory/5044-149-0x0000000005650000-0x0000000005672000-memory.dmp

      Filesize

      136KB

    • memory/5044-151-0x0000000005EC0000-0x0000000005F26000-memory.dmp

      Filesize

      408KB

    • memory/5044-180-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

      Filesize

      120KB

    • memory/5044-181-0x0000000007E60000-0x00000000084DA000-memory.dmp

      Filesize

      6.5MB

    • memory/5044-183-0x0000000007810000-0x000000000782A000-memory.dmp

      Filesize

      104KB

    • memory/5044-182-0x000000007F050000-0x000000007F060000-memory.dmp

      Filesize

      64KB

    • memory/5044-169-0x0000000006AE0000-0x0000000006B12000-memory.dmp

      Filesize

      200KB

    • memory/5044-168-0x0000000005100000-0x0000000005110000-memory.dmp

      Filesize

      64KB

    • memory/5044-187-0x0000000007880000-0x000000000788A000-memory.dmp

      Filesize

      40KB

    • memory/5044-170-0x0000000070D60000-0x0000000070DAC000-memory.dmp

      Filesize

      304KB

    • memory/5044-188-0x0000000007A90000-0x0000000007B26000-memory.dmp

      Filesize

      600KB

    • memory/5044-164-0x0000000006510000-0x000000000652E000-memory.dmp

      Filesize

      120KB

    • memory/5044-158-0x0000000005100000-0x0000000005110000-memory.dmp

      Filesize

      64KB

    • memory/5044-191-0x0000000007A40000-0x0000000007A4E000-memory.dmp

      Filesize

      56KB

    • memory/5044-192-0x0000000007B50000-0x0000000007B6A000-memory.dmp

      Filesize

      104KB

    • memory/5044-193-0x0000000007B30000-0x0000000007B38000-memory.dmp

      Filesize

      32KB

    • memory/5044-152-0x0000000005100000-0x0000000005110000-memory.dmp

      Filesize

      64KB

    • memory/5044-150-0x0000000005DE0000-0x0000000005E46000-memory.dmp

      Filesize

      408KB

    • memory/5044-147-0x0000000005740000-0x0000000005D68000-memory.dmp

      Filesize

      6.2MB

    • memory/5044-144-0x0000000004F70000-0x0000000004FA6000-memory.dmp

      Filesize

      216KB