Analysis

  • max time kernel
    125s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-05-2024 01:17

General

  • Target

    3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe

  • Size

    718KB

  • MD5

    f49a18388f070afc8f7a17f6053666ba

  • SHA1

    d1062e2c38badf9aac1a2c2d0bf4ea7f3e07341b

  • SHA256

    3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e

  • SHA512

    6557e22c3e5542262cb8d9ae6c1a79a17f8ce2b9666dfab3ea2df5acd8c23bda607358569b75454cb49a3d36448c08a1a671923f27c13b2473d5925842a7cd34

  • SSDEEP

    12288:Me0ReLAfP7wD6ZtqzvBzmAqdse00yzr+zdW4WgxUHPp8RGHwAOovhbuigPc20mk1:Me+537wDAtqFmAq500yuZWfK8QrQh

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ht3d

Decoy

derlon.net

46gem.vip

bridal-heart-boutique.com

porarquitectura.com

durkal.online

9916k.vip

nativegarden.net

hoodjac.com

coachwunder.com

jutuowangluo.com

frankmontagna.com

jalenx.com

yhxg.net

brasserie-bro.com

whitecoatprivilege.com

sigmadriving.com

inhkipcmacau.com

freediveexperience.com

52iwin.com

aaditt.com

Signatures

  • Formbook

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

  • Detects executables packed with SmartAssembly 1 IoCs
  • Formbook payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
    "C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zNukUlepyAI.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4892
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1596.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3524
    • C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4660
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4252,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4248 /prefetch:8
    1⤵
      PID:4688

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tzf0zqsu.vd3.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp1596.tmp

      Filesize

      1KB

      MD5

      d1280c105f30b79317be2be9881f1f52

      SHA1

      020ac800ced09d88eee3adf8bde329cb3ffe82c3

      SHA256

      5ad258a6ca0ff194dad68db87c8d48575a43f5c86f009f03f41f05a8a9c593b8

      SHA512

      6d144502a796d9e9507332a486ffafad20a7fc13b14b88911363561294b1d1ac8ef2a81a7ca9f6154d82d450cdc05c4eaf958d19606958805f0bc6c84f3d6f3c

    • memory/4660-36-0x00000000019D0000-0x0000000001D1A000-memory.dmp

      Filesize

      3.3MB

    • memory/4660-23-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/4760-8-0x0000000007FF0000-0x0000000008000000-memory.dmp

      Filesize

      64KB

    • memory/4760-5-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/4760-6-0x0000000007E50000-0x0000000007EEC000-memory.dmp

      Filesize

      624KB

    • memory/4760-7-0x0000000007C80000-0x0000000007C9E000-memory.dmp

      Filesize

      120KB

    • memory/4760-0-0x000000007535E000-0x000000007535F000-memory.dmp

      Filesize

      4KB

    • memory/4760-9-0x0000000008020000-0x0000000008036000-memory.dmp

      Filesize

      88KB

    • memory/4760-10-0x00000000095E0000-0x0000000009656000-memory.dmp

      Filesize

      472KB

    • memory/4760-4-0x0000000003100000-0x000000000310A000-memory.dmp

      Filesize

      40KB

    • memory/4760-37-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/4760-3-0x0000000007B70000-0x0000000007C02000-memory.dmp

      Filesize

      584KB

    • memory/4760-2-0x0000000008040000-0x00000000085E4000-memory.dmp

      Filesize

      5.6MB

    • memory/4760-1-0x0000000000D20000-0x0000000000DDA000-memory.dmp

      Filesize

      744KB

    • memory/4892-24-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/4892-42-0x0000000075BE0000-0x0000000075C2C000-memory.dmp

      Filesize

      304KB

    • memory/4892-20-0x00000000053A0000-0x0000000005406000-memory.dmp

      Filesize

      408KB

    • memory/4892-25-0x0000000005620000-0x0000000005974000-memory.dmp

      Filesize

      3.3MB

    • memory/4892-21-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/4892-19-0x0000000004B50000-0x0000000004B72000-memory.dmp

      Filesize

      136KB

    • memory/4892-16-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/4892-17-0x0000000004D00000-0x0000000005328000-memory.dmp

      Filesize

      6.2MB

    • memory/4892-15-0x0000000004690000-0x00000000046C6000-memory.dmp

      Filesize

      216KB

    • memory/4892-38-0x0000000005C10000-0x0000000005C2E000-memory.dmp

      Filesize

      120KB

    • memory/4892-39-0x0000000006170000-0x00000000061BC000-memory.dmp

      Filesize

      304KB

    • memory/4892-41-0x0000000006C00000-0x0000000006C32000-memory.dmp

      Filesize

      200KB

    • memory/4892-40-0x000000007F930000-0x000000007F940000-memory.dmp

      Filesize

      64KB

    • memory/4892-22-0x0000000005330000-0x0000000005396000-memory.dmp

      Filesize

      408KB

    • memory/4892-52-0x00000000061F0000-0x000000000620E000-memory.dmp

      Filesize

      120KB

    • memory/4892-53-0x00000000021A0000-0x00000000021B0000-memory.dmp

      Filesize

      64KB

    • memory/4892-54-0x0000000006C40000-0x0000000006CE3000-memory.dmp

      Filesize

      652KB

    • memory/4892-55-0x00000000075A0000-0x0000000007C1A000-memory.dmp

      Filesize

      6.5MB

    • memory/4892-56-0x0000000006F60000-0x0000000006F7A000-memory.dmp

      Filesize

      104KB

    • memory/4892-57-0x0000000006FD0000-0x0000000006FDA000-memory.dmp

      Filesize

      40KB

    • memory/4892-58-0x00000000071E0000-0x0000000007276000-memory.dmp

      Filesize

      600KB

    • memory/4892-59-0x0000000007160000-0x0000000007171000-memory.dmp

      Filesize

      68KB

    • memory/4892-60-0x0000000007190000-0x000000000719E000-memory.dmp

      Filesize

      56KB

    • memory/4892-61-0x00000000071A0000-0x00000000071B4000-memory.dmp

      Filesize

      80KB

    • memory/4892-62-0x00000000072A0000-0x00000000072BA000-memory.dmp

      Filesize

      104KB

    • memory/4892-63-0x0000000007280000-0x0000000007288000-memory.dmp

      Filesize

      32KB

    • memory/4892-66-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB