Analysis

  • max time kernel
    141s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2024 05:15

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.

  • 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:2512
    • 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:5060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3128.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4436
    • C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2724
  • 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 --mojo-platform-channel-handle=4352 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1124

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4v1r1hz4.fin.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp3128.tmp

      Filesize

      1KB

      MD5

      164bb7ffa99fe3f2e12b573611cd652f

      SHA1

      5b667b205cfd99ef69c0eeb0739b5a35b9ac5c4c

      SHA256

      6f40a9fb3da28c2bc36d722cfd827470d6080525f3d277e58cbf2fcf2ec52357

      SHA512

      35be4c0fd35032a8ae4dad2bad519712862856a1ca6f5ffbad4c3e44eaae3f2d0734d98c07bd1670e04dbdfa93c0976574badd1e4e8b562855c36a491881ff8b

    • memory/2512-8-0x0000000005350000-0x000000000536E000-memory.dmp

      Filesize

      120KB

    • memory/2512-9-0x0000000007C70000-0x0000000007C80000-memory.dmp

      Filesize

      64KB

    • memory/2512-4-0x00000000077F0000-0x0000000007882000-memory.dmp

      Filesize

      584KB

    • memory/2512-5-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2512-6-0x0000000007C40000-0x0000000007C4A000-memory.dmp

      Filesize

      40KB

    • memory/2512-7-0x0000000008370000-0x000000000840C000-memory.dmp

      Filesize

      624KB

    • memory/2512-2-0x000000007451E000-0x000000007451F000-memory.dmp

      Filesize

      4KB

    • memory/2512-3-0x0000000007CB0000-0x0000000008254000-memory.dmp

      Filesize

      5.6MB

    • memory/2512-10-0x0000000007CA0000-0x0000000007CB6000-memory.dmp

      Filesize

      88KB

    • memory/2512-11-0x00000000097D0000-0x0000000009846000-memory.dmp

      Filesize

      472KB

    • memory/2512-12-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2512-26-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/2512-1-0x0000000000890000-0x000000000094A000-memory.dmp

      Filesize

      744KB

    • memory/2512-0-0x000000007451E000-0x000000007451F000-memory.dmp

      Filesize

      4KB

    • memory/2724-34-0x0000000000FE0000-0x000000000132A000-memory.dmp

      Filesize

      3.3MB

    • memory/2724-23-0x0000000000400000-0x000000000042F000-memory.dmp

      Filesize

      188KB

    • memory/5060-27-0x00000000061D0000-0x0000000006236000-memory.dmp

      Filesize

      408KB

    • memory/5060-44-0x0000000070A00000-0x0000000070A4C000-memory.dmp

      Filesize

      304KB

    • memory/5060-25-0x00000000058F0000-0x0000000005912000-memory.dmp

      Filesize

      136KB

    • memory/5060-20-0x0000000005AF0000-0x0000000006118000-memory.dmp

      Filesize

      6.2MB

    • memory/5060-19-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/5060-28-0x0000000006240000-0x00000000062A6000-memory.dmp

      Filesize

      408KB

    • memory/5060-18-0x0000000002FD0000-0x0000000003006000-memory.dmp

      Filesize

      216KB

    • memory/5060-17-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/5060-39-0x00000000062B0000-0x0000000006604000-memory.dmp

      Filesize

      3.3MB

    • memory/5060-40-0x0000000005640000-0x000000000565E000-memory.dmp

      Filesize

      120KB

    • memory/5060-41-0x0000000006990000-0x00000000069DC000-memory.dmp

      Filesize

      304KB

    • memory/5060-42-0x0000000002F60000-0x0000000002F70000-memory.dmp

      Filesize

      64KB

    • memory/5060-43-0x0000000007870000-0x00000000078A2000-memory.dmp

      Filesize

      200KB

    • memory/5060-21-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/5060-54-0x0000000007850000-0x000000000786E000-memory.dmp

      Filesize

      120KB

    • memory/5060-55-0x00000000078C0000-0x0000000007963000-memory.dmp

      Filesize

      652KB

    • memory/5060-56-0x0000000008230000-0x00000000088AA000-memory.dmp

      Filesize

      6.5MB

    • memory/5060-57-0x0000000007BF0000-0x0000000007C0A000-memory.dmp

      Filesize

      104KB

    • memory/5060-58-0x0000000007C60000-0x0000000007C6A000-memory.dmp

      Filesize

      40KB

    • memory/5060-59-0x0000000007E70000-0x0000000007F06000-memory.dmp

      Filesize

      600KB

    • memory/5060-60-0x0000000007DF0000-0x0000000007E01000-memory.dmp

      Filesize

      68KB

    • memory/5060-61-0x0000000007E40000-0x0000000007E4E000-memory.dmp

      Filesize

      56KB

    • memory/5060-62-0x0000000007E50000-0x0000000007E64000-memory.dmp

      Filesize

      80KB

    • memory/5060-63-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB

    • memory/5060-64-0x0000000007F50000-0x0000000007F6A000-memory.dmp

      Filesize

      104KB

    • memory/5060-65-0x0000000007F30000-0x0000000007F38000-memory.dmp

      Filesize

      32KB

    • memory/5060-68-0x0000000074510000-0x0000000074CC0000-memory.dmp

      Filesize

      7.7MB