Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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 08:43

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 6 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:1876
    • 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:460
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp805B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3180
    • C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:4324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t1uvphcd.viv.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp805B.tmp

    Filesize

    1KB

    MD5

    6368038addd8c97902b3d42b58045f50

    SHA1

    46c610749558a5b539b21602f27ec6507039f68a

    SHA256

    2758f839c04ff248a4fe57cc7f0fd9c026b681214a2978d4a786774351a5e9b6

    SHA512

    18b6879abdc2fb03d24151b2748cab0dc2b0561338f68f575a22a133b3197d5dc1c25cc909da0b50d6c04c7a10749b9e1194e2644c8c7625ddf370a94c50787f

  • memory/460-55-0x0000000006E60000-0x0000000006F03000-memory.dmp

    Filesize

    652KB

  • memory/460-20-0x0000000074A50000-0x0000000075200000-memory.dmp

    Filesize

    7.7MB

  • memory/460-35-0x00000000056B0000-0x0000000005A04000-memory.dmp

    Filesize

    3.3MB

  • memory/460-67-0x0000000074A50000-0x0000000075200000-memory.dmp

    Filesize

    7.7MB

  • memory/460-64-0x00000000072B0000-0x00000000072B8000-memory.dmp

    Filesize

    32KB

  • memory/460-63-0x00000000072D0000-0x00000000072EA000-memory.dmp

    Filesize

    104KB

  • memory/460-62-0x00000000071D0000-0x00000000071E4000-memory.dmp

    Filesize

    80KB

  • memory/460-61-0x00000000071C0000-0x00000000071CE000-memory.dmp

    Filesize

    56KB

  • memory/460-60-0x0000000007190000-0x00000000071A1000-memory.dmp

    Filesize

    68KB

  • memory/460-15-0x00000000023A0000-0x00000000023D6000-memory.dmp

    Filesize

    216KB

  • memory/460-59-0x0000000007210000-0x00000000072A6000-memory.dmp

    Filesize

    600KB

  • memory/460-18-0x0000000074A50000-0x0000000075200000-memory.dmp

    Filesize

    7.7MB

  • memory/460-58-0x0000000007000000-0x000000000700A000-memory.dmp

    Filesize

    40KB

  • memory/460-53-0x0000000002390000-0x00000000023A0000-memory.dmp

    Filesize

    64KB

  • memory/460-17-0x0000000004D80000-0x00000000053A8000-memory.dmp

    Filesize

    6.2MB

  • memory/460-21-0x0000000004BB0000-0x0000000004BD2000-memory.dmp

    Filesize

    136KB

  • memory/460-23-0x0000000005540000-0x00000000055A6000-memory.dmp

    Filesize

    408KB

  • memory/460-22-0x0000000005420000-0x0000000005486000-memory.dmp

    Filesize

    408KB

  • memory/460-57-0x0000000006F90000-0x0000000006FAA000-memory.dmp

    Filesize

    104KB

  • memory/460-56-0x00000000075E0000-0x0000000007C5A000-memory.dmp

    Filesize

    6.5MB

  • memory/460-19-0x0000000074A50000-0x0000000075200000-memory.dmp

    Filesize

    7.7MB

  • memory/460-52-0x0000000002390000-0x00000000023A0000-memory.dmp

    Filesize

    64KB

  • memory/460-54-0x0000000006E30000-0x0000000006E4E000-memory.dmp

    Filesize

    120KB

  • memory/460-38-0x0000000005C60000-0x0000000005C7E000-memory.dmp

    Filesize

    120KB

  • memory/460-39-0x0000000005CE0000-0x0000000005D2C000-memory.dmp

    Filesize

    304KB

  • memory/460-40-0x000000007F3E0000-0x000000007F3F0000-memory.dmp

    Filesize

    64KB

  • memory/460-41-0x0000000006DF0000-0x0000000006E22000-memory.dmp

    Filesize

    200KB

  • memory/460-42-0x00000000752E0000-0x000000007532C000-memory.dmp

    Filesize

    304KB

  • memory/1876-9-0x0000000007230000-0x0000000007246000-memory.dmp

    Filesize

    88KB

  • memory/1876-2-0x0000000007470000-0x0000000007A14000-memory.dmp

    Filesize

    5.6MB

  • memory/1876-3-0x0000000006F60000-0x0000000006FF2000-memory.dmp

    Filesize

    584KB

  • memory/1876-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

    Filesize

    4KB

  • memory/1876-1-0x00000000000E0000-0x000000000019A000-memory.dmp

    Filesize

    744KB

  • memory/1876-5-0x0000000007240000-0x00000000072DC000-memory.dmp

    Filesize

    624KB

  • memory/1876-6-0x0000000074A50000-0x0000000075200000-memory.dmp

    Filesize

    7.7MB

  • memory/1876-4-0x0000000002330000-0x000000000233A000-memory.dmp

    Filesize

    40KB

  • memory/1876-10-0x0000000008980000-0x00000000089F6000-memory.dmp

    Filesize

    472KB

  • memory/1876-36-0x0000000074A50000-0x0000000075200000-memory.dmp

    Filesize

    7.7MB

  • memory/1876-8-0x0000000007220000-0x0000000007230000-memory.dmp

    Filesize

    64KB

  • memory/1876-7-0x0000000007080000-0x000000000709E000-memory.dmp

    Filesize

    120KB

  • memory/4324-37-0x00000000015B0000-0x00000000018FA000-memory.dmp

    Filesize

    3.3MB

  • memory/4324-24-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB