Analysis

  • max time kernel
    147s
  • max time network
    154s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-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.

  • 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⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:872
    • 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:2876
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E38.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4224
    • C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:3580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s1zgo3qr.cxn.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp7E38.tmp

    Filesize

    1KB

    MD5

    1ef22084011ea21e78e34dd5274a8d94

    SHA1

    f95abab05bc3d41b71a6481e42a2c0ee67729bce

    SHA256

    bc4b1955915a16bf8c59f5be6133ffa5366af8ba0c9b6b5f5cbdd7a65489a9cf

    SHA512

    23083a9f4bab01bde45daff1105a883c8c7e6a225b993973f03fc9b40b21e4df7179ea3d8d7d453dccee4cac6d76a999a6af8805c856b6d4680303b084866b8a

  • memory/872-6-0x0000000074580000-0x0000000074D31000-memory.dmp

    Filesize

    7.7MB

  • memory/872-3-0x0000000007CD0000-0x0000000007D62000-memory.dmp

    Filesize

    584KB

  • memory/872-4-0x00000000052A0000-0x00000000052AA000-memory.dmp

    Filesize

    40KB

  • memory/872-5-0x0000000007FA0000-0x000000000803C000-memory.dmp

    Filesize

    624KB

  • memory/872-23-0x0000000074580000-0x0000000074D31000-memory.dmp

    Filesize

    7.7MB

  • memory/872-7-0x0000000008890000-0x00000000088AE000-memory.dmp

    Filesize

    120KB

  • memory/872-8-0x0000000007F90000-0x0000000007FA0000-memory.dmp

    Filesize

    64KB

  • memory/872-9-0x00000000080D0000-0x00000000080E6000-memory.dmp

    Filesize

    88KB

  • memory/872-10-0x0000000009760000-0x00000000097D6000-memory.dmp

    Filesize

    472KB

  • memory/872-2-0x00000000081E0000-0x0000000008786000-memory.dmp

    Filesize

    5.6MB

  • memory/872-1-0x0000000000C90000-0x0000000000D4A000-memory.dmp

    Filesize

    744KB

  • memory/872-0-0x000000007458E000-0x000000007458F000-memory.dmp

    Filesize

    4KB

  • memory/2876-25-0x0000000005070000-0x0000000005092000-memory.dmp

    Filesize

    136KB

  • memory/2876-41-0x0000000070F40000-0x0000000070F8C000-memory.dmp

    Filesize

    304KB

  • memory/2876-64-0x0000000074580000-0x0000000074D31000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-21-0x0000000074580000-0x0000000074D31000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-18-0x0000000074580000-0x0000000074D31000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-61-0x00000000075A0000-0x00000000075A8000-memory.dmp

    Filesize

    32KB

  • memory/2876-17-0x00000000052E0000-0x000000000590A000-memory.dmp

    Filesize

    6.2MB

  • memory/2876-26-0x0000000005110000-0x0000000005176000-memory.dmp

    Filesize

    408KB

  • memory/2876-27-0x0000000005180000-0x00000000051E6000-memory.dmp

    Filesize

    408KB

  • memory/2876-28-0x0000000005910000-0x0000000005C67000-memory.dmp

    Filesize

    3.3MB

  • memory/2876-15-0x0000000002710000-0x0000000002746000-memory.dmp

    Filesize

    216KB

  • memory/2876-37-0x0000000005E20000-0x0000000005E3E000-memory.dmp

    Filesize

    120KB

  • memory/2876-38-0x0000000006170000-0x00000000061BC000-memory.dmp

    Filesize

    304KB

  • memory/2876-39-0x000000007FA80000-0x000000007FA90000-memory.dmp

    Filesize

    64KB

  • memory/2876-40-0x0000000006EC0000-0x0000000006EF4000-memory.dmp

    Filesize

    208KB

  • memory/2876-19-0x0000000074580000-0x0000000074D31000-memory.dmp

    Filesize

    7.7MB

  • memory/2876-47-0x0000000004CA0000-0x0000000004CB0000-memory.dmp

    Filesize

    64KB

  • memory/2876-51-0x00000000064E0000-0x00000000064FE000-memory.dmp

    Filesize

    120KB

  • memory/2876-52-0x0000000006F00000-0x0000000006FA4000-memory.dmp

    Filesize

    656KB

  • memory/2876-53-0x00000000078A0000-0x0000000007F1A000-memory.dmp

    Filesize

    6.5MB

  • memory/2876-54-0x0000000007260000-0x000000000727A000-memory.dmp

    Filesize

    104KB

  • memory/2876-55-0x00000000072E0000-0x00000000072EA000-memory.dmp

    Filesize

    40KB

  • memory/2876-56-0x00000000074F0000-0x0000000007586000-memory.dmp

    Filesize

    600KB

  • memory/2876-57-0x0000000007470000-0x0000000007481000-memory.dmp

    Filesize

    68KB

  • memory/2876-58-0x00000000074A0000-0x00000000074AE000-memory.dmp

    Filesize

    56KB

  • memory/2876-59-0x00000000074B0000-0x00000000074C5000-memory.dmp

    Filesize

    84KB

  • memory/2876-60-0x00000000075B0000-0x00000000075CA000-memory.dmp

    Filesize

    104KB

  • memory/3580-24-0x00000000016F0000-0x0000000001A46000-memory.dmp

    Filesize

    3.3MB

  • memory/3580-20-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB