Analysis

  • max time kernel
    92s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-06-2024 12:43

General

  • Target

    9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

  • Size

    4.3MB

  • MD5

    9e3856d35e9b55d33c1c919787907044

  • SHA1

    4bcb49aceccd54aebd5a723a2cc214ad4927b282

  • SHA256

    cf85df4419807f0d65e4ea91ee1c0ada18c945750533a480b1bc57c0669ddcf1

  • SHA512

    741d24e6b32852715536df9913dfba99f88656a1374e16201a4e7c45203b75a5d2a4e5ff7d13d8cb26b0ddee197675eb55b3334648923df83bdc18bb473e452a

  • SSDEEP

    98304:aqSh5zRZwYeMMIV3PsU6Z8y6TaOphYLYSHinQpUt/YV5DyzFf:ajHYOpCm/s9y

Malware Config

Signatures

  • Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Checks system information in the registry 2 TTPs 1 IoCs

    System information is often read in order to detect sandboxing environments.

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: RenamesItself 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in Windows directory
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:552
    • C:\ProgramData\Чистилка\Чистилка.exe
      C:\ProgramData\Чистилка\Чистилка.exe /srvcreate
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1736
    • C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe" /test
      2⤵
      • Executes dropped EXE
      PID:2116
    • C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe" /restart /util
      2⤵
      • Enumerates VirtualBox registry keys
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Looks for VirtualBox Guest Additions in registry
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks system information in the registry
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:724

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Чистилка\config.dat

    Filesize

    476KB

    MD5

    fa275e82023fdbcafaae60ef04dfbc78

    SHA1

    0fcdc2f3d501b3f20fa6b5a8b53c96c27d74aab7

    SHA256

    2ca7660f386dd7a3d492c39c82c33e09dec745f1b7e43c018d155cd07393a044

    SHA512

    54dc2cf6f88263839bdbb20a22c3265c302fc6965aed43df2bb248fb11bd9df7416d87a9f893d3eb74b9184a73bbe1a432be40801d6b095f7373e198c76a03be

  • C:\ProgramData\Чистилка\settings.json

    Filesize

    637B

    MD5

    7e457a209d6893de2baab788cb3cb409

    SHA1

    eee8e1713433b66b39c93aceb5bcf4134d0882d4

    SHA256

    85d93ba151558225e1bf5a01ddb1b53b5577b4501e4664066c85b9aada895ff1

    SHA512

    59686f7bb1cb0d77784f11b72b149ba6ede513d4dde959cfda1d6798a6b1ddc232373a247477329f5bccf040fe251af3fbb8ad5b60a9df466dfaf0636bb3c369

  • C:\ProgramData\Чистилка\Чистилка.exe

    Filesize

    4.3MB

    MD5

    9e3856d35e9b55d33c1c919787907044

    SHA1

    4bcb49aceccd54aebd5a723a2cc214ad4927b282

    SHA256

    cf85df4419807f0d65e4ea91ee1c0ada18c945750533a480b1bc57c0669ddcf1

    SHA512

    741d24e6b32852715536df9913dfba99f88656a1374e16201a4e7c45203b75a5d2a4e5ff7d13d8cb26b0ddee197675eb55b3334648923df83bdc18bb473e452a

  • C:\Users\Admin\AppData\Local\Temp\9e3856d35e9b55d33c1c919787907044_JaffaCakes118.exe

    Filesize

    5.9MB

    MD5

    d7ebb78bf1f0e4a8278b2d63013b1134

    SHA1

    498b315dcba9bf4403d6748be61453d5d8991b61

    SHA256

    c5a685088c44b1fbd01f49587af753b6a0f8f793de8d3b3d7e170574fef27ba8

    SHA512

    ead20a19b5262ce34f13bae9c9d1082ce5bf740759ea82042d83600094e38de7aea87d7533fdd7660369ec5bb8549e107aff562fa477711515eb9c15c9c93312

  • C:\Users\Admin\AppData\Local\Temp\cln499D.tmp

    Filesize

    49KB

    MD5

    abee4387ab69da821ed9397cc651597d

    SHA1

    5d14f4afdbe15448bf884b528ffffab874f920a7

    SHA256

    ac1dfd38d2fa61e28211e196cd3d754f6ccfb220e8c1beba52e54825cf615e22

    SHA512

    e014294cb60b66bd259f4a6ce262fc9eca30a30e7674dae178dbac6132ba464120e5d1076ee81c1210a2f42f819d94373733172cef9fda77c9effb4eed53a904

  • C:\WINDOWS\FONTS\PNS.TTF

    Filesize

    127KB

    MD5

    df8c626474a73ab7a8b511655597c7c4

    SHA1

    5de28f387ea88553d195d1978286d43c33231969

    SHA256

    723091ba5a1b8e65164075516d69c00c71225c6dde61ffc32dd4047803ab42b5

    SHA512

    c8f7d1577cb70610c40b96c835faca6b916c4924b5061351c8a67287567556b2014efb7c73cdcc4fb6533829541cd0264b8a9e428d3c572e29c06b0d96633d59

  • memory/552-44-0x0000000000690000-0x0000000000AEE000-memory.dmp

    Filesize

    4.4MB