Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2024, 21:40

General

  • Target

    14983f31618073d5cc0aa462a006d836_JaffaCakes118.exe

  • Size

    18.7MB

  • MD5

    14983f31618073d5cc0aa462a006d836

  • SHA1

    6b5e7f59ce78b1626ce9d0cf0a5a3101f11f5ac1

  • SHA256

    e60978fe92d8071a6735921c627e9f19467b08e1c4026d81b906c650e9f50756

  • SHA512

    76f17cc6d95f251a5c53e581aafa89b5270ff3b286129628cb1bfa1fa5600e9d994ddf89e864efd25dcc67fa78bc49d333a8667d8a7d0f408f0eff1bfdcb541f

  • SSDEEP

    196608:Ta9+6Y7SOEibgRkGBfWAzRUGBfWyr23mr23QIya9+6Y7SOEibgRkGBfWAzRUGBfo:TFgRlWAz/W8IyFgRlWAz/W8I

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 4 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • XMRig Miner payload 19 IoCs
  • Sets file execution options in registry 2 TTPs 12 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\14983f31618073d5cc0aa462a006d836_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\14983f31618073d5cc0aa462a006d836_JaffaCakes118.exe"
    1⤵
    • UAC bypass
    • Sets file execution options in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3612
    • C:\Windows\svchost.exe
      "C:\Windows\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe

    Filesize

    20.8MB

    MD5

    97028b95f5947b4df4d9d9ccba0e6c41

    SHA1

    7fa8be1189de9f31e8d5907015dcca4267c117de

    SHA256

    40f9c450d0dc55136f23b02eff7ee77159c39aafe8dd2df6f3e136a488b05a21

    SHA512

    9b49f9a91e25dddb4638f96e3be05a7fd670b5096fc355aa6a8aee4dadb21f46301ec4a3eb42196f7331d6eed219e9f3c77cd53806c8c990f63ee128cbcd956a

  • C:\Windows\config.json

    Filesize

    1KB

    MD5

    88c5c5706d2e237422eda18490dc6a59

    SHA1

    bb8d12375f6b995301e756de2ef4fa3a3f6efd39

    SHA256

    4756a234ed3d61fe187d9b6140792e54e7b757545edff82df594a507e528ed8e

    SHA512

    a417270a0d46de5bb06a621c0383c893042a506524713f89ba55567df6e5c3ac8b198bce5a0300ec6e716897bb53fd3e8289a51240157dc743004517673d4ab7

  • C:\Windows\svchost.exe

    Filesize

    833KB

    MD5

    4a87a4d6677558706db4afaeeeb58d20

    SHA1

    7738dc6a459f8415f0265d36c626b48202cd6764

    SHA256

    08b55f9b7dafc53dfc43f7f70cdd7048d231767745b76dc4474370fb323d7ae7

    SHA512

    bedd8ed4975df3fcd4a0f575d6f38e3841e7a4b771baac4f72033102a070818b8539eb101c50563d89d4f3454899a1cedb33047b02e421256dedf9aaf258b594

  • C:\vcredist2010_x86.log.html

    Filesize

    81KB

    MD5

    342cfad86fdd10458e0993392073ff57

    SHA1

    62c363c788750f80417f1efa961618297153de01

    SHA256

    a5a7ef8783bdcf90ba15fecddb545a3a72c48efd4ded5ec62c6d207a734fa798

    SHA512

    c7c3bb29eeb871e1c4a0838a1b403d09324ac312a4de7344544cf9368d3b52871d69ed20b0629f80934aa1881f47184d4bb35b050afa55d82c2f3aa0815738d5

  • memory/3612-534-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/3612-0-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/3612-392-0x0000000000400000-0x0000000000619000-memory.dmp

    Filesize

    2.1MB

  • memory/4468-391-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-429-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-397-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-400-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-418-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-419-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-428-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-395-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-393-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-533-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-260-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-535-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-536-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB

  • memory/4468-537-0x0000000000400000-0x00000000004DA000-memory.dmp

    Filesize

    872KB