Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 19:23

General

  • Target

    05e66b7cde6c4929122e8042cc3093b6_JaffaCakes118.exe

  • Size

    16.1MB

  • MD5

    05e66b7cde6c4929122e8042cc3093b6

  • SHA1

    acefb24a5630f8657056c729758b69ffdde287b3

  • SHA256

    526bd0f29e71cb485c51b0f40ed36667e8f341ec4191cd680c39fd4a59ce3635

  • SHA512

    61d676d6555c2b1557872c7b6fda474f8f8f85d558d4760c53a97bebc95f7fec01b3e6bee2340c6c8aa7500fd09d05dc44ba2dc571e318fddb35d0da671a7bda

  • SSDEEP

    393216:dFgR5WrWeWcKZWeW8W7FgR5WrWeWcKZWeW8WuQf:PKiK4

Malware Config

Signatures

  • Blackmoon, KrBanker

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

  • Detect Blackmoon payload 2 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • xmrig

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

  • XMRig Miner payload 17 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.

  • 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).

  • 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\05e66b7cde6c4929122e8042cc3093b6_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\05e66b7cde6c4929122e8042cc3093b6_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:4344
    • C:\Windows\svchost.exe
      "C:\Windows\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:5064

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    18.2MB

    MD5

    d09d1c56233dcdd83b1c91fba5389136

    SHA1

    a4e2152d818c5beebd838156c712d69ddd831a0e

    SHA256

    65b02536d7478291c48cd9147efbea36237daad69844dfb115b8723496d9b27b

    SHA512

    097556edc9748630388b47468632b1f1b5bf2f2d663ca529f25b70322864fc111e057266bf499d21b78b43988a2921a3c1d264699e8115cba73cd8a5dc211979

  • 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

    80KB

    MD5

    8d506df5bf56914267572ff81f8bfeb8

    SHA1

    6bf00d0f76fbba208911c592dace6f66de13712b

    SHA256

    007a2157d5842a181171bc5e19d52b47ab721b8c6aba7938810fc87698a5a8a4

    SHA512

    0cc203f634d5cafc5010c02b6fad9fb429371ef2fe45ec7a17b4855e9d3a9a5fd725506119e63d1a7ad6755d869773ff83853cab3ef607b59b947631a9998ddc

  • memory/4344-0-0x0000000000400000-0x0000000000613000-memory.dmp
    Filesize

    2.1MB

  • memory/5064-396-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-427-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-395-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-391-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-399-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-417-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-418-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-393-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-428-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-298-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-531-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-532-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-533-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB

  • memory/5064-534-0x0000000000400000-0x00000000004DA000-memory.dmp
    Filesize

    872KB