Analysis

  • max time kernel
    141s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    17-04-2024 11:24

General

  • Target

    f5a8b8cfa0fdf5222c2d163c9b98e366_JaffaCakes118.exe

  • Size

    3.0MB

  • MD5

    f5a8b8cfa0fdf5222c2d163c9b98e366

  • SHA1

    292625e126bc1a74819220b803b48e3a08b7855b

  • SHA256

    9be991e72ded580a61a4e57c32ddf7fa62959878414078edda71c1f2178672bf

  • SHA512

    5e3ac3bed022c9d9d648713aa3732796b36b2e5b2e089857132bff20531a239495b6f8bd9162231fcb912ac1e2dd02e3abb7ecd4b613057cd184d3aa12a6099f

  • SSDEEP

    49152:KesB9kvW2qx3FuhzaSCjPQov8OnqIt7jVRgUezC0lXWm5ZKZDfDAu:j/v45bj117RKU25Wm5M

Malware Config

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/877756692006318132/wv2tatnT6WHFx8av_Ka4KcRdwz19-L6h0TWkYupv-a0XGX1YUV09zIaN-ZZhgN-KbHhk

Signatures

  • Mercurial Grabber Stealer

    Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 2 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 1 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f5a8b8cfa0fdf5222c2d163c9b98e366_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\f5a8b8cfa0fdf5222c2d163c9b98e366_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Maps connected drives based on registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks SCSI registry key(s)
    • Checks processor information in registry
    • Enumerates system info in registry
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1876
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1876 -s 1908
      2⤵
      • Program crash
      PID:1748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    9bf4f67ee4d8d9bed535caa6a108c484

    SHA1

    5b45f0d7c08069ac51a08febcc9c131229058465

    SHA256

    e412c0667c474dc0533162be095f11e3ae0f1d0f3d65dfbb2468f00593e3a612

    SHA512

    c565c5f9021ccba737a3f9356c7b17f22a47c13ce01453c6531338c3aa70ce60bb8e2ba17f24da78c28160c2ea312be20eb4179911f46d50209c034d850649c1

  • C:\Users\Admin\AppData\Local\Temp\Cab3017.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar3127.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/1876-22-0x0000000000060000-0x000000000087E000-memory.dmp

    Filesize

    8.1MB

  • memory/1876-10-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-0-0x0000000000060000-0x000000000087E000-memory.dmp

    Filesize

    8.1MB

  • memory/1876-24-0x0000000000060000-0x000000000087E000-memory.dmp

    Filesize

    8.1MB

  • memory/1876-11-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-12-0x0000000076E90000-0x0000000076ED7000-memory.dmp

    Filesize

    284KB

  • memory/1876-14-0x0000000076E90000-0x0000000076ED7000-memory.dmp

    Filesize

    284KB

  • memory/1876-13-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-15-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-16-0x0000000076E90000-0x0000000076ED7000-memory.dmp

    Filesize

    284KB

  • memory/1876-18-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-17-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-19-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-21-0x0000000077790000-0x0000000077792000-memory.dmp

    Filesize

    8KB

  • memory/1876-20-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-23-0x0000000074590000-0x0000000074C7E000-memory.dmp

    Filesize

    6.9MB

  • memory/1876-9-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-25-0x0000000005020000-0x0000000005060000-memory.dmp

    Filesize

    256KB

  • memory/1876-7-0x0000000076E90000-0x0000000076ED7000-memory.dmp

    Filesize

    284KB

  • memory/1876-6-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-3-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-2-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-1-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-93-0x0000000000060000-0x000000000087E000-memory.dmp

    Filesize

    8.1MB

  • memory/1876-94-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-95-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-97-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-96-0x0000000076E90000-0x0000000076ED7000-memory.dmp

    Filesize

    284KB

  • memory/1876-98-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-99-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-101-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-100-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-102-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-103-0x00000000768F0000-0x0000000076A00000-memory.dmp

    Filesize

    1.1MB

  • memory/1876-105-0x0000000074590000-0x0000000074C7E000-memory.dmp

    Filesize

    6.9MB

  • memory/1876-106-0x0000000005020000-0x0000000005060000-memory.dmp

    Filesize

    256KB