Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-11-2024 11:05

General

  • Target

    b0d5c8abbaa4625087a2a43e00a6d47a_JaffaCakes118.exe

  • Size

    122KB

  • MD5

    b0d5c8abbaa4625087a2a43e00a6d47a

  • SHA1

    c42adfb169b90be84add9387ba875ab5cbcf638d

  • SHA256

    d3bb9f49727406153a2aac4a0cab2a809f33b30eb86654b74754e398118718c1

  • SHA512

    44fda4b602621954ccd522f0f3df046869e8e49447ca13fe3ebc738635d713d3686fab6b68dd0719dacfbd158e3bb8a8b7f042632297e7ffedaa26eecc2eeb1c

  • SSDEEP

    3072:kCjAjjkir/I3l/hOhc6APDhOSnqt0YMcqxShc:XqR4yxAbgmUeS

Malware Config

Extracted

Family

xtremerat

C2

zipitru.no-ip.org

Signatures

  • Detect XtremeRAT payload 4 IoCs
  • XtremeRAT

    The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.

  • Xtremerat family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 6 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b0d5c8abbaa4625087a2a43e00a6d47a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b0d5c8abbaa4625087a2a43e00a6d47a_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:344
    • C:\Users\Admin\AppData\Local\Temp\b0d5c8abbaa4625087a2a43e00a6d47a_JaffaCakes118.exe
      C:\Users\Admin\AppData\Local\Temp\b0d5c8abbaa4625087a2a43e00a6d47a_JaffaCakes118.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1840
      • C:\Windows\SysWOW64\svchost.exe
        svchost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:888
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 888 -s 488
          4⤵
          • Program crash
          PID:3972
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 888 -s 496
          4⤵
          • Program crash
          PID:3668
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
        3⤵
          PID:3512
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\VSCover.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\VSCover.exe"
        2⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4888
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 888 -ip 888
      1⤵
        PID:3640
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 888 -ip 888
        1⤵
          PID:3712

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\VSCover.exe

          Filesize

          12KB

          MD5

          4ed67c056c520b02619836b5b5a03bed

          SHA1

          5cca9b1083aef2220a06170967ceb24f3c456cc6

          SHA256

          8eef60ff78478c1e9322415634708d629074270a7329778156bbc9e141eaa35f

          SHA512

          5b7d327c9489510740f52a431ae222734b53fe2eb30f0777c49e129ea66e30134a91fc67b6bfc993741bc403829354c1078e1c85b82cf74f539f88b587a0d3d4

        • memory/344-1-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/344-2-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/344-29-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/344-28-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/344-27-0x00000000754B2000-0x00000000754B3000-memory.dmp

          Filesize

          4KB

        • memory/344-0-0x00000000754B2000-0x00000000754B3000-memory.dmp

          Filesize

          4KB

        • memory/888-26-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/888-12-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/1840-10-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/1840-11-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/1840-9-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/1840-7-0x0000000010000000-0x000000001004D000-memory.dmp

          Filesize

          308KB

        • memory/4888-23-0x00000000754B2000-0x00000000754B3000-memory.dmp

          Filesize

          4KB

        • memory/4888-24-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/4888-25-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/4888-30-0x00000000754B2000-0x00000000754B3000-memory.dmp

          Filesize

          4KB

        • memory/4888-31-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB

        • memory/4888-32-0x00000000754B0000-0x0000000075A61000-memory.dmp

          Filesize

          5.7MB