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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2024, 11:26

General

  • Target

    b7740b80e7e55c51122870c5b9bcc743_JaffaCakes118.exe

  • Size

    704KB

  • MD5

    b7740b80e7e55c51122870c5b9bcc743

  • SHA1

    2047d1d0910dadfbc163f09192ffdb8bc8c1717e

  • SHA256

    2c04ee4cb87e9e0997b7572c12d34281375947f56927b766bf4ac25775521aac

  • SHA512

    98685f155e4ddf37bc49625b20fdc85a78f658b6ffd6300dc3ef3780e5171bde51e70ab2714e1b90972f2d4989661bf2af49a6b2e07fb13e1434bde6436c3414

  • SSDEEP

    12288:6qEqoY9oQsxB5FAYxl4hskilwg84Qx5guzunXMKobsETrKjMU4xO7KjMU4xO:6ZqRPsvchskilwgiMnXMRsQKjYQKjY

Malware Config

Signatures

  • 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
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7740b80e7e55c51122870c5b9bcc743_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b7740b80e7e55c51122870c5b9bcc743_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Users\Admin\ivfdc.exe
      "C:\Users\Admin\ivfdc.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\ivfdc.exe

    Filesize

    704KB

    MD5

    b7740b80e7e55c51122870c5b9bcc743

    SHA1

    2047d1d0910dadfbc163f09192ffdb8bc8c1717e

    SHA256

    2c04ee4cb87e9e0997b7572c12d34281375947f56927b766bf4ac25775521aac

    SHA512

    98685f155e4ddf37bc49625b20fdc85a78f658b6ffd6300dc3ef3780e5171bde51e70ab2714e1b90972f2d4989661bf2af49a6b2e07fb13e1434bde6436c3414

  • memory/656-0-0x0000000075222000-0x0000000075223000-memory.dmp

    Filesize

    4KB

  • memory/656-1-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/656-2-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/656-5-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/656-8-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1952-10-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1952-9-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1952-11-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1952-12-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1952-13-0x0000000075220000-0x00000000757D1000-memory.dmp

    Filesize

    5.7MB