Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-07-2024 03:41

General

  • Target

    727520c8f04a777db94c7876cc04de7c_JaffaCakes118.exe

  • Size

    82KB

  • MD5

    727520c8f04a777db94c7876cc04de7c

  • SHA1

    1c9f81f6d26053223be4a3d71c1ad897fb57c270

  • SHA256

    474e32a6bbc8465308f5c0d5caa22b1f7adfc598cbab2af32f8c5a2e77d2b334

  • SHA512

    79da400aab69539efb157104afd2389886b9da92e16aaa10d99d30152bf07dae335b857cfe0ce682c05919d374afd9b0099fb5dcac59fff581a70337a07d760a

  • SSDEEP

    1536:yT4Pwr7hfjH0xX1SpkFjA4gU5q4xqV0GCc/bkRA/UO9Owpf0utnDSg:ysiFfjslxFjA16q8intpJ0cnDSg

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 6 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • UPX packed file 2 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 14 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\727520c8f04a777db94c7876cc04de7c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\727520c8f04a777db94c7876cc04de7c_JaffaCakes118.exe"
    1⤵
    • Adds autorun key to be loaded by Explorer.exe on startup
    • Boot or Logon Autostart Execution: Active Setup
    • Checks computer location settings
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s sockins32.dll
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:3568
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\727520~1.EXE >> NUL
      2⤵
      • System Location Discovery: System Language Discovery
      PID:772

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\sockins32.dll

    Filesize

    32KB

    MD5

    e7b5fa5dbff313f89a12198235d9eb2f

    SHA1

    a14a045ddf1dfa79c55f3d91b006cf6344e394f5

    SHA256

    bba4bf293335888d8a80ecc5d61aacd7f718be49ed33fb782bc9421306da21a5

    SHA512

    671444c4e3568a20378cd53ecd7a845a469e77c5bde83cb627dc7856d56fd8a63f612147bbb24afa93f790e0499176cc15d29c598ce63344e13dbe3a13b605bc

  • memory/3100-0-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3100-1-0x00000000004C0000-0x00000000004D6000-memory.dmp

    Filesize

    88KB

  • memory/3100-2-0x0000000000401000-0x0000000000403000-memory.dmp

    Filesize

    8KB

  • memory/3100-8-0x0000000000400000-0x0000000000418000-memory.dmp

    Filesize

    96KB

  • memory/3100-9-0x00000000004C0000-0x00000000004D6000-memory.dmp

    Filesize

    88KB

  • memory/3568-10-0x0000000010000000-0x0000000010019000-memory.dmp

    Filesize

    100KB