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Analysis

  • max time kernel
    93s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2024, 02:14

General

  • Target

    040183d6c28f6929c991378aca48b100_JaffaCakes118.exe

  • Size

    172KB

  • MD5

    040183d6c28f6929c991378aca48b100

  • SHA1

    91272d50c809c7468e8b19824b140837cbd47ff4

  • SHA256

    405eec7af524eb8589c1951f05e27375f27ca082f09274f0455f4f51c5522de7

  • SHA512

    fd10cab9081764989a03a342f1cdb5df5ac51a4b47fc5a7ffba84c47fd00d9ea16b713d04f6f70982794137857974fa7893415ab8cc5a905057f81afff240e2c

  • SSDEEP

    3072:xnOn7t7XpdpCCTg/sxFgJDU2CIHzeMHaNtKhZGl1Xx3JJa1XagIxEc92UO:xKpdcCrTqQlMHaNtIZGlfJJa1NIxr90

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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.

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\040183d6c28f6929c991378aca48b100_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\040183d6c28f6929c991378aca48b100_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Users\Admin\AppData\Local\Temp\nsm4FD4.tmp\northstar.exe
      C:\Users\Admin\AppData\Local\Temp\nsm4FD4.tmp\northstar.exe /u4e9422ac-75a8-4a0f-9b5b-46785bc06f2f /e4792101 /dT201212111531
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      • Suspicious use of SetWindowsHookEx
      PID:3868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsm4FD4.tmp\System.dll

    Filesize

    21KB

    MD5

    5ebc73650256e9c8ddbcda231db829a1

    SHA1

    988d4535e18754ab2a6248abae96c5697d7dbcd5

    SHA256

    1eaa543842df7795404184e8892a1654b0773dbc9bd8b54c7fdb9e68f4355493

    SHA512

    b21266e76fc7263af982a1336a766e47ccf348ed56b305dbb09f03574c9b2a7309f12200e80d86f9a251381be6e87a41206447f11c51899cb31fba10da1d5270

  • C:\Users\Admin\AppData\Local\Temp\nsm4FD4.tmp\northstar.exe

    Filesize

    274KB

    MD5

    9c22c8cac2bf1372e7e1bf4ce16e99a2

    SHA1

    a4db39cf2abf369f2f11738ac61947e9ea6326c3

    SHA256

    48e6837019dbf36d5baf416a9bf72e06230ee632e35d6ab5005628fbc6c21b64

    SHA512

    d3c694b672edeca6c22b7f42f8d7562c8c6b5a4d290acca41095713224a58b9a56cd179e4b9f6fbac4ce8f8e0a02fa2a98c0d1f7cf9ccd87021910b8086deb50

  • memory/3868-13-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

    Filesize

    4KB

  • memory/3868-14-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-15-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-36-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-37-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-38-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-39-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-40-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/3868-41-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

    Filesize

    4KB

  • memory/3868-43-0x0000000074BC0000-0x0000000075171000-memory.dmp

    Filesize

    5.7MB

  • memory/4060-47-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB