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Analysis

  • max time kernel
    30s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    10/08/2024, 18:46

General

  • Target

    873c4bd6b287e83b3ccf5a03638945bc_JaffaCakes118.exe

  • Size

    14KB

  • MD5

    873c4bd6b287e83b3ccf5a03638945bc

  • SHA1

    6ff057ccc778e9ddaca3e12630371478dc0fce47

  • SHA256

    dcf51fc0fb014fdbecd6f10f76297796167a79cff663a65302d8ca0b252d69ce

  • SHA512

    2a9fef81bba6ac2dfcc92c3bfacd57a5286698f496ba805c625379cef41662ed2caba9a19258f3f5f13e42c423cb84d278ce4e3cdf017875fa55bc6dd4cdee7a

  • SSDEEP

    384:7wAV8wyvdRoGLawZWfR/Xpyx++YK1Dw28wZExb:JEdFLrmxXpo++YKJB8wQb

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • 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 registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\873c4bd6b287e83b3ccf5a03638945bc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\873c4bd6b287e83b3ccf5a03638945bc_JaffaCakes118.exe"
    1⤵
    • Adds autorun key to be loaded by Explorer.exe on startup
    • Loads dropped DLL
    • Drops file in System32 directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1736
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c C:\Users\Admin\AppData\Local\Temp\1268.tmp.bat
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:2136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\1268.tmp.bat

    Filesize

    207B

    MD5

    4dd9ca3e9300443eb637a185bf4bd2af

    SHA1

    1ec27fba4a6c1790dcd459ffb32bfbc7063fcc66

    SHA256

    87619be7575f228ae9730bb48a90b31e257f5ad33bf6017c5f84fca08db58450

    SHA512

    27b7317cd723a83d59dfeac44540dfead1be371eee8b7275d684a460c6c124c6c79908c8295c1bb6a20945fd624b8c39a084cfaae1039caf092d7bc1c35889bb

  • C:\Windows\SysWOW64\wrvxvxhe.nls

    Filesize

    428B

    MD5

    b88af31278f3f4193fe357f63784beb6

    SHA1

    cf34b6b1dfe201fdeb9f22994ab277cb1010643d

    SHA256

    026aaa3aef5bcdc7f526721ff1f9a808739f55a06273be6fb81327d644b02aeb

    SHA512

    92f920c4896af443580326c21d04d8637cdf03f90a9807736cc9e8f30d0b6ff8e1f73652af46fbd6d5b3e331674813d0e1e3c2deb820ac035de0db2309cca56b

  • \Windows\SysWOW64\wrvxvxhe.dll

    Filesize

    2.2MB

    MD5

    0810963bd5ffcea6a21b129910145704

    SHA1

    5c205e08306dbd685b91ad0bbf36558b3c0c6f9e

    SHA256

    df29452686bf6e0c490c1d10ea008d6f480360211c71327928d8da2a636df9e0

    SHA512

    24c670f7d894fa8509a0b9c55f10e8fc6a0589373299c33a30a4bee71f3c49d8224bfc7f41731894e40f90c57facfc408c013a9f0c5951dc38a995aa80f34b84

  • memory/1736-16-0x0000000010000000-0x0000000010008000-memory.dmp

    Filesize

    32KB

  • memory/1736-25-0x0000000010000000-0x0000000010008000-memory.dmp

    Filesize

    32KB