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Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    21/09/2024, 00:51

General

  • Target

    eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe

  • Size

    72KB

  • MD5

    eec2c1539eebe98ff2430443c84b502c

  • SHA1

    0321261ab00e21f04e6fce3b1d4bfe3922ed3cbd

  • SHA256

    bfa21c905d4138da6271a80bf8bbe683a5803a5653555c116151e28c1539f79e

  • SHA512

    e22d1d910337611b56230c4272ebf2b147d0e68b6943c3fe94fb328d966a152b27ec0ad0ff42fbf145e406d8d5de1e472e640d6f71d440707c86522e93871cab

  • SSDEEP

    768:QsUuSrrHS7KljKrdFbCAX6e37Gy09BHqvgJtnvqfYfvhnEHqU09bS7KljKrdFbCK:QsKrr7ATfWHlvVEHp6ATbrr

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=19zRmRWEbe_tvCeYLoFlJAOjP43TkIzc3

xor.base64

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 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.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\eec2c1539eebe98ff2430443c84b502c_JaffaCakes118.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      PID:704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/704-6-0x0000000000400000-0x0000000000553000-memory.dmp

    Filesize

    1.3MB

  • memory/704-8-0x0000000076D90000-0x0000000076F39000-memory.dmp

    Filesize

    1.7MB

  • memory/704-28-0x0000000000400000-0x0000000000553000-memory.dmp

    Filesize

    1.3MB

  • memory/2540-2-0x00000000003D0000-0x00000000003D8000-memory.dmp

    Filesize

    32KB

  • memory/2540-4-0x00000000003D0000-0x00000000003D8000-memory.dmp

    Filesize

    32KB

  • memory/2540-5-0x0000000076D90000-0x0000000076F39000-memory.dmp

    Filesize

    1.7MB

  • memory/2540-3-0x0000000076D91000-0x0000000076E92000-memory.dmp

    Filesize

    1.0MB

  • memory/2540-27-0x0000000076D90000-0x0000000076F39000-memory.dmp

    Filesize

    1.7MB