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Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    02/04/2024, 13:16

General

  • Target

    8d97f71457a0a2977a82571583306c26_JaffaCakes118.exe

  • Size

    396KB

  • MD5

    8d97f71457a0a2977a82571583306c26

  • SHA1

    936800c740c13a3fc2e05a1c1376007f58002a7d

  • SHA256

    a7c9e0bba10b853dd183f2c6b732bd0e1001f1a7b455007dc3022ff465b7797f

  • SHA512

    5708375538d7b9927784809912a0b0588e200aaf62668226b9b83c2c4879306d989bef3033807bd7bb8989a56b58b2369b42327968f23f2dddc6d9b2975c51f5

  • SSDEEP

    12288:7ycqterR53JplKiFwgxtQ9LdQAGAHUq/uzK6UA8t9HHHHHHHHHIHHHHHHczJXNAG:7QtervJXzQ9L

Malware Config

Extracted

Family

oski

C2

forum.daffodil-bd.com

Signatures

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d97f71457a0a2977a82571583306c26_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8d97f71457a0a2977a82571583306c26_JaffaCakes118.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\8d97f71457a0a2977a82571583306c26_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\8d97f71457a0a2977a82571583306c26_JaffaCakes118.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2324
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 620
        3⤵
        • Program crash
        PID:2452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\msvcp140.dll

    Filesize

    9KB

    MD5

    c75c339af917d6b6c5a281fb984cd007

    SHA1

    1330d44ede74c2b8e34823ffd0e864b1c282690d

    SHA256

    789bcff33cbe0e056e0844e76963bf63d653a6a356ae8ce59b8ff76f407e122d

    SHA512

    2f3ca1e7b34b7afa6a403bb74b1180f55a0233aea0a6c419a1eacfab11b614c48877b56172657d35188ce5cb27d29471a6c16443e84f428488a2d84c3d18a9d4

  • memory/1504-21-0x00000000743D0000-0x0000000074ABE000-memory.dmp

    Filesize

    6.9MB

  • memory/1504-1-0x00000000743D0000-0x0000000074ABE000-memory.dmp

    Filesize

    6.9MB

  • memory/1504-2-0x0000000000480000-0x0000000000486000-memory.dmp

    Filesize

    24KB

  • memory/1504-3-0x00000000049F0000-0x0000000004A30000-memory.dmp

    Filesize

    256KB

  • memory/1504-0-0x0000000001050000-0x00000000010BC000-memory.dmp

    Filesize

    432KB

  • memory/1504-5-0x00000000004F0000-0x00000000004FA000-memory.dmp

    Filesize

    40KB

  • memory/2324-6-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-14-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-18-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2324-20-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-8-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-10-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-22-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-12-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2324-32-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB