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Analysis

  • max time kernel
    119s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    16/03/2025, 10:20

General

  • Target

    JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe

  • Size

    489KB

  • MD5

    79dd0667f51035f1b8322d10acf1688b

  • SHA1

    fe21c49313ad7dacdca94211eb635540551b4f28

  • SHA256

    fb30f6f2adef10ea9f6806afb731977b7d6c67dfddd891eab99a0a8ad3048751

  • SHA512

    921eefd772ef2d1d3553db57174cf66cbcc6bbe9f745cd68fea6e0a9683ffd860e0460a3e6037dbe4848051161631d35dea1a6ea88ce0fb195fa5e26d140a23e

  • SSDEEP

    12288:OVW0BLp7vXRxcBAlhQaVYZiEk2NZjEpPceXQK:OVJLp7vXRqBAlhQxYLIqqK

Malware Config

Signatures

  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 4 IoCs
  • Isrstealer family
  • Detected Nirsoft tools 2 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 8 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_79dd0667f51035f1b8322d10acf1688b.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe" -p
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2440
    • C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe" -p
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\\vbc.exe
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\2WBL59CnMX.ini"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2764
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\ojYMHrppF5.ini"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:2964

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\2WBL59CnMX.ini

    Filesize

    5B

    MD5

    d1ea279fb5559c020a1b4137dc4de237

    SHA1

    db6f8988af46b56216a6f0daf95ab8c9bdb57400

    SHA256

    fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

    SHA512

    720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

  • C:\Users\Admin\AppData\Local\Temp\tmp7926.tmp.exe

    Filesize

    489KB

    MD5

    79dd0667f51035f1b8322d10acf1688b

    SHA1

    fe21c49313ad7dacdca94211eb635540551b4f28

    SHA256

    fb30f6f2adef10ea9f6806afb731977b7d6c67dfddd891eab99a0a8ad3048751

    SHA512

    921eefd772ef2d1d3553db57174cf66cbcc6bbe9f745cd68fea6e0a9683ffd860e0460a3e6037dbe4848051161631d35dea1a6ea88ce0fb195fa5e26d140a23e

  • memory/1508-41-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1508-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1508-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1508-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1508-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1508-23-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1508-61-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1508-60-0x0000000000450000-0x00000000004B7000-memory.dmp

    Filesize

    412KB

  • memory/2208-0-0x00000000745D1000-0x00000000745D2000-memory.dmp

    Filesize

    4KB

  • memory/2208-2-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2208-1-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2208-25-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2440-10-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2440-11-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2440-12-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2440-14-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/2764-32-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2764-30-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2764-35-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2764-31-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2964-57-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2964-56-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2964-55-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2964-59-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/3064-27-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB

  • memory/3064-37-0x00000000745D0000-0x0000000074B7B000-memory.dmp

    Filesize

    5.7MB