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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    29/01/2025, 01:05

General

  • Target

    JaffaCakes118_5119b8df58fae088f338fb83d9a2b3bc.exe

  • Size

    933KB

  • MD5

    5119b8df58fae088f338fb83d9a2b3bc

  • SHA1

    5d6ffd11b68784c6342dc03a044fea4f2550ee1f

  • SHA256

    936daa7b23217158833c1e1b9b05a1ebfb07caa12ad53d11481f2c510f30d6fb

  • SHA512

    83a0df00d54c89d5f624a211a8f84d421e57d452dd8aa9439822ca218835f8980d149eb392d2adae4064f8a0cafeb2e9c9c46b32c9130b00ee93e0eb1a592e88

  • SSDEEP

    12288:ApegXVGSgu10Vdx2mT0tL5kDrPrIrpJl3FbONGNT19Himy8H4CNjGzwUOOUjjoKc:AZsSaQ4PAZ2CJxHjjohNb4i

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
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of web browsers 3 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 2 IoCs
  • UPX packed file 5 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 4 IoCs

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

  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5119b8df58fae088f338fb83d9a2b3bc.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5119b8df58fae088f338fb83d9a2b3bc.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Users\Admin\AppData\Local\Temp\AutoUpdatePlus.exe
      "C:\Users\Admin\AppData\Local\Temp\AutoUpdatePlus.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3008
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2556
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\k4VPihGPAJ.ini"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\k4VPihGPAJ.ini

    Filesize

    5B

    MD5

    d1ea279fb5559c020a1b4137dc4de237

    SHA1

    db6f8988af46b56216a6f0daf95ab8c9bdb57400

    SHA256

    fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

    SHA512

    720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

  • \Users\Admin\AppData\Local\Temp\AutoUpdatePlus.exe

    Filesize

    440KB

    MD5

    e8b79675961ba6f00a41b947104d2e2a

    SHA1

    c42402bd9aa85624204083970776519eb881d5c3

    SHA256

    515d7111bcdb1ba733a5eb5e486df1b375a018c26df70613d3a20b2e42e217e0

    SHA512

    010951169fecdd530b54a740e7731d3d4aeeb0431ee27fc8cfed55125f7b26b95472aa7aca8f6f92ef3c74174eef0db38785d52b8442692d7b726ad4e1fabbc5

  • \Users\Admin\AppData\Local\Temp\svchost.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • memory/1048-34-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

  • memory/1048-1-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

  • memory/1048-3-0x0000000074B80000-0x000000007512B000-memory.dmp

    Filesize

    5.7MB

  • memory/1048-0-0x0000000074B81000-0x0000000074B82000-memory.dmp

    Filesize

    4KB

  • memory/2104-40-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2104-37-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2104-36-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2104-35-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2104-32-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2556-21-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2556-20-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2556-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2556-24-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2556-19-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2556-42-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2556-46-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

  • memory/2556-44-0x0000000000440000-0x00000000005C1000-memory.dmp

    Filesize

    1.5MB