Analysis

  • max time kernel
    150s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 10:18

General

  • Target

    JaffaCakes118_6bee3391e37c6e0715fbbae6a71de790.exe

  • Size

    522KB

  • MD5

    6bee3391e37c6e0715fbbae6a71de790

  • SHA1

    f8fc14887d13a9df24558d3cc927d420d3fa36d5

  • SHA256

    efbca39b8b35dd46e0d5a81a275a6bc67c705240c27c8f293af91baafc8a9c5a

  • SHA512

    cc2e5cb0dfc28c3f75db938535962b67b96c2ffd8d1a1ea14d97f3790c84d844ed17b064722308edefe539f376ba556b3beb5660f4dda5e2551662a948027a2b

  • SSDEEP

    12288:i6kHB9C+9s3WRQukIyYZcEzVzl4b4M05KxdlEGHuXmtbsL:q9sc2Ayq8001E6o

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 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • UPX packed file 14 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 15 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bee3391e37c6e0715fbbae6a71de790.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bee3391e37c6e0715fbbae6a71de790.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1836
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6bee3391e37c6e0715fbbae6a71de790.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\agpmgr.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2068
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\ZzZjDpz2zk.ini"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2864
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
        /scomma "C:\Users\Admin\AppData\Local\Temp\1GXecEVJIc.ini"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:664
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2744
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v "Load" /d "cmd /c C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2516
          • C:\Windows\SysWOW64\reg.exe
            reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v "Load" /d "cmd /c C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe" /f
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2988
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\agpmgr.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\agpmgr.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:2588
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
            5⤵
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:1196
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
              /scomma "C:\Users\Admin\AppData\Local\Temp\pmYjTNSHD6.ini"
              6⤵
              • System Location Discovery: System Language Discovery
              PID:3004
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
              /scomma "C:\Users\Admin\AppData\Local\Temp\kdmrEgGi1S.ini"
              6⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:2608
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1920
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1680

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\ZzZjDpz2zk.ini

    Filesize

    5B

    MD5

    d1ea279fb5559c020a1b4137dc4de237

    SHA1

    db6f8988af46b56216a6f0daf95ab8c9bdb57400

    SHA256

    fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba

    SHA512

    720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\agpmgr.exe

    Filesize

    522KB

    MD5

    6bee3391e37c6e0715fbbae6a71de790

    SHA1

    f8fc14887d13a9df24558d3cc927d420d3fa36d5

    SHA256

    efbca39b8b35dd46e0d5a81a275a6bc67c705240c27c8f293af91baafc8a9c5a

    SHA512

    cc2e5cb0dfc28c3f75db938535962b67b96c2ffd8d1a1ea14d97f3790c84d844ed17b064722308edefe539f376ba556b3beb5660f4dda5e2551662a948027a2b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\wpasv.exe

    Filesize

    13KB

    MD5

    1a606d51e1ed097e36d3731097ae0f54

    SHA1

    8cb97f5279ab807741c989b62a88c0819e2d7f74

    SHA256

    14a0de8abcb017017bb0990e9cc068cb72d339614727b0479795645ca678b980

    SHA512

    f0faba057b9649847b0507fdd9e91004f6a9988e6a6b823d586280f86902eebb38ba2c5ddc65229055acd280ff4b54878f72bf8f5f7fdd367a2bffa0cbed2d71

  • memory/664-33-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/664-34-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/664-35-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/664-36-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/1196-45-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1836-3-0x00000000746F0000-0x0000000074C9B000-memory.dmp

    Filesize

    5.7MB

  • memory/1836-0-0x00000000746F1000-0x00000000746F2000-memory.dmp

    Filesize

    4KB

  • memory/1836-2-0x00000000746F0000-0x0000000074C9B000-memory.dmp

    Filesize

    5.7MB

  • memory/1836-1-0x00000000746F0000-0x0000000074C9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2608-57-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2608-59-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2608-58-0x0000000000400000-0x000000000041F000-memory.dmp

    Filesize

    124KB

  • memory/2728-15-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2728-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2728-7-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2728-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2728-32-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2728-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2728-37-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2864-24-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2864-23-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2864-25-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/2864-26-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3004-51-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3004-52-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3004-53-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB