Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 16:33

General

  • Target

    dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe

  • Size

    368KB

  • MD5

    7b3ff7f2f522779c5bd0cc9862190210

  • SHA1

    efbbee045ba78058f6735a472343fe9748834be8

  • SHA256

    dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9

  • SHA512

    ca3acc3d41a819fb37fd7a37c27fb19250846f5174c4d132e8d4e9f30caaa84aa3405d8c65cafba08328b1c11c445d28136de5bca934aee10156304b43ecf9b6

  • SSDEEP

    6144:bYXlu7PKTgM8jlcud0oTPP/eqTNYDWyys9YIusnowR/gVxoCiLXcisNC79FPQ2Hx:2rTgM8j6QxNpyVY6/gV8F

Malware Config

Signatures

  • ISR Stealer

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

  • ISR Stealer payload 5 IoCs
  • Isrstealer family
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 9 IoCs
  • Loads dropped DLL 16 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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 8 IoCs
  • UPX packed file 4 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 12 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe
    "C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2552
    • C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe
      "C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1952
      • C:\Users\Admin\AppData\Local\Temp\MGQMH.exe
        "C:\Users\Admin\AppData\Local\Temp\MGQMH.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1828
        • C:\Users\Admin\AppData\Local\Temp\MGQMH.exe
          "C:\Users\Admin\AppData\Local\Temp\MGQMH.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2560
          • C:\Users\Admin\AppData\Local\Temp\MGQMH.exe
            "C:\Users\Admin\AppData\Local\Temp\MGQMH.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            PID:2116
    • C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe
      "C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Users\Admin\AppData\Roaming\Host.exe
        "C:\Users\Admin\AppData\Roaming\Host.exe" C:\Users\Admin\AppData\Local\Temp\dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9N.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Users\Admin\AppData\Roaming\Host.exe
          "C:\Users\Admin\AppData\Roaming\Host.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2332
          • C:\Users\Admin\AppData\Local\Temp\MHRMI.exe
            "C:\Users\Admin\AppData\Local\Temp\MHRMI.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:2532
            • C:\Users\Admin\AppData\Local\Temp\MHRMI.exe
              "C:\Users\Admin\AppData\Local\Temp\MHRMI.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              PID:332
              • C:\Users\Admin\AppData\Local\Temp\MHRMI.exe
                "C:\Users\Admin\AppData\Local\Temp\MHRMI.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:2252
        • C:\Users\Admin\AppData\Roaming\Host.exe
          "C:\Users\Admin\AppData\Roaming\Host.exe"
          4⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:908

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MGQMH.exe

    Filesize

    320KB

    MD5

    ccc2260269cb43ddadda9444e3d112f7

    SHA1

    ddab46acc12d7c60a15fa363f88030f1dd539fcb

    SHA256

    8ca1bd039407381c33fb7ab570b6e95b0ce64b0d5ef64a1968f9b55647cc1911

    SHA512

    787d0b4f5d89b840a4917c78e46f963c8c96a96ec005b45d085222ef307c2a76f074c4a65ca033b038e1b7d1419c7cd3c5c5f3075c3ea24e546c68bdd7643fde

  • C:\Users\Admin\AppData\Local\Temp\data.dmp

    Filesize

    54B

    MD5

    c10dbeca73f8835240e08e4511284b83

    SHA1

    0032f8f941cc07768189ca6ba32b1beede6b6917

    SHA256

    0b6b62094048f0a069b4582f837afcb941db51340d0b16d578e8cbe8603a071e

    SHA512

    34f7ab8b4ab7b4996b82ffc49198103ef245ee7dd5ccfec793a9ee391b9e9bb30bd3916b4ebeaa9c66a4b5ca42f8572418f16dc83d41073bc94389c19916b967

  • \Users\Admin\AppData\Roaming\Host.exe

    Filesize

    368KB

    MD5

    7b3ff7f2f522779c5bd0cc9862190210

    SHA1

    efbbee045ba78058f6735a472343fe9748834be8

    SHA256

    dc5225380dea039e3ce7b5156361fc68bc205cfdba8c9976f77192f4979f14d9

    SHA512

    ca3acc3d41a819fb37fd7a37c27fb19250846f5174c4d132e8d4e9f30caaa84aa3405d8c65cafba08328b1c11c445d28136de5bca934aee10156304b43ecf9b6

  • memory/1952-315-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/1952-698-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2332-701-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2332-628-0x0000000000400000-0x0000000000459000-memory.dmp

    Filesize

    356KB

  • memory/2552-24-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/2552-118-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/2552-80-0x00000000002A0000-0x00000000002A1000-memory.dmp

    Filesize

    4KB

  • memory/2552-44-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/2552-34-0x0000000000270000-0x0000000000271000-memory.dmp

    Filesize

    4KB

  • memory/2552-2-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB

  • memory/2552-14-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2552-4-0x0000000000230000-0x0000000000231000-memory.dmp

    Filesize

    4KB