Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26-01-2025 02:39

General

  • Target

    a5eb9015a338cb29858b97dca0bdecb1ba9e3bb2bab673d533056c35a10ebf6d.exe

  • Size

    1.8MB

  • MD5

    79e79fa7b98879064ffadaf432bb72d4

  • SHA1

    96e4e255a545381b26218ac0e175c11c77d0c3fe

  • SHA256

    a5eb9015a338cb29858b97dca0bdecb1ba9e3bb2bab673d533056c35a10ebf6d

  • SHA512

    d2ccf511b46dffca7eb3bee4b461aeda4376b2ad8d7ae6cfd3e229ebe100e3fac2f4787de35d335cbe676dcb60a4f390e4bf59e793fe0e18f357ede786dc5611

  • SSDEEP

    49152:ALIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1Zs:cIUXQgBiI6i2KFU0yBfM7a9QDosGeo4f

Malware Config

Signatures

  • Blackshades

    Blackshades is a remote access trojan with various capabilities.

  • Blackshades family
  • Blackshades payload 10 IoCs
  • Modifies firewall policy service 3 TTPs 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 9 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 15 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 14 IoCs

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

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5eb9015a338cb29858b97dca0bdecb1ba9e3bb2bab673d533056c35a10ebf6d.exe
    "C:\Users\Admin\AppData\Local\Temp\a5eb9015a338cb29858b97dca0bdecb1ba9e3bb2bab673d533056c35a10ebf6d.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\jVsEU.exe
      "C:\Users\Admin\AppData\Local\Temp\jVsEU.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2796
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\dCSiB.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2768
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "csrs" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2556
    • C:\Users\Admin\AppData\Roaming\csrs.exe
      "C:\Users\Admin\AppData\Roaming\csrs.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:2960
      • C:\Users\Admin\AppData\Roaming\csrs.exe
        C:\Users\Admin\AppData\Roaming\csrs.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2208
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2112
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:568
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2636
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2428
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1292
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2036
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2236
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:840

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\dCSiB.bat

    Filesize

    130B

    MD5

    34a635bb69f9dc2d8e8ceba2f6b25308

    SHA1

    66bbd6b4eb975af0a799c6be7aaed6917f5df10c

    SHA256

    eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

    SHA512

    ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

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

    Filesize

    12KB

    MD5

    466773bfcbd01059584cdae36e3c281c

    SHA1

    81e68615ef27cf363d6fe96582433c8a7ce8043b

    SHA256

    21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

    SHA512

    1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

  • C:\Users\Admin\AppData\Roaming\csrs.exe

    Filesize

    1.8MB

    MD5

    521a53c6faa3becd8660e455d13957d4

    SHA1

    2a04ade4de6e6db024560762e0d0eb3f7598954c

    SHA256

    6149653f919b85feaf6d3d81046b0b7201fc66964ed0c9ce3527978de624454f

    SHA512

    babe5af445efd75db6a47e542a6bf66775613d522cecec1a668ec0ad8dc8b73462a9f9dbeda30f346939b3795080ada40b8786eb09fb2dc2eb1d7e7c8fa2e03c

  • memory/2156-12-0x0000000001ED0000-0x0000000001EE7000-memory.dmp

    Filesize

    92KB

  • memory/2156-9-0x0000000001ED0000-0x0000000001EE7000-memory.dmp

    Filesize

    92KB

  • memory/2156-19-0x00000000027F0000-0x0000000002807000-memory.dmp

    Filesize

    92KB

  • memory/2156-0-0x0000000000400000-0x00000000005D9000-memory.dmp

    Filesize

    1.8MB

  • memory/2208-85-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-89-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-68-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-65-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-104-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-76-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-80-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-83-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-99-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-87-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-69-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2208-94-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2796-21-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2796-75-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB