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Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/03/2025, 12:15

General

  • Target

    21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe

  • Size

    636KB

  • MD5

    37ef4f24015c203f1f703e634ab7abe3

  • SHA1

    bf007a685cdc77adcec7e214659934b8b7264f25

  • SHA256

    21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326

  • SHA512

    9ff7deb7b9ad9c994a5c0243a1339b558e065b4fce83882ec02932b6e734e7b49d4541215d7dcf40558fd25486ededeaa78a945c335de0e3af95c146506e14e9

  • SSDEEP

    12288:5fcXgNO7W7X28o3knVj0pZnON0zFbfvDm/RAGCP0I+m4SW:ZSWOS6z+Iyqzm/SHP0I+m4n

Malware Config

Extracted

Family

xworm

C2

doe.ydns.eu:5901

wqo9.firewall-gateway.de:5901

Attributes
  • Install_directory

    %AppData%

  • install_file

    MicroSoftEdge.exe

Signatures

  • Detect Xworm Payload 5 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe
    "C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1696
    • C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe
      "C:\Users\Admin\AppData\Local\Temp\21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326.exe"
      2⤵
      • Drops startup file
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:2664
  • C:\Windows\system32\wbem\WmiApSrv.exe
    C:\Windows\system32\wbem\WmiApSrv.exe
    1⤵
      PID:2440

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      636KB

      MD5

      37ef4f24015c203f1f703e634ab7abe3

      SHA1

      bf007a685cdc77adcec7e214659934b8b7264f25

      SHA256

      21b3ce427475b47076786585d7041284d6904b77cc3fe4ed9bb0c58f2b98f326

      SHA512

      9ff7deb7b9ad9c994a5c0243a1339b558e065b4fce83882ec02932b6e734e7b49d4541215d7dcf40558fd25486ededeaa78a945c335de0e3af95c146506e14e9

    • memory/1696-22-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB

    • memory/1696-2-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB

    • memory/1696-3-0x0000000004060000-0x0000000004078000-memory.dmp

      Filesize

      96KB

    • memory/1696-4-0x00000000745AE000-0x00000000745AF000-memory.dmp

      Filesize

      4KB

    • memory/1696-5-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB

    • memory/1696-6-0x0000000004F60000-0x0000000004FBA000-memory.dmp

      Filesize

      360KB

    • memory/1696-1-0x0000000000BB0000-0x0000000000C54000-memory.dmp

      Filesize

      656KB

    • memory/1696-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

      Filesize

      4KB

    • memory/2664-13-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2664-19-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-9-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-11-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-21-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-17-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-23-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2664-7-0x0000000000400000-0x0000000000416000-memory.dmp

      Filesize

      88KB

    • memory/2664-29-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2664-30-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB

    • memory/2664-31-0x00000000745A0000-0x0000000074C8E000-memory.dmp

      Filesize

      6.9MB