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Analysis

  • max time kernel
    117s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/03/2025, 11:06

General

  • Target

    Transferencia - BBVA 20250310.pdf(45KB).com.exe

  • Size

    461KB

  • MD5

    344c5f114ab236568f1c76668510c0ea

  • SHA1

    135a155a0676b648e1c8ad4e2a9853dfddfb83c1

  • SHA256

    810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c

  • SHA512

    7bc72f6189a0020c3f40a8b79dc440065c80c4efbd3fc96ac53f8b76eb431e33d427d1e543e7af22bb1a6baec24750b0d72e6677788c033e7acd23b1b0a40c20

  • SSDEEP

    6144:ZjybI1JDNqbPuSsq2Bq0u4cQfPZqzfgkPmLiJ0vC52h8Vunr0cTjGz0Am1NKYg9:YfhT0u4x/kuLV6Ah8ww6j9VW

Malware Config

Extracted

Family

xworm

C2

esetnode32-antiviru.ydns.eu:59012

rency.ydns.eu:59012

wqo9.firewall-gateway.de:59012

Attributes
  • Install_directory

    %AppData%

  • install_file

    Window Session Manager.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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe
    "C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2276
    • C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe
      "C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"
      2⤵
        PID:1692
      • C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe
        "C:\Users\Admin\AppData\Local\Temp\Transferencia - BBVA 20250310.pdf(45KB).com.exe"
        2⤵
        • Drops startup file
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:2256

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Roaming\Window Session Manager.exe

      Filesize

      461KB

      MD5

      344c5f114ab236568f1c76668510c0ea

      SHA1

      135a155a0676b648e1c8ad4e2a9853dfddfb83c1

      SHA256

      810e347b05bec3d24178a9f5330d73d85b67f28c6e5e7d82c254743619dd0d0c

      SHA512

      7bc72f6189a0020c3f40a8b79dc440065c80c4efbd3fc96ac53f8b76eb431e33d427d1e543e7af22bb1a6baec24750b0d72e6677788c033e7acd23b1b0a40c20

    • memory/2256-8-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-15-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-29-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2256-28-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2256-27-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2256-7-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-19-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-21-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2256-17-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-9-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-11-0x0000000000400000-0x0000000000414000-memory.dmp

      Filesize

      80KB

    • memory/2256-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2276-6-0x0000000004B70000-0x0000000004BC8000-memory.dmp

      Filesize

      352KB

    • memory/2276-2-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2276-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

      Filesize

      4KB

    • memory/2276-20-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2276-1-0x00000000002F0000-0x000000000036A000-memory.dmp

      Filesize

      488KB

    • memory/2276-5-0x0000000074CB0000-0x000000007539E000-memory.dmp

      Filesize

      6.9MB

    • memory/2276-4-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

      Filesize

      4KB

    • memory/2276-3-0x0000000000580000-0x0000000000590000-memory.dmp

      Filesize

      64KB