Analysis

  • max time kernel
    130s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/03/2025, 18:24

General

  • Target

    efe.exe

  • Size

    45KB

  • MD5

    cb25f48fae0cc0c1e2404a26bb36e087

  • SHA1

    8686dc9b9cfc2d359253c8fda397089cbf8f14b1

  • SHA256

    42404161307a26214069b212b830faa4b46ce3a3bdb53626ebb5d9cd9c81489b

  • SHA512

    051225e2a0bd6eeaa25513c55d9bee75fbf0bd9fd658602f01b149a72509a4185f28c2cf00a8c0a9ab9f8e619315ce603f2c96b829fe431f9591db0365ec7a99

  • SSDEEP

    768:edhO/poiiUcjlJInJ3EH9Xqk5nWEZ5SbTDatuI7CPW54:ow+jjgnlEH9XqcnW85SbTYuIA

Malware Config

Extracted

Family

xenorat

C2

192.168.0.20

Mutex

Xeno_rat_nd8912d

Attributes
  • delay

    5000

  • install_path

    appdata

  • port

    4444

  • startup_name

    nothingset

Signatures

  • Detect XenoRat Payload 2 IoCs
  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • Xenorat family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\efe.exe
    "C:\Users\Admin\AppData\Local\Temp\efe.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Users\Admin\AppData\Roaming\XenoManager\efe.exe
      "C:\Users\Admin\AppData\Roaming\XenoManager\efe.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\efe.exe.log

    Filesize

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • C:\Users\Admin\AppData\Roaming\XenoManager\efe.exe

    Filesize

    45KB

    MD5

    cb25f48fae0cc0c1e2404a26bb36e087

    SHA1

    8686dc9b9cfc2d359253c8fda397089cbf8f14b1

    SHA256

    42404161307a26214069b212b830faa4b46ce3a3bdb53626ebb5d9cd9c81489b

    SHA512

    051225e2a0bd6eeaa25513c55d9bee75fbf0bd9fd658602f01b149a72509a4185f28c2cf00a8c0a9ab9f8e619315ce603f2c96b829fe431f9591db0365ec7a99

  • memory/1740-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

    Filesize

    4KB

  • memory/1740-1-0x0000000000C40000-0x0000000000C52000-memory.dmp

    Filesize

    72KB

  • memory/2952-15-0x0000000074DF0000-0x00000000755A0000-memory.dmp

    Filesize

    7.7MB

  • memory/2952-16-0x0000000074DF0000-0x00000000755A0000-memory.dmp

    Filesize

    7.7MB