Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2024 03:50

General

  • Target

    ss.exe

  • Size

    45KB

  • MD5

    b33e48a704a3830fe8faff21ba6a9ace

  • SHA1

    6fa7424204cea956bc0d39985d44f5372992e95c

  • SHA256

    600f0e940b3e1577146165bb8336815b5bcee0d3d52f85b5cd7905d508c8ce95

  • SHA512

    1310f8c522f42c5a476a5a8feff9a4215c65c55ec87454dc9cd8b43968d88d9a9c20938d4735bfc4ba8db6d9be8de9a305847017cf8bf336f012b57f5ef9abfd

  • SSDEEP

    768:9dhO/poiiUcjlJIn4QuH9Xqk5nWEZ5SbTDawWI7CPW51:zw+jjgnAH9XqcnW85SbTpWI9

Malware Config

Extracted

Family

xenorat

C2

192.168.56.1

Mutex

XVirus.new

Attributes
  • delay

    5000

  • install_path

    temp

  • port

    4444

  • startup_name

    nothingset

Signatures

  • XenorRat

    XenorRat is a remote access trojan written in C#.

  • 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\ss.exe
    "C:\Users\Admin\AppData\Local\Temp\ss.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1356
    • C:\Users\Admin\AppData\Local\Temp\XenoManager\ss.exe
      "C:\Users\Admin\AppData\Local\Temp\XenoManager\ss.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:1556

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • C:\Users\Admin\AppData\Local\Temp\XenoManager\ss.exe

    Filesize

    45KB

    MD5

    b33e48a704a3830fe8faff21ba6a9ace

    SHA1

    6fa7424204cea956bc0d39985d44f5372992e95c

    SHA256

    600f0e940b3e1577146165bb8336815b5bcee0d3d52f85b5cd7905d508c8ce95

    SHA512

    1310f8c522f42c5a476a5a8feff9a4215c65c55ec87454dc9cd8b43968d88d9a9c20938d4735bfc4ba8db6d9be8de9a305847017cf8bf336f012b57f5ef9abfd

  • memory/1356-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

    Filesize

    4KB

  • memory/1356-1-0x0000000000350000-0x0000000000362000-memory.dmp

    Filesize

    72KB

  • memory/1556-15-0x0000000074D10000-0x00000000754C0000-memory.dmp

    Filesize

    7.7MB

  • memory/1556-16-0x0000000074D10000-0x00000000754C0000-memory.dmp

    Filesize

    7.7MB