Analysis

  • max time kernel
    149s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-07-2024 10:53

General

  • Target

    sigma.exe

  • Size

    45KB

  • MD5

    04ebe5e1cd3f1f4ac07ccba6c357d5c7

  • SHA1

    71ae4ea691a78283180f2a8a3c44d1f413fa44de

  • SHA256

    1396bfabd8e337f2f2349d0c3fd6f4fdb925adeb2ead8357b61bb0896d9d618a

  • SHA512

    d8f93cdc0c0d19bcf714640f71eb568e93c30b196815002edc719436ad7bddc81b57ec52de2b89109614e049334d445fb11ad564821d9c0bd500bc4535da39ed

  • SSDEEP

    768:ldhO/poiiUcjlJInmjsZ8H9Xqk5nWEZ5SbTDaRuI7CPW5T:7w+jjgnMsZ8H9XqcnW85SbT8uIb

Score
10/10

Malware Config

Extracted

Family

xenorat

C2

147.185.221.19:33365

Mutex

Windows Seciurity

Attributes
  • delay

    5000

  • install_path

    appdata

  • port

    2137

  • startup_name

    WIindows Security

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).

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sigma.exe
    "C:\Users\Admin\AppData\Local\Temp\sigma.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2332
    • C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe
      "C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1892
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks.exe" /Create /TN "WIindows Security" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5813.tmp" /F
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4460

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

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

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • C:\Users\Admin\AppData\Local\Temp\tmp5813.tmp
    Filesize

    1KB

    MD5

    66032aa5781de4895154a2b93e15815d

    SHA1

    3afdb800efb8896b3647de47265c0fb5819eb6ce

    SHA256

    86cbcaac391b2315640f5205e9787c91d1333fd9ca951e1562f87697563e1979

    SHA512

    2013c67df8656ac1166378fc210be99a479fb171e059e87653692a66d828bce105e245cf4f317b2b4e9bbc9592956b4290bef82b32030f8dcd55db56fe14de25

  • C:\Users\Admin\AppData\Roaming\XenoManager\sigma.exe
    Filesize

    45KB

    MD5

    04ebe5e1cd3f1f4ac07ccba6c357d5c7

    SHA1

    71ae4ea691a78283180f2a8a3c44d1f413fa44de

    SHA256

    1396bfabd8e337f2f2349d0c3fd6f4fdb925adeb2ead8357b61bb0896d9d618a

    SHA512

    d8f93cdc0c0d19bcf714640f71eb568e93c30b196815002edc719436ad7bddc81b57ec52de2b89109614e049334d445fb11ad564821d9c0bd500bc4535da39ed

  • memory/1892-15-0x0000000075220000-0x00000000759D0000-memory.dmp
    Filesize

    7.7MB

  • memory/1892-18-0x0000000075220000-0x00000000759D0000-memory.dmp
    Filesize

    7.7MB

  • memory/1892-19-0x0000000075220000-0x00000000759D0000-memory.dmp
    Filesize

    7.7MB

  • memory/2332-0-0x000000007522E000-0x000000007522F000-memory.dmp
    Filesize

    4KB

  • memory/2332-1-0x0000000000160000-0x0000000000172000-memory.dmp
    Filesize

    72KB