Analysis

  • max time kernel
    20s
  • max time network
    21s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-07-2024 16:25

General

  • Target

    Xwrom/XWorm V5.6.exe

  • Size

    476KB

  • MD5

    bf1ccd2d127e4ac0dc4ad6307cd1b62f

  • SHA1

    fc95eb4ec00d3b745fb97f7f8f140cfbe51c23ac

  • SHA256

    b32c1554a1a62e6d4c30bad330e5146016fe11521671536c669b429b895e5a11

  • SHA512

    0b6fcb5596904849c5d1ef7439af2849394a56a5f64d337b85cfe2158c8aff2c2a6db5a03c5464520537ec5a203f4c784db4e47d48dc16efdfe064a0e831a3ce

  • SSDEEP

    12288:nB3VqDKxV3hy1gtF06T4UD/Tdv0Vsc+F:niOVyv6rPd0y

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Xwrom\XWorm V5.6.exe
    "C:\Users\Admin\AppData\Local\Temp\Xwrom\XWorm V5.6.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4456
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "COM Surrogate" /tr "C:\Users\Public\COM Surrogate"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2308

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4456-0-0x0000000000E50000-0x0000000000ED0000-memory.dmp
    Filesize

    512KB

  • memory/4456-1-0x00007FFBAEFD3000-0x00007FFBAEFD5000-memory.dmp
    Filesize

    8KB

  • memory/4456-2-0x00007FFBAEFD0000-0x00007FFBAFA91000-memory.dmp
    Filesize

    10.8MB