General

  • Target

    PhantomCrypter.exe

  • Size

    5.0MB

  • Sample

    250122-edgwraxmer

  • MD5

    d4d28f2c6fd9af9ee5a3be30f9ab913b

  • SHA1

    be4264bceaff957ff799b73ebc2479f0fc794815

  • SHA256

    c69d8df82357c95fe43db40465d0169ea8e0feacd8a3e4debe87865544100d9e

  • SHA512

    7eed5b6d3420c930a07aee500e086ec61fd33099cd641a2efe7664081c0e5fdab4d1ad2b4835edcbe3e6722d44e60a75119a2900cfd00b7c182b20f379d7a977

  • SSDEEP

    98304:6l1z3/RZ58MoFyQbbpaR2p1AU6cBSdOWWzSPfEIeGLGIQaW5tqwZ0ch1+NXHKgv3:Y1z5Z58MQJe2PAU6cBSkWWzaETGDW/t

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

EEarXqazEvX73BCq

Attributes
  • Install_directory

    %AppData%

  • install_file

    Chrome Update.exe

  • pastebin_url

    https://pastebin.com/raw/RPPi3ByL

aes.plain
aes.plain
aes.plain

Targets

    • Target

      PhantomCrypter.exe

    • Size

      5.0MB

    • MD5

      d4d28f2c6fd9af9ee5a3be30f9ab913b

    • SHA1

      be4264bceaff957ff799b73ebc2479f0fc794815

    • SHA256

      c69d8df82357c95fe43db40465d0169ea8e0feacd8a3e4debe87865544100d9e

    • SHA512

      7eed5b6d3420c930a07aee500e086ec61fd33099cd641a2efe7664081c0e5fdab4d1ad2b4835edcbe3e6722d44e60a75119a2900cfd00b7c182b20f379d7a977

    • SSDEEP

      98304:6l1z3/RZ58MoFyQbbpaR2p1AU6cBSdOWWzSPfEIeGLGIQaW5tqwZ0ch1+NXHKgv3:Y1z5Z58MQJe2PAU6cBSkWWzaETGDW/t

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Download via BitsAdmin

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks