General

  • Target

    Install-app.exe

  • Size

    6.7MB

  • Sample

    241204-c31n2ssqbn

  • MD5

    651bb0998d36b385c4be0d3926fa9b18

  • SHA1

    ed41f1f6fb5e8806e158a58a83aec8c95a031955

  • SHA256

    dfae506de8e58c6e71d548963f21885131bdb9436948a1ca9a9fa9e1a450f837

  • SHA512

    8f569dc8ff67c41bb363a62f96f671401819dca44332995a2ecf22d48b7dfca6a8a7df56698e0818f8a566ca7a64568e4dc5714df480c37a23820f7efe8ce4aa

  • SSDEEP

    98304:nwREzB+tLaHw0E9wP4aJFZCZNaoP1XWrJp1wfahW3IyYmLlZ74nMI9sRwS6swrRb:Vz6aHw04a7Z2XPFOp1XAY+Z7zIrsq

Malware Config

Extracted

Family

xworm

Mutex

0LLXgeoJ4l4QFpG6

Attributes
  • install_file

    USBDriver.exe

  • pastebin_url

    https://pastebin.com/raw/FrUYqTuA

aes.plain

Targets

    • Target

      Install-app.exe

    • Size

      6.7MB

    • MD5

      651bb0998d36b385c4be0d3926fa9b18

    • SHA1

      ed41f1f6fb5e8806e158a58a83aec8c95a031955

    • SHA256

      dfae506de8e58c6e71d548963f21885131bdb9436948a1ca9a9fa9e1a450f837

    • SHA512

      8f569dc8ff67c41bb363a62f96f671401819dca44332995a2ecf22d48b7dfca6a8a7df56698e0818f8a566ca7a64568e4dc5714df480c37a23820f7efe8ce4aa

    • SSDEEP

      98304:nwREzB+tLaHw0E9wP4aJFZCZNaoP1XWrJp1wfahW3IyYmLlZ74nMI9sRwS6swrRb:Vz6aHw04a7Z2XPFOp1XAY+Z7zIrsq

    • Detect Xworm Payload

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Creates new service(s)

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks