General

  • Target

    Build.exe

  • Size

    30.9MB

  • Sample

    240712-3qv6xaybpa

  • MD5

    d182a5d2f6382d53cce7b46fc60bb7dc

  • SHA1

    0caba786256c130d438f34a4c33be95f81894031

  • SHA256

    d8352da4656c47839df161e9dcbb095669f1025cf2f32b175bcad62788365f0d

  • SHA512

    ebff978a59ba8144fc1d107c5dbb0e09f5f75adcff66cfb3f6dfef96510090eed880cefca3e3a7a2513d85dd99c62b7f4d776b5f39295404d36bb88db6428c0c

  • SSDEEP

    786432:7vIFT5OUiF6YF2EiWeIGSg6A3kaa768oRiONllYO9v:7vET5ViF642LWeIGDMS8ENliON

Malware Config

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/sendDocument?chat_id=-1002245526003&caption=%F0%9F%93%82%20-%20Browser%20data%0A%E2%94%9C%E2%94%80%E2%94%80%20%F0%9F%93%82%20-%20cookies(0%20kb

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/sendMessage?chat_id=-1002245526003

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/getUpdates?offset=-

https://api.telegram.org/bot7258239318:AAE_J6DhWLSRk9YOV8l1ienRdy5HsJZuR6I/sendDocument?chat_id=-1002245526003&caption=%F0%9F%93%B8Screenshot%20take

Targets

    • Target

      Build.exe

    • Size

      30.9MB

    • MD5

      d182a5d2f6382d53cce7b46fc60bb7dc

    • SHA1

      0caba786256c130d438f34a4c33be95f81894031

    • SHA256

      d8352da4656c47839df161e9dcbb095669f1025cf2f32b175bcad62788365f0d

    • SHA512

      ebff978a59ba8144fc1d107c5dbb0e09f5f75adcff66cfb3f6dfef96510090eed880cefca3e3a7a2513d85dd99c62b7f4d776b5f39295404d36bb88db6428c0c

    • SSDEEP

      786432:7vIFT5OUiF6YF2EiWeIGSg6A3kaa768oRiONllYO9v:7vET5ViF642LWeIGDMS8ENliON

    • Gurcu, WhiteSnake

      Gurcu is a malware stealer written in C#.

    • MilleniumRat

      MilleniumRat is a remote access trojan written in C#.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Contacts a large (1116) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Stops running service(s)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks