General

  • Target

    Setup.exe

  • Size

    4.5MB

  • Sample

    201124-1vnx3vw8ma

  • MD5

    6c1376ee49b7f498dbb54a22fa0abe55

  • SHA1

    cd2e6f21e5bc1b856048f12b137047dfa5ce67f7

  • SHA256

    5ac86c67c41dda69959c312d84f64e389314178b7011202987b47dbb31f48a56

  • SHA512

    24c23becf36fda4bda041991ecdb23fd69cb6b391d80cdb3d5d009d3a2e4100c7dc1971115a1d88f693a9c5ef5f780b069b74b7c9b76be31a39d39e785ce5209

Malware Config

Targets

    • Target

      Setup.exe

    • Size

      4.5MB

    • MD5

      6c1376ee49b7f498dbb54a22fa0abe55

    • SHA1

      cd2e6f21e5bc1b856048f12b137047dfa5ce67f7

    • SHA256

      5ac86c67c41dda69959c312d84f64e389314178b7011202987b47dbb31f48a56

    • SHA512

      24c23becf36fda4bda041991ecdb23fd69cb6b391d80cdb3d5d009d3a2e4100c7dc1971115a1d88f693a9c5ef5f780b069b74b7c9b76be31a39d39e785ce5209

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks