General

  • Target

    c436c42e07c1c93c8aeb48b35b51a4a9.exe

  • Size

    2.5MB

  • Sample

    211216-kw6wgsbfc5

  • MD5

    c436c42e07c1c93c8aeb48b35b51a4a9

  • SHA1

    4ecb0d749df3b76e6fd367bb8cf7fdc2b50a8b26

  • SHA256

    d24441e5bb3497db8f6c39a3579b1415efa467e18308f1f9dff228d721b0bdde

  • SHA512

    8f825fb4799a12908c36fec6ee9c6198a139ef40da7e074df8496cd89cf0bbf1221abfea3c0ad90ca88de7a59931a16250c89490600b0dce351ca574ecd145f0

Malware Config

Targets

    • Target

      c436c42e07c1c93c8aeb48b35b51a4a9.exe

    • Size

      2.5MB

    • MD5

      c436c42e07c1c93c8aeb48b35b51a4a9

    • SHA1

      4ecb0d749df3b76e6fd367bb8cf7fdc2b50a8b26

    • SHA256

      d24441e5bb3497db8f6c39a3579b1415efa467e18308f1f9dff228d721b0bdde

    • SHA512

      8f825fb4799a12908c36fec6ee9c6198a139ef40da7e074df8496cd89cf0bbf1221abfea3c0ad90ca88de7a59931a16250c89490600b0dce351ca574ecd145f0

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

    • Blocklisted process makes network request

    • Checks BIOS information in registry

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • 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

1
T1497

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Command and Control

Web Service

1
T1102

Tasks