General

  • Target

    a32a8a73376011de007c1fff66b6f5535a60df9ab22cbfaafc90784765f11e1b

  • Size

    2.5MB

  • Sample

    220215-jcrf1scce5

  • MD5

    a1f11a6043e639a2efc7b229a04be7e5

  • SHA1

    ec81bf43d8bcf36061a60f7ea4bd8b3a2337a251

  • SHA256

    a32a8a73376011de007c1fff66b6f5535a60df9ab22cbfaafc90784765f11e1b

  • SHA512

    fd8e8aecb53cdf74f5587452de8dfaea3438374aca95964d7939f9d9b96412b844044991663ad5e8079453cf11bbadd927e0cf12d366a7c36d2a6df8d4391b91

Malware Config

Targets

    • Target

      a32a8a73376011de007c1fff66b6f5535a60df9ab22cbfaafc90784765f11e1b

    • Size

      2.5MB

    • MD5

      a1f11a6043e639a2efc7b229a04be7e5

    • SHA1

      ec81bf43d8bcf36061a60f7ea4bd8b3a2337a251

    • SHA256

      a32a8a73376011de007c1fff66b6f5535a60df9ab22cbfaafc90784765f11e1b

    • SHA512

      fd8e8aecb53cdf74f5587452de8dfaea3438374aca95964d7939f9d9b96412b844044991663ad5e8079453cf11bbadd927e0cf12d366a7c36d2a6df8d4391b91

    • 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.

    • Checks computer location settings

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

    • 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

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Command and Control

Web Service

1
T1102

Tasks