General

  • Target

    feffb56578f598490d64289e16a037ac37c3d46f1df41a4013a6dcef225d7e80

  • Size

    3.4MB

  • Sample

    230328-ff255sag7v

  • MD5

    04038a698d34f3dc35b7a3b2ac11678f

  • SHA1

    cda7057d389738aa8da47dff465cb377b94ccfc2

  • SHA256

    feffb56578f598490d64289e16a037ac37c3d46f1df41a4013a6dcef225d7e80

  • SHA512

    07bee3ddc4a8abddb90d685e812838a067e4ae15b0b5b6b765c850fae4bb6bbc552fbff9060413e726f9790a033f42a5c38aa6ab1dc9779df664310867018d2d

  • SSDEEP

    98304:wJuR21C/yIq/dhl/O4i/TksjdFwvhzjMSwRVq:w8D/yIqlhlW4i/QsnwZzjMSeVq

Malware Config

Targets

    • Target

      feffb56578f598490d64289e16a037ac37c3d46f1df41a4013a6dcef225d7e80

    • Size

      3.4MB

    • MD5

      04038a698d34f3dc35b7a3b2ac11678f

    • SHA1

      cda7057d389738aa8da47dff465cb377b94ccfc2

    • SHA256

      feffb56578f598490d64289e16a037ac37c3d46f1df41a4013a6dcef225d7e80

    • SHA512

      07bee3ddc4a8abddb90d685e812838a067e4ae15b0b5b6b765c850fae4bb6bbc552fbff9060413e726f9790a033f42a5c38aa6ab1dc9779df664310867018d2d

    • SSDEEP

      98304:wJuR21C/yIq/dhl/O4i/TksjdFwvhzjMSwRVq:w8D/yIqlhlW4i/QsnwZzjMSeVq

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

    • Checks BIOS information in registry

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

    • Executes dropped EXE

    • Modifies file permissions

    • UPX packed file

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

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Tasks