General

  • Target

    50DA248332E17121AF01CD7929069B7F.fil

  • Size

    7.1MB

  • Sample

    220727-vxgcbsbfd9

  • MD5

    50da248332e17121af01cd7929069b7f

  • SHA1

    0fe37d82a25b11f189fae1469352851a0e6f2a87

  • SHA256

    6254f13144bdddb0931ad447830f9af5281cbb8f6b77c2a1357940762dbc4cc9

  • SHA512

    af35df32c61cd0b3dfdd9ab378fbd12e3e57f28fd6759e7aaaec8f8409a30a66c963a386311b4dea47f050816008acb33f71fbcca275039523a7b938841e0812

Malware Config

Targets

    • Target

      50DA248332E17121AF01CD7929069B7F.fil

    • Size

      7.1MB

    • MD5

      50da248332e17121af01cd7929069b7f

    • SHA1

      0fe37d82a25b11f189fae1469352851a0e6f2a87

    • SHA256

      6254f13144bdddb0931ad447830f9af5281cbb8f6b77c2a1357940762dbc4cc9

    • SHA512

      af35df32c61cd0b3dfdd9ab378fbd12e3e57f28fd6759e7aaaec8f8409a30a66c963a386311b4dea47f050816008acb33f71fbcca275039523a7b938841e0812

    • 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.

    • Checks computer location settings

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

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • 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.

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks