General

  • Target

    Setup_5.exe

  • Size

    371.5MB

  • Sample

    220727-x4nq4aggcq

  • MD5

    a0e4befbfe2622bdce245bd8eb19601e

  • SHA1

    5f8798d2691e2a367a673c568668c3799eed63f6

  • SHA256

    da99f78d0bbddb84823b7d7383a89a8a97211fa9eac24c8e9ebd1813a5899522

  • SHA512

    d91583b1aff4e90d1b0b3bd9a346cbdd52b2f88b241848f821d6f2d566580e58c79eb7be497424f4d3e6635078de9ee408d85d600f2ab44ba285fe8c75d125bd

Malware Config

Targets

    • Target

      Setup_5.exe

    • Size

      371.5MB

    • MD5

      a0e4befbfe2622bdce245bd8eb19601e

    • SHA1

      5f8798d2691e2a367a673c568668c3799eed63f6

    • SHA256

      da99f78d0bbddb84823b7d7383a89a8a97211fa9eac24c8e9ebd1813a5899522

    • SHA512

      d91583b1aff4e90d1b0b3bd9a346cbdd52b2f88b241848f821d6f2d566580e58c79eb7be497424f4d3e6635078de9ee408d85d600f2ab44ba285fe8c75d125bd

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

    • Downloads MZ/PE file

    • 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.

    • 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 2FA software files, possible credential harvesting

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

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

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

3
T1005

Tasks