General

  • Target

    Setup_4.exe

  • Size

    370.7MB

  • Sample

    220727-x3lv4sggbq

  • MD5

    98d23640b46993f245563f123ba4d0c0

  • SHA1

    47cd004517b2403705edfba3006438ede64375e5

  • SHA256

    6300f59bb2ecfa05d2da11f61cfe0a67f8bc46b33b383621c80a7187cfe6d52a

  • SHA512

    0d9a7ecccd1937dd812d487dbcec17775a6f720b43607fc37979d8c05b1547d46acb1ce34f8416c100a450dc40c388f2c5a6bb65792f87ca64250279b34aedbb

Malware Config

Targets

    • Target

      Setup_4.exe

    • Size

      370.7MB

    • MD5

      98d23640b46993f245563f123ba4d0c0

    • SHA1

      47cd004517b2403705edfba3006438ede64375e5

    • SHA256

      6300f59bb2ecfa05d2da11f61cfe0a67f8bc46b33b383621c80a7187cfe6d52a

    • SHA512

      0d9a7ecccd1937dd812d487dbcec17775a6f720b43607fc37979d8c05b1547d46acb1ce34f8416c100a450dc40c388f2c5a6bb65792f87ca64250279b34aedbb

    • 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