General

  • Target

    Setup.exe

  • Size

    388.5MB

  • Sample

    220622-yrcnqsachm

  • MD5

    9c25f4974604a5f756b5b5ba55c13d38

  • SHA1

    039be44cb40164a48a3ef22f7b9065505822bb0d

  • SHA256

    580f7f0a85ddab4f515ba5d6cf07d05161763bbc46a4ced8e5bc4b0f45ae8a9a

  • SHA512

    36778423d84ad133e71cea556a0d9f67a2144c6f5f1fe0c7d6875f22d61b46f3c5c23351d74e2f65867ecc9ed9b65326ad63c510099b4c68967a21673a8847f6

Malware Config

Extracted

Family

recordbreaker

C2

http://45.67.34.152/

http://45.133.216.249/

Targets

    • Target

      Setup.exe

    • Size

      388.5MB

    • MD5

      9c25f4974604a5f756b5b5ba55c13d38

    • SHA1

      039be44cb40164a48a3ef22f7b9065505822bb0d

    • SHA256

      580f7f0a85ddab4f515ba5d6cf07d05161763bbc46a4ced8e5bc4b0f45ae8a9a

    • SHA512

      36778423d84ad133e71cea556a0d9f67a2144c6f5f1fe0c7d6875f22d61b46f3c5c23351d74e2f65867ecc9ed9b65326ad63c510099b4c68967a21673a8847f6

    • RecordBreaker

      RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.

    • suricata: ET MALWARE Generic .bin download from Dotted Quad

      suricata: ET MALWARE Generic .bin download from Dotted Quad

    • suricata: ET MALWARE Generic Stealer Config Download Request

      suricata: ET MALWARE Generic Stealer Config Download Request

    • suricata: ET MALWARE Recordbreaker Stealer CnC Checkin

      suricata: ET MALWARE Recordbreaker Stealer CnC Checkin

    • 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.

    • 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

    • 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

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks