General

  • Target

    flstudio_patch_20.9.1.2826.exe

  • Size

    8.2MB

  • Sample

    220324-zap36sagbr

  • MD5

    3bc0439ff61f4c83cad707ad12824ab6

  • SHA1

    3a7ec6ec46f802cab509ae01adcd3eb6b388c693

  • SHA256

    f126b9afa2cd5cd134137374f5ed9f8831ffe9816f25fa06f706c4e4701a22f1

  • SHA512

    778ce6e574a5263fe70dab718f29502ea7a114cf428a8c7d21c48d16f0fbef66f844185b51360ef10f210c383e7a6a5fae946a0a6adea79ade4ada491d507f1d

Malware Config

Extracted

Family

redline

Botnet

1137502411

C2

193.232.179.34:20856

Attributes
  • auth_value

    bf80dce2076c6f3cb9ed05b510f4060e

Targets

    • Target

      flstudio_patch_20.9.1.2826.exe

    • Size

      8.2MB

    • MD5

      3bc0439ff61f4c83cad707ad12824ab6

    • SHA1

      3a7ec6ec46f802cab509ae01adcd3eb6b388c693

    • SHA256

      f126b9afa2cd5cd134137374f5ed9f8831ffe9816f25fa06f706c4e4701a22f1

    • SHA512

      778ce6e574a5263fe70dab718f29502ea7a114cf428a8c7d21c48d16f0fbef66f844185b51360ef10f210c383e7a6a5fae946a0a6adea79ade4ada491d507f1d

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

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

    • XMRig Miner Payload

    • 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.

    • Drops startup file

    • 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

    • 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

Install Root Certificate

1
T1130

Modify Registry

1
T1112

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