General

  • Target

    04a8ea3cbcbc20c6e9a5e8df1e3adac62f7731aeace1c0681aa9fa3b53a85cdd

  • Size

    48KB

  • Sample

    220129-t1rf2adfcn

  • MD5

    6cacd4748ecedd5c5242ef62a941ecbb

  • SHA1

    1abc42914153674634cc58674c8d4314fbe22188

  • SHA256

    04a8ea3cbcbc20c6e9a5e8df1e3adac62f7731aeace1c0681aa9fa3b53a85cdd

  • SHA512

    a796b796f8b1acb1494e86fda8ac6fcfe6294011cc00b978459e7f3b76006733a4dc6df6b661660413d979d7e72c3f6c0d43e587ec08e718d49a349bc68596ea

Malware Config

Extracted

Family

redline

Botnet

2142468762

C2

45.9.20.40:50162

Targets

    • Target

      04a8ea3cbcbc20c6e9a5e8df1e3adac62f7731aeace1c0681aa9fa3b53a85cdd

    • Size

      48KB

    • MD5

      6cacd4748ecedd5c5242ef62a941ecbb

    • SHA1

      1abc42914153674634cc58674c8d4314fbe22188

    • SHA256

      04a8ea3cbcbc20c6e9a5e8df1e3adac62f7731aeace1c0681aa9fa3b53a85cdd

    • SHA512

      a796b796f8b1acb1494e86fda8ac6fcfe6294011cc00b978459e7f3b76006733a4dc6df6b661660413d979d7e72c3f6c0d43e587ec08e718d49a349bc68596ea

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • RedLine Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

      suricata: ET MALWARE Single char EXE direct download likely trojan (multiple families)

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • 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.

    • 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

    • Adds Run key to start application

    • 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

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks