General

  • Target

    b1af9c20593036c476f84527f9144c53.exe

  • Size

    1.4MB

  • Sample

    220128-kpwf6safd2

  • MD5

    b1af9c20593036c476f84527f9144c53

  • SHA1

    d72a110adaa72ee1573661b30960f789c8a43e99

  • SHA256

    e0ae1a565fe7f5951aa98cc3465200e0576932e6bd62f4e562f369016c63dabe

  • SHA512

    2164b7d975f1920e01b9959143970d0066c6c52c581f1f3a10627fdfdd32cae3518575aeb25c469305e7c2dcd86499a530a8720be775d1c0f8f8756914268ac7

Malware Config

Extracted

Family

redline

C2

5.206.227.236:33067

Extracted

Family

redline

Botnet

123

C2

46.3.199.85:4329

Targets

    • Target

      b1af9c20593036c476f84527f9144c53.exe

    • Size

      1.4MB

    • MD5

      b1af9c20593036c476f84527f9144c53

    • SHA1

      d72a110adaa72ee1573661b30960f789c8a43e99

    • SHA256

      e0ae1a565fe7f5951aa98cc3465200e0576932e6bd62f4e562f369016c63dabe

    • SHA512

      2164b7d975f1920e01b9959143970d0066c6c52c581f1f3a10627fdfdd32cae3518575aeb25c469305e7c2dcd86499a530a8720be775d1c0f8f8756914268ac7

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • RedLine Payload

    • 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.

    • 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

    • 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

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks