General

  • Target

    file.exe

  • Size

    137KB

  • Sample

    221017-sma2fscdbr

  • MD5

    3e7476424f53cb86bde748a440f853a6

  • SHA1

    8b5a86f7005196149a662df06ee7767be6bd403f

  • SHA256

    88f86bd0c315b807570a8330266fe9c8f04f04cef5c06de8f9f82eda57f10531

  • SHA512

    09b9b8f7343f74023e3978d6adf9e5d0d4704e0e025c8f7810584b1a35eb668ca1b2ea00478576160e2c59ccd27cd96c6afa2c8970718c236d0aa37dd527a77c

  • SSDEEP

    3072:1YO/ZMTFzTDYI7TGDyJWLpVvDFToRPXhuSSYv:1YMZMBzTDY0ayJWX6pXh

Malware Config

Extracted

Family

redline

Botnet

1

C2

80.76.51.172:19241

Attributes
  • auth_value

    4b711fa6f9a5187b40500266349c0baf

Targets

    • Target

      file.exe

    • Size

      137KB

    • MD5

      3e7476424f53cb86bde748a440f853a6

    • SHA1

      8b5a86f7005196149a662df06ee7767be6bd403f

    • SHA256

      88f86bd0c315b807570a8330266fe9c8f04f04cef5c06de8f9f82eda57f10531

    • SHA512

      09b9b8f7343f74023e3978d6adf9e5d0d4704e0e025c8f7810584b1a35eb668ca1b2ea00478576160e2c59ccd27cd96c6afa2c8970718c236d0aa37dd527a77c

    • SSDEEP

      3072:1YO/ZMTFzTDYI7TGDyJWLpVvDFToRPXhuSSYv:1YMZMBzTDY0ayJWX6pXh

    • 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.

    • 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

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