General

  • Target

    549ea4c37d85d6db92fbab591722c548e56e0304225cb10c765f13401bcb610d

  • Size

    139KB

  • Sample

    210828-gql9xsss36

  • MD5

    3920856b15704d142a2d3b6d0e80b79b

  • SHA1

    b76a64d8a7d0b6dd5c0ade901d0b5614170acbba

  • SHA256

    549ea4c37d85d6db92fbab591722c548e56e0304225cb10c765f13401bcb610d

  • SHA512

    b756f37a36f395953ed2fa50a9612467ed7713f321e7de26c2ac4ed0bde51dae946c395546dc8a2cb3d77d2f68e491287f84bea53ad8b04a5a6471ed0890496a

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://aucmoney.com/upload/

http://thegymmum.com/upload/

http://atvcampingtrips.com/upload/

http://kuapakualaman.com/upload/

http://renatazarazua.com/upload/

http://nasufmutlu.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

hello

C2

80.66.87.33:36976

Targets

    • Target

      549ea4c37d85d6db92fbab591722c548e56e0304225cb10c765f13401bcb610d

    • Size

      139KB

    • MD5

      3920856b15704d142a2d3b6d0e80b79b

    • SHA1

      b76a64d8a7d0b6dd5c0ade901d0b5614170acbba

    • SHA256

      549ea4c37d85d6db92fbab591722c548e56e0304225cb10c765f13401bcb610d

    • SHA512

      b756f37a36f395953ed2fa50a9612467ed7713f321e7de26c2ac4ed0bde51dae946c395546dc8a2cb3d77d2f68e491287f84bea53ad8b04a5a6471ed0890496a

    • RedLine

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

    • RedLine Payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • 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.

    • Deletes itself

    • 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

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

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks