General

  • Target

    2c90a2690b0f9e9b93cf115053b044da398b60e447dbcf8cefff9b3b21a8a78f

  • Size

    139KB

  • Sample

    210828-2hxtyzfh5e

  • MD5

    cb4acc8a48d2401094cb44d14c6aaf91

  • SHA1

    98681625962ccde0922b9b07c16c56c3ca9fc6db

  • SHA256

    2c90a2690b0f9e9b93cf115053b044da398b60e447dbcf8cefff9b3b21a8a78f

  • SHA512

    ceada4a8075f676a2a56e56191076a430d61149395cc3595df43b3414ab05f040f764e87ff990885be10c2eda0fcb95876cf923f3e1cc2680f538eb65a7c5061

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/

http://statisticblogpack.xyz/data/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

hello

C2

80.66.87.33:36976

Targets

    • Target

      2c90a2690b0f9e9b93cf115053b044da398b60e447dbcf8cefff9b3b21a8a78f

    • Size

      139KB

    • MD5

      cb4acc8a48d2401094cb44d14c6aaf91

    • SHA1

      98681625962ccde0922b9b07c16c56c3ca9fc6db

    • SHA256

      2c90a2690b0f9e9b93cf115053b044da398b60e447dbcf8cefff9b3b21a8a78f

    • SHA512

      ceada4a8075f676a2a56e56191076a430d61149395cc3595df43b3414ab05f040f764e87ff990885be10c2eda0fcb95876cf923f3e1cc2680f538eb65a7c5061

    • 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