General

  • Target

    915637a1072e4e16cc3daf13dea54ac0b59dc336fbef0b263c913c3c1d2a275b

  • Size

    138KB

  • Sample

    210828-seaj31b26e

  • MD5

    ca24a0101f62d47bfaae629a9f12f377

  • SHA1

    06d5bf3399e14a18f925e8162f65535645b1aec5

  • SHA256

    915637a1072e4e16cc3daf13dea54ac0b59dc336fbef0b263c913c3c1d2a275b

  • SHA512

    da028084abac67b19b07d289d89c31a6dc39d8329c99878ca3e4dfd0f36cd7b29ad30011f6130279546760445216c57def51318e516ec8bc48d0f71330d524a6

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

      915637a1072e4e16cc3daf13dea54ac0b59dc336fbef0b263c913c3c1d2a275b

    • Size

      138KB

    • MD5

      ca24a0101f62d47bfaae629a9f12f377

    • SHA1

      06d5bf3399e14a18f925e8162f65535645b1aec5

    • SHA256

      915637a1072e4e16cc3daf13dea54ac0b59dc336fbef0b263c913c3c1d2a275b

    • SHA512

      da028084abac67b19b07d289d89c31a6dc39d8329c99878ca3e4dfd0f36cd7b29ad30011f6130279546760445216c57def51318e516ec8bc48d0f71330d524a6

    • 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