General

  • Target

    b57d0b43e757d20edf267b06160519576b8d0acc8df41c152c0a9d91b7e1018e

  • Size

    303KB

  • Sample

    220521-m6xfxadbe4

  • MD5

    ced18d0a074555e21af53fa202550dad

  • SHA1

    a68547f20e7936600f3cc473015165651ccdde7f

  • SHA256

    b57d0b43e757d20edf267b06160519576b8d0acc8df41c152c0a9d91b7e1018e

  • SHA512

    10b790ab52fa756323654f3bd9f162076e438382cfbe5c9789b36bfeb88b0f42f82e7beffda777d6f5a4f7aaf107373d948ca56de9a1fec49d50d1d86b56544a

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://monsutiur4.com/

http://nusurionuy5ff.at/

http://moroitomo4.net/

http://susuerulianita1.net/

http://cucumbetuturel4.com/

http://nunuslushau.com/

http://linislominyt11.at/

http://luxulixionus.net/

http://lilisjjoer44.com/

http://nikogminut88.at/

http://limo00ruling.org/

http://mini55tunul.com/

http://samnutu11nuli.com/

http://nikogkojam.org/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

1

C2

45.10.43.167:26696

Attributes
  • auth_value

    3a70a3e2f548aaf61e05be9e4cadc7c1

Targets

    • Target

      b57d0b43e757d20edf267b06160519576b8d0acc8df41c152c0a9d91b7e1018e

    • Size

      303KB

    • MD5

      ced18d0a074555e21af53fa202550dad

    • SHA1

      a68547f20e7936600f3cc473015165651ccdde7f

    • SHA256

      b57d0b43e757d20edf267b06160519576b8d0acc8df41c152c0a9d91b7e1018e

    • SHA512

      10b790ab52fa756323654f3bd9f162076e438382cfbe5c9789b36bfeb88b0f42f82e7beffda777d6f5a4f7aaf107373d948ca56de9a1fec49d50d1d86b56544a

    • 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)

    • 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.

    • 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

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Hidden Files and Directories

1
T1158

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks