General

  • Target

    05434e326da912f5c6e1bb50a767d6dd16b27ff407b007cafd7d96d0daac1eea

  • Size

    304KB

  • Sample

    220521-rbwcksheg5

  • MD5

    1044868882af2d4362480dcf0c918c3b

  • SHA1

    277439cf62cdfedb2bdd03eeb04868b812556aa2

  • SHA256

    05434e326da912f5c6e1bb50a767d6dd16b27ff407b007cafd7d96d0daac1eea

  • SHA512

    d504e11382f7d84a593e73826489ba56b706e59ab75ac559e35ddacfca6f1e187729adf1c0349ff4c5414200effe2d2b9368b43afef25062cd8d86c1e1c73155

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

      05434e326da912f5c6e1bb50a767d6dd16b27ff407b007cafd7d96d0daac1eea

    • Size

      304KB

    • MD5

      1044868882af2d4362480dcf0c918c3b

    • SHA1

      277439cf62cdfedb2bdd03eeb04868b812556aa2

    • SHA256

      05434e326da912f5c6e1bb50a767d6dd16b27ff407b007cafd7d96d0daac1eea

    • SHA512

      d504e11382f7d84a593e73826489ba56b706e59ab75ac559e35ddacfca6f1e187729adf1c0349ff4c5414200effe2d2b9368b43afef25062cd8d86c1e1c73155

    • 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.

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • 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

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Email Collection

1
T1114

Tasks