General

  • Target

    a2330ba45df8bc98fc43386911fa3e3d.exe

  • Size

    3.3MB

  • Sample

    210911-j29znaecfl

  • MD5

    a2330ba45df8bc98fc43386911fa3e3d

  • SHA1

    9c3187a2813eb24a97fa18ec53c1ffd8037db061

  • SHA256

    c7ca056b4243185dc09bb3d0af624cf7db75928ea2314410007e1cf191c784e4

  • SHA512

    8ea72c344b9ea1f13c2d468873dd5fa7f6765818b9ed022b8bd34219421caa1ed8e58cfb8fde635cae57463100526d23995187776925a2c4f190400f21ea48cc

Malware Config

Extracted

Family

vidar

Version

40.1

Botnet

706

C2

https://eduarroma.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

smokeloader

Version

2020

C2

http://varmisende.com/upload/

http://fernandomayol.com/upload/

http://nextlytm.com/upload/

http://people4jan.com/upload/

http://asfaltwerk.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

Norman33

C2

195.19.92.158:28743

Extracted

Family

vidar

Version

40.5

Botnet

937

C2

https://gheorghip.tumblr.com/

Attributes
  • profile_id

    937

Extracted

Family

redline

Botnet

test

C2

45.14.49.169:22411

Targets

    • Target

      a2330ba45df8bc98fc43386911fa3e3d.exe

    • Size

      3.3MB

    • MD5

      a2330ba45df8bc98fc43386911fa3e3d

    • SHA1

      9c3187a2813eb24a97fa18ec53c1ffd8037db061

    • SHA256

      c7ca056b4243185dc09bb3d0af624cf7db75928ea2314410007e1cf191c784e4

    • SHA512

      8ea72c344b9ea1f13c2d468873dd5fa7f6765818b9ed022b8bd34219421caa1ed8e58cfb8fde635cae57463100526d23995187776925a2c4f190400f21ea48cc

    • Modifies Windows Defender Real-time Protection settings

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • 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.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar Stealer

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Disabling Security Tools

1
T1089

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks