General

  • Target

    df4aec4fa5881cec4417c8f64ecb2107.exe

  • Size

    3.8MB

  • Sample

    210826-z24pazmebj

  • MD5

    df4aec4fa5881cec4417c8f64ecb2107

  • SHA1

    706a666d7431084ec1220cf4b9940f853e172e65

  • SHA256

    a2f15b4e843483e292e4c2f29cdd09a87081d7f158c0e860c88b211b2ad0a348

  • SHA512

    8e68493bed99680d6a44f90dd5927785c34a9ce2834b15264a76d04dba2d12f56877b7a4bc3a61f7e6623beee41eca4d775d7031dd8192cdf8b58527f61c9838

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

vidar

Version

40.1

Botnet

706

C2

https://eduarroma.tumblr.com/

Attributes
  • profile_id

    706

Extracted

Family

redline

Botnet

pab4

C2

185.215.113.15:61506

Extracted

Family

vidar

Version

40.1

Botnet

937

C2

https://eduarroma.tumblr.com/

Attributes
  • profile_id

    937

Targets

    • Target

      df4aec4fa5881cec4417c8f64ecb2107.exe

    • Size

      3.8MB

    • MD5

      df4aec4fa5881cec4417c8f64ecb2107

    • SHA1

      706a666d7431084ec1220cf4b9940f853e172e65

    • SHA256

      a2f15b4e843483e292e4c2f29cdd09a87081d7f158c0e860c88b211b2ad0a348

    • SHA512

      8e68493bed99680d6a44f90dd5927785c34a9ce2834b15264a76d04dba2d12f56877b7a4bc3a61f7e6623beee41eca4d775d7031dd8192cdf8b58527f61c9838

    • 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.

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    • 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.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Command and Control

Web Service

1
T1102

Tasks