General

  • Target

    c27d5340e1fade1919964fe0f2395c92e50074ba37cb731412a25f4671e65459

  • Size

    3.4MB

  • Sample

    220314-rwallsgec5

  • MD5

    bdda44cc37e0f770ed0c0c06f9af5685

  • SHA1

    887aabc5cb4072c4cf50a89d27718936d7d7e420

  • SHA256

    c27d5340e1fade1919964fe0f2395c92e50074ba37cb731412a25f4671e65459

  • SHA512

    41536197a9693604898771b6caf7873450ebfe797d4979d7e93dc2a12267dd00dd173ccf98bc355b7a7de901914aa65461693b4fb902be010f98834ff216d521

Malware Config

Extracted

Family

vidar

Version

39.4

Botnet

933

C2

https://sergeevih43.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

smokeloader

Version

2020

C2

http://conceitosseg.com/upload/

http://integrasidata.com/upload/

http://ozentekstil.com/upload/

http://finbelportal.com/upload/

http://telanganadigital.com/upload/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

Cana

C2

176.111.174.254:56328

Extracted

Family

redline

Botnet

da da

C2

86.107.197.196:63065

Attributes
  • auth_value

    9b1654b30797c210c85bd0890936a5b9

Extracted

Family

redline

Botnet

Ani

C2

detuyaluro.xyz:80

Targets

    • Target

      c27d5340e1fade1919964fe0f2395c92e50074ba37cb731412a25f4671e65459

    • Size

      3.4MB

    • MD5

      bdda44cc37e0f770ed0c0c06f9af5685

    • SHA1

      887aabc5cb4072c4cf50a89d27718936d7d7e420

    • SHA256

      c27d5340e1fade1919964fe0f2395c92e50074ba37cb731412a25f4671e65459

    • SHA512

      41536197a9693604898771b6caf7873450ebfe797d4979d7e93dc2a12267dd00dd173ccf98bc355b7a7de901914aa65461693b4fb902be010f98834ff216d521

    • 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.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Tofsee

      Backdoor/botnet which carries out malicious activities based on commands from a C2 server.

    • 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

    • Creates new service(s)

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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.

    • 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.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

2
T1031

New Service

1
T1050

Privilege Escalation

New Service

1
T1050

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks