General

  • Target

    Password_is_5432764372___Adobe-Photoshop.exe

  • Size

    27.6MB

  • Sample

    211023-v1pg4scdd4

  • MD5

    85fc603eb185b9ede6ce8b819554f7d8

  • SHA1

    a90a7830852936c7dc89f39616e70a0e004fa664

  • SHA256

    6318be892d092976958575601b5693dea00125d9c6f67df89a722fd4e7f8c1f6

  • SHA512

    909e7404759153b44a6e8583709b4211dab000c5747b5f5f044b17c122f44ae1ec8880d1e4afb209ee2838bab0a22c91014203b7c11eb54cc61d03eeb141d3b4

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://directorycart.com/upload/

http://tierzahnarzt.at/upload/

http://streetofcards.com/upload/

http://ycdfzd.com/upload/

http://successcoachceo.com/upload/

http://uhvu.cn/upload/

http://japanarticle.com/upload/

rc4.i32
rc4.i32

Extracted

Family

vidar

Version

41.5

Botnet

933

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    933

Extracted

Family

djvu

C2

http://rlrz.org/lancer

Targets

    • Target

      Password_is_5432764372___Adobe-Photoshop.exe

    • Size

      27.6MB

    • MD5

      85fc603eb185b9ede6ce8b819554f7d8

    • SHA1

      a90a7830852936c7dc89f39616e70a0e004fa664

    • SHA256

      6318be892d092976958575601b5693dea00125d9c6f67df89a722fd4e7f8c1f6

    • SHA512

      909e7404759153b44a6e8583709b4211dab000c5747b5f5f044b17c122f44ae1ec8880d1e4afb209ee2838bab0a22c91014203b7c11eb54cc61d03eeb141d3b4

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • 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

    • Modifies file permissions

    • 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

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

3
T1112

Disabling Security Tools

1
T1089

File Permissions Modification

1
T1222

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