General

  • Target

    d8b7d5519c9f9d03ffae68df1c5b87670a842fc8e7056fbddd8e5cabc96be75a

  • Size

    3.0MB

  • Sample

    220314-cwpm7seadn

  • MD5

    0a9310d6306dbda10a3e9893509fb042

  • SHA1

    1f1dddceb7a0917f39ff7d6c8a99298c31a75c44

  • SHA256

    d8b7d5519c9f9d03ffae68df1c5b87670a842fc8e7056fbddd8e5cabc96be75a

  • SHA512

    dba282edf04e40166522e2485af4623390d1e6e82bdc354a70e2afaf85f7bd7389e7a1560e68c1aa4ccdd4fa03f2c4af7f4778678792b301ec56496f5a065968

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

933

C2

https://sslamlssa1.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

ruzki000

C2

86.107.197.196:63065

Attributes
  • auth_value

    80fac7f67bd38aa709bbeef7a44ccb47

Extracted

Family

redline

Botnet

ruzki12_03

C2

176.122.23.55:11768

Attributes
  • auth_value

    c51ddc8008e8581a01cec6e8291c5530

Extracted

Family

redline

Botnet

pizzadlyashekera

C2

65.108.101.231:14648

Attributes
  • auth_value

    7d6b3cb15fc835e113d8c22bd7cfe2b4

Extracted

Family

redline

Botnet

ruz876

C2

185.215.113.7:5186

Attributes
  • auth_value

    4750f6742a496bbe74a981d51e7680ad

Extracted

Family

redline

Botnet

Installs

C2

94.23.1.92:12857

Attributes
  • auth_value

    c8e146507a5c0004dfcc77a7c5f15bc2

Extracted

Family

redline

Botnet

@ywqmre

C2

185.215.113.24:15994

Attributes
  • auth_value

    5a482aa0be2b5e01649fe7a3ce943422

Extracted

Family

djvu

C2

http://fuyt.org/test3/get.php

Attributes
  • extension

    .xcbg

  • offline_id

    y6oQcfhmSRc7ZQ1q8yjLE3LhY8kK7FHg6LLlEht1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://fuyt.org/files/1/build3.exe

  • ransomnote

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rsa_pubkey.plain

Targets

    • Target

      d8b7d5519c9f9d03ffae68df1c5b87670a842fc8e7056fbddd8e5cabc96be75a

    • Size

      3.0MB

    • MD5

      0a9310d6306dbda10a3e9893509fb042

    • SHA1

      1f1dddceb7a0917f39ff7d6c8a99298c31a75c44

    • SHA256

      d8b7d5519c9f9d03ffae68df1c5b87670a842fc8e7056fbddd8e5cabc96be75a

    • SHA512

      dba282edf04e40166522e2485af4623390d1e6e82bdc354a70e2afaf85f7bd7389e7a1560e68c1aa4ccdd4fa03f2c4af7f4778678792b301ec56496f5a065968

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Modifies Windows Defender Real-time Protection settings

    • OnlyLogger

      A tiny loader that uses IPLogger to get its payload.

    • 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.

    • suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious

      suricata: ET MALWARE EXE Download Request To Wordpress Folder Likely Malicious

    • suricata: ET MALWARE GCleaner Downloader Activity M5

      suricata: ET MALWARE GCleaner Downloader Activity M5

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

    • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

      suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

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

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

    • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

      suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

      suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    • suricata: ET MALWARE Win32.Raccoon Stealer - Telegram Mirror Checkin (generic)

      suricata: ET MALWARE Win32.Raccoon Stealer - Telegram Mirror Checkin (generic)

    • suricata: ET MALWARE Win32.Raccoon Stealer Checkin M6

      suricata: ET MALWARE Win32.Raccoon Stealer Checkin M6

    • suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

      suricata: ET MALWARE Win32/Spy.Socelars.S CnC Activity M3

    • OnlyLogger Payload

    • 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.

    • Adds Run key to start application

    • 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

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

Modify Registry

3
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

Process Discovery

1
T1057

Collection

Data from Local System

1
T1005

Tasks