General

  • Target

    B9BA3633E6AE613C553BB7311AFFB973B5D3C5F41DE5A.exe

  • Size

    6.3MB

  • Sample

    220608-x9hf9saae5

  • MD5

    18744d81b074ea24f489b58b430b7d9c

  • SHA1

    d36bf939a4cf6ed710ff083306b8e3e20ed9e437

  • SHA256

    b9ba3633e6ae613c553bb7311affb973b5d3c5f41de5a9e5f1b048cb2cda8a34

  • SHA512

    442936e022d224af2439fe66c88bd8b0cbd322d4070468eee4da91b1dc48360553fdb7a3bc6ef6a1da595931f607b79eb7a5fb10ea68431f19a3f1ff081422d1

Malware Config

Extracted

Family

socelars

C2

http://www.iyiqian.com/

http://www.hbgents.top/

http://www.rsnzhy.com/

http://www.efxety.top/

Extracted

Family

redline

Botnet

media26

C2

91.121.67.60:23325

Attributes
  • auth_value

    e37d5065561884bb54c8ed1baa6de446

Extracted

Family

redline

Botnet

pub2

C2

185.215.113.46:80

Attributes
  • auth_value

    4a9525ed658ab62eaade23fdc4f4da23

Extracted

Family

redline

Botnet

chris

C2

194.104.136.5:46013

Attributes
  • auth_value

    9491a1c5e11eb6097e68a4fa8627fda8

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .rrcc

  • offline_id

    k2oZMtQS0H2U97b2eKTMJpROwYzEzq6KcWbdOut1

  • payload_url

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

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

  • ransomnote

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rsa_pubkey.plain

Targets

    • Target

      B9BA3633E6AE613C553BB7311AFFB973B5D3C5F41DE5A.exe

    • Size

      6.3MB

    • MD5

      18744d81b074ea24f489b58b430b7d9c

    • SHA1

      d36bf939a4cf6ed710ff083306b8e3e20ed9e437

    • SHA256

      b9ba3633e6ae613c553bb7311affb973b5d3c5f41de5a9e5f1b048cb2cda8a34

    • SHA512

      442936e022d224af2439fe66c88bd8b0cbd322d4070468eee4da91b1dc48360553fdb7a3bc6ef6a1da595931f607b79eb7a5fb10ea68431f19a3f1ff081422d1

    • 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

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • suricata: ET MALWARE Observed Zingo/GinzoStealer CnC Domain (nominally .ru in TLS SNI)

      suricata: ET MALWARE Observed Zingo/GinzoStealer CnC Domain (nominally .ru in TLS SNI)

    • suricata: ET MALWARE Possible Zeus GameOver/FluBot Related DGA NXDOMAIN Responses

      suricata: ET MALWARE Possible Zeus GameOver/FluBot Related DGA NXDOMAIN Responses

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

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

    • OnlyLogger Payload

    • 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

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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.

    • Looks up geolocation information via web service

      Uses a legitimate geolocation service to find the infected system's geolocation info.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

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

3
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