General

  • Target

    0CA57F85E88001EDD67DFF84428375DE282F0F92E5BEF.exe

  • Size

    2.7MB

  • Sample

    220114-w4dqfshge3

  • MD5

    971e01647fbdc05bef3df71b008e2ca6

  • SHA1

    d8122ee820db5d937056c2f1fd0b7bbf89d8b9c1

  • SHA256

    0ca57f85e88001edd67dff84428375de282f0f92e5bef2daed1c03ad2fa7612e

  • SHA512

    89d409d331ea527570584e9d0f76f48b0ad84f6e85ae90a0446c436078d503a10dbf78fa67bbe14a07d05b0c00e0edf81c25e1545ced29d7a72a0ea5aa892780

Malware Config

Extracted

Family

vidar

Version

39.6

Botnet

933

C2

https://sslamlssa1.tumblr.com/

Attributes
  • profile_id

    933

Extracted

Family

redline

Botnet

Cana01

C2

176.111.174.254:56328

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

RUZKI

C2

185.215.113.29:34865

Targets

    • Target

      0CA57F85E88001EDD67DFF84428375DE282F0F92E5BEF.exe

    • Size

      2.7MB

    • MD5

      971e01647fbdc05bef3df71b008e2ca6

    • SHA1

      d8122ee820db5d937056c2f1fd0b7bbf89d8b9c1

    • SHA256

      0ca57f85e88001edd67dff84428375de282f0f92e5bef2daed1c03ad2fa7612e

    • SHA512

      89d409d331ea527570584e9d0f76f48b0ad84f6e85ae90a0446c436078d503a10dbf78fa67bbe14a07d05b0c00e0edf81c25e1545ced29d7a72a0ea5aa892780

    • 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 NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • 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

    • 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 NtSetInformationThreadHideFromDebugger

    • 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

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks