Resubmissions

19-10-2021 08:05

211019-jyy3zsgcem 10

18-10-2021 18:38

211018-w97wgsecc3 10

General

  • Target

    Setup.exe

  • Size

    425KB

  • Sample

    211018-w97wgsecc3

  • MD5

    93d44fa2ceefa5dab55b3b4d89c5c3de

  • SHA1

    5af7a4e78c39b15e8d94a6c8ea247c96734ecca5

  • SHA256

    8bd004298abd06e9e01067f14ca55f5d5cc899c37fc03c7b0cc3eb6702c84437

  • SHA512

    b481bbf8551a9d56e8161b15661ab6c08f5d024f8ccb0e842d1d2db82f80a401dd8ed3892fa8a917dcddb198c91bd5eca678093ff1b263a2194d4cc47ec65977

Malware Config

Extracted

Family

redline

Botnet

5

C2

178.23.190.135:25442

Extracted

Family

vidar

Version

41.5

Botnet

937

C2

https://mas.to/@xeroxxx

Attributes
  • profile_id

    937

Extracted

Family

redline

Botnet

01

C2

176.57.71.68:37814

Extracted

Family

redline

Botnet

Proliv2

C2

176.57.71.68:37814

Extracted

Family

redline

Botnet

@pankoka

C2

185.244.217.166:56316

Extracted

Family

smokeloader

Version

2020

C2

http://honawey7.top/

http://wijibui0.top/

http://hefahei6.top/

http://pipevai4.top/

http://nalirou7.top/

rc4.i32
rc4.i32

Targets

    • Target

      Setup.exe

    • Size

      425KB

    • MD5

      93d44fa2ceefa5dab55b3b4d89c5c3de

    • SHA1

      5af7a4e78c39b15e8d94a6c8ea247c96734ecca5

    • SHA256

      8bd004298abd06e9e01067f14ca55f5d5cc899c37fc03c7b0cc3eb6702c84437

    • SHA512

      b481bbf8551a9d56e8161b15661ab6c08f5d024f8ccb0e842d1d2db82f80a401dd8ed3892fa8a917dcddb198c91bd5eca678093ff1b263a2194d4cc47ec65977

    • Modifies Windows Defender Real-time Protection settings

    • 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.

    • Socelars

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

    • Socelars Payload

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Vidar Stealer

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Sets service image path in registry

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • 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.

    • Checks installed software on the system

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

    • Checks whether UAC is enabled

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

5
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks