General

  • Target

    55e788f23b3718f91aa46cdbe8644de359dab1769250a60ed97ca2e1a8616122

  • Size

    625KB

  • Sample

    230604-tnbvtacf58

  • MD5

    44e88dc70834e6a94ebadcb8e0ddf78f

  • SHA1

    6561c8ca5f480edfe4ed60f4c06567e0dfc00088

  • SHA256

    55e788f23b3718f91aa46cdbe8644de359dab1769250a60ed97ca2e1a8616122

  • SHA512

    6c1338e981a7c870f56a51d863864e5f45b777f2e89dcf42a809cbda69a41374ff156c73f715d3e0103f476c7c70f66c106b5606bc974ef43277421f7594384c

  • SSDEEP

    12288:NMrDy90gGzkk0af0R3nuK6PmZzAZpJIBtuojc3R/hPLrQspilRK4ANq:qyo6qOWeZzAZ0ZQB/hPXNwlRK4Yq

Malware Config

Extracted

Family

redline

Botnet

dusa

C2

83.97.73.126:19046

Attributes
  • auth_value

    ee896466545fedf9de5406175fb82de5

Extracted

Family

redline

Botnet

brain

C2

83.97.73.126:19046

Attributes
  • auth_value

    5fb8269baadec0c49899b9a7a0c8851f

Targets

    • Target

      55e788f23b3718f91aa46cdbe8644de359dab1769250a60ed97ca2e1a8616122

    • Size

      625KB

    • MD5

      44e88dc70834e6a94ebadcb8e0ddf78f

    • SHA1

      6561c8ca5f480edfe4ed60f4c06567e0dfc00088

    • SHA256

      55e788f23b3718f91aa46cdbe8644de359dab1769250a60ed97ca2e1a8616122

    • SHA512

      6c1338e981a7c870f56a51d863864e5f45b777f2e89dcf42a809cbda69a41374ff156c73f715d3e0103f476c7c70f66c106b5606bc974ef43277421f7594384c

    • SSDEEP

      12288:NMrDy90gGzkk0af0R3nuK6PmZzAZpJIBtuojc3R/hPLrQspilRK4ANq:qyo6qOWeZzAZ0ZQB/hPXNwlRK4Yq

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Tasks