General

  • Target

    99364f88da7a5e99d74b536dade91f5feb795a2db2969e708003ddfd96b0f82e

  • Size

    624KB

  • Sample

    230604-tazdysdc4y

  • MD5

    4e9e3ad0c85a4e6a197afdc8725cf43e

  • SHA1

    d77ad1b6ed764dd36e1edba32a4e4f60cc9944bb

  • SHA256

    99364f88da7a5e99d74b536dade91f5feb795a2db2969e708003ddfd96b0f82e

  • SHA512

    576dc3d9a084a8e09f3a440352efb5a2bc2d1fcd49b0ced7448b6b4c3eeadb367843ac637f6a15d68fcf22702e0218d314ba0a38b76fb7dfc7446530907f57ab

  • SSDEEP

    12288:NMr5y900nxWyOAFTiEoROlYxZN9pUwSbVUdsOcqKi:YyJkmxzlYx/3UWX

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

      99364f88da7a5e99d74b536dade91f5feb795a2db2969e708003ddfd96b0f82e

    • Size

      624KB

    • MD5

      4e9e3ad0c85a4e6a197afdc8725cf43e

    • SHA1

      d77ad1b6ed764dd36e1edba32a4e4f60cc9944bb

    • SHA256

      99364f88da7a5e99d74b536dade91f5feb795a2db2969e708003ddfd96b0f82e

    • SHA512

      576dc3d9a084a8e09f3a440352efb5a2bc2d1fcd49b0ced7448b6b4c3eeadb367843ac637f6a15d68fcf22702e0218d314ba0a38b76fb7dfc7446530907f57ab

    • SSDEEP

      12288:NMr5y900nxWyOAFTiEoROlYxZN9pUwSbVUdsOcqKi:YyJkmxzlYx/3UWX

    • 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