General

  • Target

    4e3644b55b755286111e2fb43841ec335b005f88731b738940a968e53ba14d25

  • Size

    1.0MB

  • Sample

    230522-p4lmqsbc6t

  • MD5

    a08e9c0f5ef78f5e273d8042930f1c45

  • SHA1

    3a778ffb377e4fb7e9941e7fe42c31d017b82ffb

  • SHA256

    4e3644b55b755286111e2fb43841ec335b005f88731b738940a968e53ba14d25

  • SHA512

    2048f5393e3023c8ff2d8d630b9a4b29cc2f8bbed093bb0872fa600c078b9bd1757b5839eebb2e8f671df9425828baf693dd8f36b6532b9c4f16d351b10c00b4

  • SSDEEP

    24576:0yNKTghlUnHbvnMNcVqnLro675HBTmN4psc:DagfcANcVyLM6/TmN4ps

Malware Config

Extracted

Family

redline

Botnet

mix

C2

77.91.124.251:19065

Attributes
  • auth_value

    5034ed53489733b1fbaf2777113a7d90

Targets

    • Target

      4e3644b55b755286111e2fb43841ec335b005f88731b738940a968e53ba14d25

    • Size

      1.0MB

    • MD5

      a08e9c0f5ef78f5e273d8042930f1c45

    • SHA1

      3a778ffb377e4fb7e9941e7fe42c31d017b82ffb

    • SHA256

      4e3644b55b755286111e2fb43841ec335b005f88731b738940a968e53ba14d25

    • SHA512

      2048f5393e3023c8ff2d8d630b9a4b29cc2f8bbed093bb0872fa600c078b9bd1757b5839eebb2e8f671df9425828baf693dd8f36b6532b9c4f16d351b10c00b4

    • SSDEEP

      24576:0yNKTghlUnHbvnMNcVqnLro675HBTmN4psc:DagfcANcVyLM6/TmN4ps

    • Modifies Windows Defender Real-time Protection settings

    • RedLine

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

    • RedLine payload

    • 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.

    • Windows security modification

    • 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

3
T1112

Disabling Security Tools

2
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Tasks