Overview

overview

10

Static

static

C4Loader.exe

windows7-x64

10

C4Loader.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    C4Loader.exe

  • Size

    495KB

  • Sample

    221116-dv7ytsch4z

  • MD5

    e52e99d4ce81f3075dd62ca10f0aba86

  • SHA1

    c0e73bfc58b42bf9e02ea126fa842bc7a128f56b

  • SHA256

    cde83c58766ae18bd516cfa78098c411fd1d0ebff083896f35fc33b10afa0e50

  • SHA512

    b7f735bf1e10723f56f36673a802a4f9dc1986682d95c1038404cbc7f2c1f437bbd2ad056691caa0a2b99b6c3efe180b72224f3a3b43f11eec46491db243be80

  • SSDEEP

    12288:x5z183Z0RwnuD9VHG5m6b+5rPuAaD2H5nKr3:lG0qm6oro2H5nM

Score
10/10
redlinexmrig1evasioninfostealerminerspywareupx

Malware Config

Extracted

Family

redline

Botnet

1

C2

107.182.129.73:21733

Attributes
  • auth_value

    3a5bb0917495b4312d052a0b8977d2bb

Targets

    • Target

      C4Loader.exe

    • Size

      495KB

    • MD5

      e52e99d4ce81f3075dd62ca10f0aba86

    • SHA1

      c0e73bfc58b42bf9e02ea126fa842bc7a128f56b

    • SHA256

      cde83c58766ae18bd516cfa78098c411fd1d0ebff083896f35fc33b10afa0e50

    • SHA512

      b7f735bf1e10723f56f36673a802a4f9dc1986682d95c1038404cbc7f2c1f437bbd2ad056691caa0a2b99b6c3efe180b72224f3a3b43f11eec46491db243be80

    • SSDEEP

      12288:x5z183Z0RwnuD9VHG5m6b+5rPuAaD2H5nKr3:lG0qm6oro2H5nM

    Score
    10/10
    redlinexmrig1evasioninfostealerminerspywareupx

    • Modifies security service

      evasion

    • RedLine

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

      infostealerredline

    • RedLine payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

      minerxmrig

    • XMRig Miner payload

      miner

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Stops running service(s)

      evasion

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Impair Defenses

1
T1562

Scripting

1
T1064

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks