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

    451KB

  • Sample

    221117-cskvvade45

  • MD5

    cdbca9a8dd98f51b9a2ec30da4fd39c9

  • SHA1

    69255689f3f6d28bdfa2dc950c1f92e92c73fbf6

  • SHA256

    dbdae8b74ecf716b765098a448ca5a64b9b36230a0a1fbd43917daa6ddef4af9

  • SHA512

    4b5f1e1709168725e393814de487e776450f38c994ff12bc203339901c5461b0615772a71db4f38d34924a1890231773fee40f059b34fc10c90b826846f6cf36

  • SSDEEP

    6144:YhmemwrQ7Qmfsfiv9gMu7w1arWFiUA84PobE+1L9/Kk5KJuqpFeJHxc:YLVrQLsfQgMu7w1ayFiU9CIGpJuqpOC

Score
10/10
redline1evasioninfostealerspyware

Malware Config

Extracted

Family

redline

Botnet

1

C2

107.182.129.73:21733

Attributes
  • auth_value

    3a5bb0917495b4312d052a0b8977d2bb

Targets

    • Target

      C4Loader.exe

    • Size

      451KB

    • MD5

      cdbca9a8dd98f51b9a2ec30da4fd39c9

    • SHA1

      69255689f3f6d28bdfa2dc950c1f92e92c73fbf6

    • SHA256

      dbdae8b74ecf716b765098a448ca5a64b9b36230a0a1fbd43917daa6ddef4af9

    • SHA512

      4b5f1e1709168725e393814de487e776450f38c994ff12bc203339901c5461b0615772a71db4f38d34924a1890231773fee40f059b34fc10c90b826846f6cf36

    • SSDEEP

      6144:YhmemwrQ7Qmfsfiv9gMu7w1arWFiUA84PobE+1L9/Kk5KJuqpFeJHxc:YLVrQLsfQgMu7w1ayFiU9CIGpJuqpOC

    Score
    10/10
    redline1evasioninfostealerspyware

    • 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 NtCreateUserProcessOtherParentProcess

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Stops running service(s)

      evasion

    • 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

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks