Overview

overview

10

Static

static

C4Loader.exe

windows7-x64

10

C4Loader.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Loader.rar

  • Size

    65KB

  • Sample

    221107-hsnjmadbf8

  • MD5

    587c269b3da8ecbfb2dd3d2be9082e9e

  • SHA1

    902ddb2dfe24e22cbd0f76131dc1286660b0bbce

  • SHA256

    989619acb386c9775390be42cbf64bc99123fcbf3b53c5a3af23747d2d427f5c

  • SHA512

    4e2c3f736baf3c09660a7568f61d70d9310efbff17ba3efe406f7b7b86d7dd15f521e20a43a566cc288b1b58bfabdca865600c2c437c42e77ca3c761debaad75

  • SSDEEP

    1536:Zq7jqOvmWE9i56xXlSFt4DOpQ2gemaAi9pHRylLp9zr4og:kNvvEW6xqDgeSERqp9M

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

      126KB

    • MD5

      e755b7599fc8b631b954d2d80a3246cb

    • SHA1

      0f557b0b356fc7b5462d252cccd19f93b2cc696a

    • SHA256

      4b8e43a1cee980394eb2845ea6657b376746b84b52bbd3d2ea062cbdfb292d5d

    • SHA512

      426bec87d3c521b99d34813d9953aa7eaebbbebc155056e3fe53f893c8fca7a9ee1c4657c192472c82323470388f1238a994ac6fb54ad3d7f2e42355229e2a7c

    • SSDEEP

      3072:AWrLpduTeRflPTgZv6NV5GqZdPAxusJt6fgMvXM0jJ5Y7eyFNeVmlUOL18c:AUL4YpTV4mAxh6fDyFxL18c

    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 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

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks