Overview

overview

10

Static

static

CHECKRA1N/...1N.exe

windows7-x64

10

CHECKRA1N/...1N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    CHECKRA1N.rar

  • Size

    17.1MB

  • Sample

    220926-xdklrabgb9

  • MD5

    8aefa0524a8d9150db75eff22d4c7f25

  • SHA1

    cc2aebd259e7b676a7dfd6a2850f93db1f2b439c

  • SHA256

    2ba8c1354aca93d81429af2c1e139427473d1e7a494b609a307742c49426e7e1

  • SHA512

    0fdaa41dbe99b214876b14dd1e8fcaba5a0d752a6f0c2eaa5fb3722d835d9abf41ddbc1602570287444285de6642d19f49e2f2e8f224afc3839920e3cb289801

  • SSDEEP

    393216:0y99GQZ6dgfLBQCnaSE0bZ4kKwf1rzBVg4qgudQQm+jEA:0s9LZ6dgzBznaSEPdi/tzRA

Score
10/10
xmrigevasionminerspywarestealerupx

Malware Config

Targets

    • Target

      CHECKRA1N/CHECKRA1N.exe

    • Size

      681.1MB

    • MD5

      f57c9332808a063901254cd41eef7613

    • SHA1

      67df58792e9a9d3c3d00e39753873fcf6ef2ae5f

    • SHA256

      2b50d8d9acaab4c8679d87d37dda1e97464e3bdbb00c942277c58d7532098a50

    • SHA512

      e032ca3899a93170f8a3e2d4be32deb66f21c5de02fc9f453bfd3709c0f54ff5eb75db58777ca1565dd57632b7c125de776b69737e8554761e1e15fd3b98e0eb

    • SSDEEP

      393216:zKAhcUJ09+imj7+mmFygBWbln6eqOBZC517HNohLBn5Iv/vQ:2O090j7nmFVWhn/qOB8JiaQ

    Score
    10/10
    spywarestealerxmrigevasionminerupx

    • Modifies security service

      evasion

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • xmrig

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

      minerxmrig

    • XMRig Miner payload

      miner

    • 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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

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

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Service Stop

1
T1489

Tasks