General

  • Target

    CraxsRat 4.0.1.zip

  • Size

    144.7MB

  • Sample

    230511-y152mscg3t

  • MD5

    8a50e7c45a5e3f997cc5977877905cd4

  • SHA1

    69322ab4e93846603acdf50d778721766ec76515

  • SHA256

    330be9927418eca24b6b0acadec70a2ebcdccfd9b3a7588ef4e707bf85c76502

  • SHA512

    360f6b1aac4648a45b653fb7bd1a91007093ae535e855c043b301240e47cf19f4d78442f080b869a52c62bc3386068afb77b42b8a98349eab780eb39b45d6b14

  • SSDEEP

    3145728:S5mk2EklYF4YYkSO7Wkf9Pb2OE9Mfg9rLrCLVnwXZmYc7qHE:S5mkrMu46SZS9W9MIZL+VwJmLqHE

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

https://rentry.org/nipkv/raw

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.zoho.com
  • Port:
    587
  • Username:
    nexusbuscasg@zohomail.com
  • Password:
    Nescau71#

Targets

    • Target

      CraxsRat 4.0.1.zip

    • Size

      144.7MB

    • MD5

      8a50e7c45a5e3f997cc5977877905cd4

    • SHA1

      69322ab4e93846603acdf50d778721766ec76515

    • SHA256

      330be9927418eca24b6b0acadec70a2ebcdccfd9b3a7588ef4e707bf85c76502

    • SHA512

      360f6b1aac4648a45b653fb7bd1a91007093ae535e855c043b301240e47cf19f4d78442f080b869a52c62bc3386068afb77b42b8a98349eab780eb39b45d6b14

    • SSDEEP

      3145728:S5mk2EklYF4YYkSO7Wkf9Pb2OE9Mfg9rLrCLVnwXZmYc7qHE:S5mkrMu46SZS9W9MIZL+VwJmLqHE

    • HawkEye

      HawkEye is a malware kit that has seen continuous development since at least 2013.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Stops running service(s)

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scripting

1
T1064

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Impair Defenses

1
T1562

Scripting

1
T1064

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks