General

  • Target

    Cryptded_protected.bin

  • Size

    1.5MB

  • Sample

    220711-pgln8aghgp

  • MD5

    fc24752914e03759c7cc97e560154868

  • SHA1

    9790816345ee7f10a0336f4013864c565c75de89

  • SHA256

    a0de3c7f5026e72496e15c3fcb24947aa54e2d615bed91bc8f44fd07a2553b44

  • SHA512

    7a7082c640fbcb54a9247848dde589258a7182ff2284c166372465f5d7a76ab3ce89cc7d98bba9fab3a670957655e8fb0337cd7f836cc1f88ccfe6aa980f904e

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/963884131157168128/l7y0A3as75Se94o7XMk4zXPVahSSRfUXKz2j0cONgRgga6ZiO0oAtr3nqCmT9TlwHPnJ

Targets

    • Target

      Cryptded_protected.bin

    • Size

      1.5MB

    • MD5

      fc24752914e03759c7cc97e560154868

    • SHA1

      9790816345ee7f10a0336f4013864c565c75de89

    • SHA256

      a0de3c7f5026e72496e15c3fcb24947aa54e2d615bed91bc8f44fd07a2553b44

    • SHA512

      7a7082c640fbcb54a9247848dde589258a7182ff2284c166372465f5d7a76ab3ce89cc7d98bba9fab3a670957655e8fb0337cd7f836cc1f88ccfe6aa980f904e

    • 44Caliber

      An open source infostealer written in C#.

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • Executes dropped EXE

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Deletes itself

    • Drops startup file

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Looks up external IP address via web service

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Data from Local System

2
T1005

Tasks