Overview

overview

10

Static

static

65119209.exe

windows7_x64

10

65119209.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    65119209.exe

  • Size

    5.2MB

  • Sample

    220320-fzvv6shffq

  • MD5

    32c5693987d03d80ea5d7d5632769cb8

  • SHA1

    e8c8a465e6d6912afc99bbdf90cf08363cf184e4

  • SHA256

    5b3608236eb01a9812bc32ca81bf7493c374f854ba7dd40fb422a7ff8b03ed67

  • SHA512

    7948d57c378ed69531ba75059af8a17e5b9c3ee256c5c742d93d9f94c4c438a4845c5df8ab672aaba4ca1b8fdeb155b57b6753e438b3fde47d0490cd8b6ff11a

Score
10/10
44caliberxmrigevasionminerpersistencespywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discordapp.com/api/webhooks/934716186313240606/NIuB64dK4IPafrX9FRy2wNNRrBnOxvdLjio6Ou2fEKxC9HrdYgZQcnvkOx-a4O9pNzdW

Targets

    • Target

      65119209.exe

    • Size

      5.2MB

    • MD5

      32c5693987d03d80ea5d7d5632769cb8

    • SHA1

      e8c8a465e6d6912afc99bbdf90cf08363cf184e4

    • SHA256

      5b3608236eb01a9812bc32ca81bf7493c374f854ba7dd40fb422a7ff8b03ed67

    • SHA512

      7948d57c378ed69531ba75059af8a17e5b9c3ee256c5c742d93d9f94c4c438a4845c5df8ab672aaba4ca1b8fdeb155b57b6753e438b3fde47d0490cd8b6ff11a

    Score
    10/10
    44caliberxmrigevasionminerpersistencespywarestealer

    • 44Caliber

      An open source infostealer written in C#.

      stealer44caliber

    • xmrig

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

      minerxmrig

    • XMRig Miner Payload

      miner

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • 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.

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • 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

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Tasks