Overview

overview

10

Static

static

b218513df1...5c.exe

windows7-x64

10

b218513df1...5c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b218513df15724b38ded71d19a51e43f657512b6e960abc093fad4f028a8ae5c

  • Size

    205KB

  • Sample

    221205-kj7l9acd88

  • MD5

    857c66a8c57f4f160f83da8a08809531

  • SHA1

    3321b31c97f63da5a004cb566d654ccfa4fa5b08

  • SHA256

    b218513df15724b38ded71d19a51e43f657512b6e960abc093fad4f028a8ae5c

  • SHA512

    f6fec9e8880102aac18564d3137b7bb34da6cf7715f237739011a34962c655ef64d2847185f9edf2a802a2cf9f833b59f8f3593d2965edd4f839f79ad9ec1195

  • SSDEEP

    3072:jlYKvotj2t6M/cL5LlCImS4dXVn5cilIy6fg8z2sgQ2ScTJUjTwRikEwYiUHW:jyaEj2d/cL58IJ+TZmfgi8UnwEkETHW

Score
10/10
metasploitbackdoorevasionpersistencetrojanupx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      b218513df15724b38ded71d19a51e43f657512b6e960abc093fad4f028a8ae5c

    • Size

      205KB

    • MD5

      857c66a8c57f4f160f83da8a08809531

    • SHA1

      3321b31c97f63da5a004cb566d654ccfa4fa5b08

    • SHA256

      b218513df15724b38ded71d19a51e43f657512b6e960abc093fad4f028a8ae5c

    • SHA512

      f6fec9e8880102aac18564d3137b7bb34da6cf7715f237739011a34962c655ef64d2847185f9edf2a802a2cf9f833b59f8f3593d2965edd4f839f79ad9ec1195

    • SSDEEP

      3072:jlYKvotj2t6M/cL5LlCImS4dXVn5cilIy6fg8z2sgQ2ScTJUjTwRikEwYiUHW:jyaEj2d/cL58IJ+TZmfgi8UnwEkETHW

    Score
    10/10
    metasploitbackdoorevasionpersistencetrojanupx

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

      trojanbackdoormetasploit

    • Modifies firewall policy service

      evasion

    • Executes dropped EXE

    • 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.

    • Deletes itself

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks