Overview

overview

10

Static

static

6775cb86dc...4a.exe

windows7-x64

10

6775cb86dc...4a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    6775cb86dc43ec19a07e28e11fd4612857f3597521ee7cb4364d2379f209b54a

  • Size

    242KB

  • Sample

    221129-j89mgabg86

  • MD5

    1d7cfab4052def6f9a1b448690f5ca25

  • SHA1

    e269a6c8807511cf51b77b72d52fa5baca2e0c84

  • SHA256

    6775cb86dc43ec19a07e28e11fd4612857f3597521ee7cb4364d2379f209b54a

  • SHA512

    178832d0809bda556df38448a3f99da98781491e51ecc66b9e18da4ff75ff243853990c336db2a501075029a7c1fb37810f2dde4bca5b10ac5ce4c93ee781954

  • SSDEEP

    3072:r/dm5M+RbZj7kdWPstJxFWVZBG6Nk82DrYUbNDFDG81tyY4fmEMFj/XSoQgLiIRj:rsytzFWVHX4IUbNDFD+Y4+EUj/agrF5

Score
10/10
metasploitbackdoorevasionpersistencetrojanupx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      6775cb86dc43ec19a07e28e11fd4612857f3597521ee7cb4364d2379f209b54a

    • Size

      242KB

    • MD5

      1d7cfab4052def6f9a1b448690f5ca25

    • SHA1

      e269a6c8807511cf51b77b72d52fa5baca2e0c84

    • SHA256

      6775cb86dc43ec19a07e28e11fd4612857f3597521ee7cb4364d2379f209b54a

    • SHA512

      178832d0809bda556df38448a3f99da98781491e51ecc66b9e18da4ff75ff243853990c336db2a501075029a7c1fb37810f2dde4bca5b10ac5ce4c93ee781954

    • SSDEEP

      3072:r/dm5M+RbZj7kdWPstJxFWVZBG6Nk82DrYUbNDFDG81tyY4fmEMFj/XSoQgLiIRj:rsytzFWVHX4IUbNDFD+Y4+EUj/agrF5

    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