Overview

overview

10

Static

static

b4c75cde14...37.exe

windows7-x64

10

b4c75cde14...37.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b4c75cde1442704ad67e162fdd087f7b6d0680cd2e349e4a5665e0a948390637

  • Size

    237KB

  • Sample

    221203-hq3wjadf76

  • MD5

    e8840fbf9dc879cdf2646d9732aaf4fb

  • SHA1

    b4b9f15c9a97b318aa3ee624704621286610f73d

  • SHA256

    b4c75cde1442704ad67e162fdd087f7b6d0680cd2e349e4a5665e0a948390637

  • SHA512

    7658a51b5baff89ca68fc0f3defa36ffd2db217dcc7234e292c0cc2fbaa0cf7538b07592820f3f83417c93e46294807876c287b127441488db1a55fa488a099e

  • SSDEEP

    3072:eGSriql1GY0iYCN/kkSophVyPb4/zS5DG5OUZ0Twff+Zuw8WyL+u:WWyT0qkxophPpfZ02

Score
10/10
metasploitbackdoorevasionpersistencetrojanupx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      b4c75cde1442704ad67e162fdd087f7b6d0680cd2e349e4a5665e0a948390637

    • Size

      237KB

    • MD5

      e8840fbf9dc879cdf2646d9732aaf4fb

    • SHA1

      b4b9f15c9a97b318aa3ee624704621286610f73d

    • SHA256

      b4c75cde1442704ad67e162fdd087f7b6d0680cd2e349e4a5665e0a948390637

    • SHA512

      7658a51b5baff89ca68fc0f3defa36ffd2db217dcc7234e292c0cc2fbaa0cf7538b07592820f3f83417c93e46294807876c287b127441488db1a55fa488a099e

    • SSDEEP

      3072:eGSriql1GY0iYCN/kkSophVyPb4/zS5DG5OUZ0Twff+Zuw8WyL+u:WWyT0qkxophPpfZ02

    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