Overview

overview

10

Static

static

b43c132142...9a.exe

windows7-x64

10

b43c132142...9a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b43c132142a8c3e20ad2fcfe136b5dcd00123716f1321f8b65f9d9a96e66579a

  • Size

    256KB

  • Sample

    221130-2y2szscg66

  • MD5

    6d24d4bda984c83dd0251df4eee8e638

  • SHA1

    0c75a51267db81cc040db963c4f4719a9ec2646c

  • SHA256

    b43c132142a8c3e20ad2fcfe136b5dcd00123716f1321f8b65f9d9a96e66579a

  • SHA512

    9472e536c43ca78ab82dfa5432ddf6dc6518eb4e813fb05cc232971437d381ec472670cae98e46b792202140775a3d271111a7eec9fb1f5f1e9a31bd6570ca25

  • SSDEEP

    6144:FvNDg6ebz88+P85jMwU9rlijgOErSiw3vn:FFDg6efr+P85

Score
10/10
metasploitbackdoorevasionpersistencetrojanupx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      b43c132142a8c3e20ad2fcfe136b5dcd00123716f1321f8b65f9d9a96e66579a

    • Size

      256KB

    • MD5

      6d24d4bda984c83dd0251df4eee8e638

    • SHA1

      0c75a51267db81cc040db963c4f4719a9ec2646c

    • SHA256

      b43c132142a8c3e20ad2fcfe136b5dcd00123716f1321f8b65f9d9a96e66579a

    • SHA512

      9472e536c43ca78ab82dfa5432ddf6dc6518eb4e813fb05cc232971437d381ec472670cae98e46b792202140775a3d271111a7eec9fb1f5f1e9a31bd6570ca25

    • SSDEEP

      6144:FvNDg6ebz88+P85jMwU9rlijgOErSiw3vn:FFDg6efr+P85

    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