Overview

overview

10

Static

static

31c52fec26...df.exe

windows7_x64

10

31c52fec26...df.exe

windows10-2004_x64

8

Sharing

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General

  • Target

    31c52fec2654717cb5b0d04c9fce32b41229af3e13d0507e2518e798f089b6df

  • Size

    146KB

  • Sample

    220620-wl52zshbaj

  • MD5

    9cc162dc30cd17eaf8efede2ebcc0c8c

  • SHA1

    b267c9a8c78b0a601931538ac0f805186b9fee92

  • SHA256

    31c52fec2654717cb5b0d04c9fce32b41229af3e13d0507e2518e798f089b6df

  • SHA512

    07f9c6ada30256048d1fa7b71dc1f44fa3678cf23371f7a90a8a91d8457aa10c8b40aaa316d5705c5620e6650f3dd9faf65d17caaa7cd19dc61ee6e45023f210

Score
10/10
metasploitbackdoorevasionpersistencetrojanupx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      31c52fec2654717cb5b0d04c9fce32b41229af3e13d0507e2518e798f089b6df

    • Size

      146KB

    • MD5

      9cc162dc30cd17eaf8efede2ebcc0c8c

    • SHA1

      b267c9a8c78b0a601931538ac0f805186b9fee92

    • SHA256

      31c52fec2654717cb5b0d04c9fce32b41229af3e13d0507e2518e798f089b6df

    • SHA512

      07f9c6ada30256048d1fa7b71dc1f44fa3678cf23371f7a90a8a91d8457aa10c8b40aaa316d5705c5620e6650f3dd9faf65d17caaa7cd19dc61ee6e45023f210

    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

    • 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

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks