Overview

overview

10

Static

static

c393950740...a8.exe

windows7-x64

10

c393950740...a8.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    c393950740b0b2e19ce640511930d23c35f7d86a79fc456906e2b7a2445d53a8

  • Size

    264KB

  • Sample

    221203-gbnydshf27

  • MD5

    c8163be8a4317e06cdb97b33b805d9a1

  • SHA1

    581f759e03d7a9b4721b490e27a794ae28e5753c

  • SHA256

    c393950740b0b2e19ce640511930d23c35f7d86a79fc456906e2b7a2445d53a8

  • SHA512

    90801fc802ca8e970599e5823ef645813dc0d2c585cacf15d9580304b66a245c4d34704284bb21cca677e3a371438ab24018f840e6842652231e211ad18c7fbb

  • SSDEEP

    6144:w/UvChJWQnyLCRvEVcZqHsmDUSnR3nbnPnn8nbnPnn8nbnPnn8nbnPnn8nbnPnn8:wqChJjntRgACpVR

Score
10/10
metasploitbackdoorevasionpersistencetrojanupx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Targets

    • Target

      c393950740b0b2e19ce640511930d23c35f7d86a79fc456906e2b7a2445d53a8

    • Size

      264KB

    • MD5

      c8163be8a4317e06cdb97b33b805d9a1

    • SHA1

      581f759e03d7a9b4721b490e27a794ae28e5753c

    • SHA256

      c393950740b0b2e19ce640511930d23c35f7d86a79fc456906e2b7a2445d53a8

    • SHA512

      90801fc802ca8e970599e5823ef645813dc0d2c585cacf15d9580304b66a245c4d34704284bb21cca677e3a371438ab24018f840e6842652231e211ad18c7fbb

    • SSDEEP

      6144:w/UvChJWQnyLCRvEVcZqHsmDUSnR3nbnPnn8nbnPnn8nbnPnn8nbnPnn8nbnPnn8:wqChJjntRgACpVR

    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