Overview

overview

10

Static

static

10

3c44a344ee...e4.exe

windows7-x64

10

3c44a344ee...e4.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    3c44a344eed3b18c238291f1481cbad1dd1636fa91f6d76d3cc5b1521e58c1e4

  • Size

    140KB

  • Sample

    240314-xh2qtscb4t

  • MD5

    895c3bca473d2adb9689364cb75efa4d

  • SHA1

    8cc017fd6b6a507bc11c695d9bc4c177a2fa63dd

  • SHA256

    3c44a344eed3b18c238291f1481cbad1dd1636fa91f6d76d3cc5b1521e58c1e4

  • SHA512

    93c6228e24c22a7240dc6ccfbada32a8c888b94398b90a46cbb8953ba1029105874cb2673e60a11782638e8c2f935c89a4e7d684f90457416a4afabf310c1e57

  • SSDEEP

    1536:ZRsjd3GR2Dxy387Lnouy8VT0CBJ9tz4Iw0NGfQpi7MBZLAG4RsfUpawBJ9tz4Htw:ZOgUXoutN7xZVX4/awx9

Score
10/10
evasionpersistenceupx

Malware Config

Targets

    • Target

      3c44a344eed3b18c238291f1481cbad1dd1636fa91f6d76d3cc5b1521e58c1e4

    • Size

      140KB

    • MD5

      895c3bca473d2adb9689364cb75efa4d

    • SHA1

      8cc017fd6b6a507bc11c695d9bc4c177a2fa63dd

    • SHA256

      3c44a344eed3b18c238291f1481cbad1dd1636fa91f6d76d3cc5b1521e58c1e4

    • SHA512

      93c6228e24c22a7240dc6ccfbada32a8c888b94398b90a46cbb8953ba1029105874cb2673e60a11782638e8c2f935c89a4e7d684f90457416a4afabf310c1e57

    • SSDEEP

      1536:ZRsjd3GR2Dxy387Lnouy8VT0CBJ9tz4Iw0NGfQpi7MBZLAG4RsfUpawBJ9tz4Htw:ZOgUXoutN7xZVX4/awx9

    Score
    10/10
    evasionpersistenceupx

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • UPX dump on OEP (original entry point)

    • Disables RegEdit via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Modify Registry

6
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

1
T1490

Tasks