Overview

overview

10

Static

static

10

dd6c9a8045...6e.exe

windows7-x64

10

dd6c9a8045...6e.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    dd6c9a8045da52d61a2ff855e3432f4ef72863dd367f20410fcd12949192556e
  • Size 91KB
  • Sample240601-esdsmsaa99
  • SHA256 dd6c9a8045da52d61a2ff855e3432f4ef72863dd367f20410fcd12949192556e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
evasionpersistenceupx

Malware Config

Targets

    • Target
      dd6c9a8045da52d61a2ff855e3432f4ef72863dd367f20410fcd12949192556e
    • Size 91KB
    • SHA256 dd6c9a8045da52d61a2ff855e3432f4ef72863dd367f20410fcd12949192556e
    • MD5 SHA1 SHA512 SSDEEP
    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

7
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