Overview

overview

10

Static

static

3

NEAS.f795a...00.exe

windows7-x64

10

NEAS.f795a...00.exe

windows10-2004-x64

10

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General

  • Target

    NEAS.f795aa600625f4fcd451f6c36877a100.exe

  • Size

    323KB

  • Sample

    231112-y9xfvsbe21

  • MD5

    f795aa600625f4fcd451f6c36877a100

  • SHA1

    fa2e9b314c2991a56b25d878051011b509355208

  • SHA256

    9bc3ebd1a66ca4e140be8aeb06a9eb31e600fc7f27efaa564c55fb891fabe6ba

  • SHA512

    545e9661b8fc41405a75dc1e2e6b7b285e04fcaa6461ad27501f922374ac7f3ebb2629cfbeece7168a61d66d336dcaae51face426824e59fe2b26d43646cd9bd

  • SSDEEP

    6144:hBxeN/Tdx8YzL+4eBDgelLBL9C53TV5n+yNXavM:hBxe9dx8Yz6nhtL9C53TV5n+4av

Score
10/10
evasionpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      NEAS.f795aa600625f4fcd451f6c36877a100.exe

    • Size

      323KB

    • MD5

      f795aa600625f4fcd451f6c36877a100

    • SHA1

      fa2e9b314c2991a56b25d878051011b509355208

    • SHA256

      9bc3ebd1a66ca4e140be8aeb06a9eb31e600fc7f27efaa564c55fb891fabe6ba

    • SHA512

      545e9661b8fc41405a75dc1e2e6b7b285e04fcaa6461ad27501f922374ac7f3ebb2629cfbeece7168a61d66d336dcaae51face426824e59fe2b26d43646cd9bd

    • SSDEEP

      6144:hBxeN/Tdx8YzL+4eBDgelLBL9C53TV5n+yNXavM:hBxe9dx8Yz6nhtL9C53TV5n+4av

    Score
    10/10
    evasionpersistenceransomwaretrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Disables cmd.exe use via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Sets file execution options in registry

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Enumerates connected drives

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

3
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

8
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks