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Overview

overview

10

Static

static

7

4d7a5bf781...32.exe

windows7-x64

10

4d7a5bf781...32.exe

windows10-2004-x64

10

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General

  • Target

    4d7a5bf7819da93e728bb26c4211d980_exe32.exe

  • Size

    1.9MB

  • Sample

    231015-yb3vzsdc83

  • MD5

    4d7a5bf7819da93e728bb26c4211d980

  • SHA1

    0a0a4278347cb1c65fb0a5df31c02dfec898fc72

  • SHA256

    bb8775fefc81ae9c2a17bf952df1e2b871f684989c1881881425b60af18a272a

  • SHA512

    807bd34e2ba42f55c1a733b0e240fca0f910f725a6e2b3c1afcc5a95233b82be9557ef41c48eccce50a150a9ef7ba6d23b599e330e4523f94b7bcafcfdeca02e

  • SSDEEP

    12288:ONNEj+gNNEj+cNNEj+gNNEj+WNNEj+0NNEj+0NNEj+R:ONNGNNaNNGNNENNKNNKNNj

Score
10/10
evasionpersistenceransomwaretrojanupx

Malware Config

Targets

    • Target

      4d7a5bf7819da93e728bb26c4211d980_exe32.exe

    • Size

      1.9MB

    • MD5

      4d7a5bf7819da93e728bb26c4211d980

    • SHA1

      0a0a4278347cb1c65fb0a5df31c02dfec898fc72

    • SHA256

      bb8775fefc81ae9c2a17bf952df1e2b871f684989c1881881425b60af18a272a

    • SHA512

      807bd34e2ba42f55c1a733b0e240fca0f910f725a6e2b3c1afcc5a95233b82be9557ef41c48eccce50a150a9ef7ba6d23b599e330e4523f94b7bcafcfdeca02e

    • SSDEEP

      12288:ONNEj+gNNEj+cNNEj+gNNEj+WNNEj+0NNEj+0NNEj+R:ONNGNNaNNGNNENNKNNKNNj

    Score
    10/10
    evasionpersistenceransomwaretrojanupx

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Disables RegEdit via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Drops file in Drivers directory

    • Sets file execution options in registry

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

      upx

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Drops desktop.ini file(s)

    • 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

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

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

9
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks