Overview

overview

10

Static

static

3

b829330b25...6d.exe

windows7-x64

10

b829330b25...6d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b829330b25634a2063fdcdadc30aa6733295fcae3a9ba46fe91c887e21b24f6d

  • Size

    170KB

  • Sample

    240520-cfrsmaed95

  • MD5

    a1d7b49e3c8b96961cccfe996c2cf22e

  • SHA1

    966ca82a6c47a1672451ec8ab1499ef4e303452e

  • SHA256

    b829330b25634a2063fdcdadc30aa6733295fcae3a9ba46fe91c887e21b24f6d

  • SHA512

    2b0c70c56d5838ef3f27fedada440b0454cd8a9cc78f6da2c451df5ec987d3e16fc175545c79ebddbcdcc9027a364e5b089c6d9af2ee3e0178b9dd239f344adb

  • SSDEEP

    3072:wCcKpzOpm3uKQCDWeyDKVPy7THK4WZZzUR9Lr0lQb3:h7zOSuccuVqfp2+Se

Score
10/10
evasionpersistenceupx

Malware Config

Targets

    • Target

      b829330b25634a2063fdcdadc30aa6733295fcae3a9ba46fe91c887e21b24f6d

    • Size

      170KB

    • MD5

      a1d7b49e3c8b96961cccfe996c2cf22e

    • SHA1

      966ca82a6c47a1672451ec8ab1499ef4e303452e

    • SHA256

      b829330b25634a2063fdcdadc30aa6733295fcae3a9ba46fe91c887e21b24f6d

    • SHA512

      2b0c70c56d5838ef3f27fedada440b0454cd8a9cc78f6da2c451df5ec987d3e16fc175545c79ebddbcdcc9027a364e5b089c6d9af2ee3e0178b9dd239f344adb

    • SSDEEP

      3072:wCcKpzOpm3uKQCDWeyDKVPy7THK4WZZzUR9Lr0lQb3:h7zOSuccuVqfp2+Se

    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

    • Disables use of System Restore points

      evasion

    • Sets file execution options in registry

      persistence

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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

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

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

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

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

1
T1490

Tasks