Overview

overview

10

Static

static

8

3880f8fe33...42.exe

windows7_x64

10

3880f8fe33...42.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3880f8fe33d6d52589a613b5d764e1d864c6ceeac2abd5ac7911176ce6315a42

  • Size

    196KB

  • Sample

    220707-ef4hjacfdr

  • MD5

    993ee279bc338255e79c3ab5a4a022db

  • SHA1

    2004648b06f2633b9831eb71e24313bac3b3f5b2

  • SHA256

    3880f8fe33d6d52589a613b5d764e1d864c6ceeac2abd5ac7911176ce6315a42

  • SHA512

    b234176793a37162c0ac9d9234e29c8679f9bcb7776d690bf79c654300bdeeed2860b711116f263068f2cb8d4d764589c6d08e2b87329becb47ab36f993dc5a3

Score
10/10
collectionevasionpersistenceupx

Malware Config

Targets

    • Target

      3880f8fe33d6d52589a613b5d764e1d864c6ceeac2abd5ac7911176ce6315a42

    • Size

      196KB

    • MD5

      993ee279bc338255e79c3ab5a4a022db

    • SHA1

      2004648b06f2633b9831eb71e24313bac3b3f5b2

    • SHA256

      3880f8fe33d6d52589a613b5d764e1d864c6ceeac2abd5ac7911176ce6315a42

    • SHA512

      b234176793a37162c0ac9d9234e29c8679f9bcb7776d690bf79c654300bdeeed2860b711116f263068f2cb8d4d764589c6d08e2b87329becb47ab36f993dc5a3

    Score
    10/10
    collectionevasionpersistenceupx

    • Modifies WinLogon for persistence

      persistence

    • Modifies system executable filetype association

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • Disables RegEdit via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Executes dropped EXE

    • UPX packed file

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

      upx

    • Loads dropped DLL

    • Accesses Microsoft Outlook profiles

      collection

    • 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 Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Change Default File Association

1
T1042

Hidden Files and Directories

2
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

7
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Email Collection

1
T1114

Exfiltration

Command and Control

Impact

Inhibit System Recovery

1
T1490

Tasks