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Overview

overview

10

Static

static

3

1dc4f4836b...3a.exe

windows7-x64

10

1dc4f4836b...3a.exe

windows10-2004-x64

10

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General

  • Target

    1dc4f4836b0e26d76152109e35931966d7e5b142dbcbf86b583026c90989a93a

  • Size

    488KB

  • Sample

    240614-x436sasgph

  • MD5

    549b285b034030900764b8ca09f9ac26

  • SHA1

    81b386310f280e7788a0ffa1fa05fee6fe0fb817

  • SHA256

    1dc4f4836b0e26d76152109e35931966d7e5b142dbcbf86b583026c90989a93a

  • SHA512

    16cc3bb81f57d5d37811764433d4882812d740ab6ec48b1bf96c3492d5cba2a61f01d52dadec6010069e165b7e82e1720d095f1df45865b549093cfa43c7c787

  • SSDEEP

    12288:V/M5/MP/Mx/M7/Mx/M4/MpBE/Mk/M2/M1:V6K2O2HIBEd7M

Score
10/10
evasionpersistence

Malware Config

Targets

    • Target

      1dc4f4836b0e26d76152109e35931966d7e5b142dbcbf86b583026c90989a93a

    • Size

      488KB

    • MD5

      549b285b034030900764b8ca09f9ac26

    • SHA1

      81b386310f280e7788a0ffa1fa05fee6fe0fb817

    • SHA256

      1dc4f4836b0e26d76152109e35931966d7e5b142dbcbf86b583026c90989a93a

    • SHA512

      16cc3bb81f57d5d37811764433d4882812d740ab6ec48b1bf96c3492d5cba2a61f01d52dadec6010069e165b7e82e1720d095f1df45865b549093cfa43c7c787

    • SSDEEP

      12288:V/M5/MP/Mx/M7/Mx/M4/MpBE/Mk/M2/M1:V6K2O2HIBEd7M

    Score
    10/10
    evasionpersistence

    • Modifies WinLogon for persistence

      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 Task Manager via registry modification

      evasion

    • Disables cmd.exe use via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

      persistence

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    • Modifies WinLogon

      persistence

    • Drops autorun.inf file

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

    • Drops file in System32 directory

    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

1
T1547.001

Winlogon Helper DLL

2
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

1
T1547.001

Winlogon Helper DLL

2
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

9
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

1
T1490

Tasks