Overview

overview

10

Static

static

1

chrome.dll.sig

windows7-x64

chrome.dll.sig

windows10-2004-x64

Sharing

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General

  • Target

    chrome.dll.sig

  • Size

    1KB

  • Sample

    240525-sh6mkaha82

  • MD5

    551febd41119cc37d2b0e88f27f0db22

  • SHA1

    381c66a2ce011ca96f3587f2e9048f3076de801c

  • SHA256

    9dc891424224fbbb32b2e421a776d1a81711994d1e3cde7cabd5a80e4c735b12

  • SHA512

    ba4ab9e1831cc94c2d7aa81b826b4aeba23ff5d1271ce4bf97f2fb8b621b37214880c9480d7bf70ddd6acb66d50a89a4b2a74318c58a99144012faf7a85d4ba6

Score
10/10
evasionpersistenceransomwaretrojan

Malware Config

Targets

    • Target

      chrome.dll.sig

    • Size

      1KB

    • MD5

      551febd41119cc37d2b0e88f27f0db22

    • SHA1

      381c66a2ce011ca96f3587f2e9048f3076de801c

    • SHA256

      9dc891424224fbbb32b2e421a776d1a81711994d1e3cde7cabd5a80e4c735b12

    • SHA512

      ba4ab9e1831cc94c2d7aa81b826b4aeba23ff5d1271ce4bf97f2fb8b621b37214880c9480d7bf70ddd6acb66d50a89a4b2a74318c58a99144012faf7a85d4ba6

    Score
    10/10
    evasionpersistenceransomwaretrojan

    • Modifies WinLogon for persistence

      persistence

    • UAC bypass

      evasiontrojan

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

      evasion

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Disables use of System Restore points

      evasion

    • Sets file execution options in registry

      persistence

    • Executes dropped EXE

    • Modifies system executable filetype association

      persistence

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Event Triggered Execution

1
T1546

Change Default File Association

1
T1546.001

Defense Evasion

Modify Registry

7
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Credential Access

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

1
T1490

Defacement

1
T1491

Resource Development

Reconnaissance

Tasks