Overview

overview

10

Static

static

1

Ransomware...us.zip

windows10-ltsc 2021-x64

10

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General

  • Target

    Ransomware.WannaCry_Plus.zip

  • Size

    285KB

  • Sample

    241202-xgf3qsxkdt

  • MD5

    fbf3d8421a7a3ea6d4b1aedcb07f2efe

  • SHA1

    e31b80a67567016b3a6fd8aad418e3ddf9a720fd

  • SHA256

    f2d5fc9ebc97be7fa9111643505aca04bc0cf85a8efdcce24444dced1bbd95fe

  • SHA512

    1b726d891cc904d7563c5c99a7b0a4b4a762e8dcf11b9cc6d2283e6dbc53dd3b5e167b50f902e648433f10f212a9196bb351c46904d534152caf6529091df882

  • SSDEEP

    6144:8Ps23pOL/saqkPV9FemLtcsDSsmw59gvZJT3CqbMrhryf65NRPaCieMjAkvCJv1p:as23pOL/saqkPV9FemLtcsDSsmw59gvo

Score
10/10
dharmagoogledefense_evasiondiscoverypersistencephishingransomwareupx

Malware Config

Targets

    • Target

      Ransomware.WannaCry_Plus.zip

    • Size

      285KB

    • MD5

      fbf3d8421a7a3ea6d4b1aedcb07f2efe

    • SHA1

      e31b80a67567016b3a6fd8aad418e3ddf9a720fd

    • SHA256

      f2d5fc9ebc97be7fa9111643505aca04bc0cf85a8efdcce24444dced1bbd95fe

    • SHA512

      1b726d891cc904d7563c5c99a7b0a4b4a762e8dcf11b9cc6d2283e6dbc53dd3b5e167b50f902e648433f10f212a9196bb351c46904d534152caf6529091df882

    • SSDEEP

      6144:8Ps23pOL/saqkPV9FemLtcsDSsmw59gvZJT3CqbMrhryf65NRPaCieMjAkvCJv1p:as23pOL/saqkPV9FemLtcsDSsmw59gvo

    Score
    10/10
    dharmagoogledefense_evasiondiscoverypersistencephishingransomwareupx

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

      ransomwaredharma

    • Dharma family

      dharma

    • Modifies WinLogon for persistence

      persistence

    • Contacts a large (1126) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Downloads MZ/PE file

    • Drops startup file

    • Executes dropped EXE

    • Impair Defenses: Safe Mode Boot

      defense_evasion

    • Loads dropped DLL

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • Detected potential entity reuse from brand GOOGLE.

      phishinggoogle

    • Drops file in System32 directory

    • UPX packed file

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

      upx
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Impair Defenses

1
T1562

Safe Mode Boot

1
T1562.009

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

SIP and Trust Provider Hijacking

1
T1553.003

Credential Access

Discovery

Network Service Discovery

1
T1046

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Tasks