Overview

overview

10

Static

static

b476c6608c...75.exe

windows7_x64

10

b476c6608c...75.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    b476c6608cca6ac547a576ed82c2c81b5ed8fb743824b7debaf5637a35805775

  • Size

    629KB

  • Sample

    220523-w6ny7sbch4

  • MD5

    01accb533eb3189cf90cdc6478926d4e

  • SHA1

    f820bad8e655b280183c35ad3980dcac6a899ff2

  • SHA256

    b476c6608cca6ac547a576ed82c2c81b5ed8fb743824b7debaf5637a35805775

  • SHA512

    d0192a3d7cf01221ee8479ce2c187996667898ef1a7ebffe02a0d7f5dd19a38d771b03067b25e440f5a56e6a2bfb42405fef57cf2760c7b1f9d306a4a1e4b9e5

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      b476c6608cca6ac547a576ed82c2c81b5ed8fb743824b7debaf5637a35805775

    • Size

      629KB

    • MD5

      01accb533eb3189cf90cdc6478926d4e

    • SHA1

      f820bad8e655b280183c35ad3980dcac6a899ff2

    • SHA256

      b476c6608cca6ac547a576ed82c2c81b5ed8fb743824b7debaf5637a35805775

    • SHA512

      d0192a3d7cf01221ee8479ce2c187996667898ef1a7ebffe02a0d7f5dd19a38d771b03067b25e440f5a56e6a2bfb42405fef57cf2760c7b1f9d306a4a1e4b9e5

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Executes dropped EXE

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

1
T1158

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

5
T1112

Hidden Files and Directories

1
T1158

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks