Overview

overview

10

Static

static

3ac715631a...9d.exe

windows7_x64

10

3ac715631a...9d.exe

windows10_x64

10

Sharing

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General

  • Target

    3ac715631a790073237aaf2f3f29508e3a1620de79316caeb16ef86d7583199d

  • Size

    751KB

  • Sample

    210511-xyg5s7yx2s

  • MD5

    7a559170ec2177d49dad19c92dbe182d

  • SHA1

    65f4fde389e3630c21571d9c3c8b417f709202d0

  • SHA256

    3ac715631a790073237aaf2f3f29508e3a1620de79316caeb16ef86d7583199d

  • SHA512

    3be9220c02f9f5ab1348978fb69585c3498cdf26d8ffa670b9cccca822c827e03fdf2a901447c49c7cfcc4fe7033d4aa405cbe15c150354e58cd31e95a17cc39

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      3ac715631a790073237aaf2f3f29508e3a1620de79316caeb16ef86d7583199d

    • Size

      751KB

    • MD5

      7a559170ec2177d49dad19c92dbe182d

    • SHA1

      65f4fde389e3630c21571d9c3c8b417f709202d0

    • SHA256

      3ac715631a790073237aaf2f3f29508e3a1620de79316caeb16ef86d7583199d

    • SHA512

      3be9220c02f9f5ab1348978fb69585c3498cdf26d8ffa670b9cccca822c827e03fdf2a901447c49c7cfcc4fe7033d4aa405cbe15c150354e58cd31e95a17cc39

    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