Overview

overview

10

Static

static

5d3b04d707...a6.exe

windows7_x64

10

5d3b04d707...a6.exe

windows10_x64

10

Sharing

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General

  • Target

    5d3b04d70760235f8a39ada7aca3fce9af81f6c0c3b418908a18d4086c81cfa6

  • Size

    626KB

  • Sample

    210511-83g5cey2na

  • MD5

    b287ff0de4ca861a0aaf831cff074eb4

  • SHA1

    1f3b64a80f4653670e1d1a4b8dd4b40158970dfa

  • SHA256

    5d3b04d70760235f8a39ada7aca3fce9af81f6c0c3b418908a18d4086c81cfa6

  • SHA512

    40ea96b2c24ecf70d2e7ec0ef0d9c7026b03e38881335e3f324ff2308c7e195d9e2d73f95636f987ba206afef0c38b9bfe1a64fb63e82d7c5f73c07cbecd817c

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      5d3b04d70760235f8a39ada7aca3fce9af81f6c0c3b418908a18d4086c81cfa6

    • Size

      626KB

    • MD5

      b287ff0de4ca861a0aaf831cff074eb4

    • SHA1

      1f3b64a80f4653670e1d1a4b8dd4b40158970dfa

    • SHA256

      5d3b04d70760235f8a39ada7aca3fce9af81f6c0c3b418908a18d4086c81cfa6

    • SHA512

      40ea96b2c24ecf70d2e7ec0ef0d9c7026b03e38881335e3f324ff2308c7e195d9e2d73f95636f987ba206afef0c38b9bfe1a64fb63e82d7c5f73c07cbecd817c

    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