Overview

overview

10

Static

static

3

bf7f217e6e...28.exe

windows7-x64

10

bf7f217e6e...28.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bf7f217e6ed26824f125c32b18f05565f06df1f71697e5408af5276be6783b28

  • Size

    192KB

  • Sample

    240523-c2hf3sag4w

  • MD5

    9fef30dd938347428f35b053c1471c40

  • SHA1

    eebb0da55b3ee405482c3766ec4a2f3b5e06066b

  • SHA256

    bf7f217e6ed26824f125c32b18f05565f06df1f71697e5408af5276be6783b28

  • SHA512

    8fa464e50d22cb314ddf6725c840f1a74c1aca84dacbfd834e3aa41acb48dfdd265105038f11ab0248d76b24c0c0e434304297e7b5db869607f2feed33f249fd

  • SSDEEP

    6144:K7XpwZmk+3eKfWJXtHa+fx+Smw63nTY4uSlq:gmZPjXtQKqq

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      bf7f217e6ed26824f125c32b18f05565f06df1f71697e5408af5276be6783b28

    • Size

      192KB

    • MD5

      9fef30dd938347428f35b053c1471c40

    • SHA1

      eebb0da55b3ee405482c3766ec4a2f3b5e06066b

    • SHA256

      bf7f217e6ed26824f125c32b18f05565f06df1f71697e5408af5276be6783b28

    • SHA512

      8fa464e50d22cb314ddf6725c840f1a74c1aca84dacbfd834e3aa41acb48dfdd265105038f11ab0248d76b24c0c0e434304297e7b5db869607f2feed33f249fd

    • SSDEEP

      6144:K7XpwZmk+3eKfWJXtHa+fx+Smw63nTY4uSlq:gmZPjXtQKqq

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (58) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • 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 v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
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

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks