Overview

overview

10

Static

static

3

1bf9d170c0...1b.exe

windows7-x64

10

1bf9d170c0...1b.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1bf9d170c078c92fd3d6044390c6a4612299463e5f2d8953d2e86aa04601671b

  • Size

    214KB

  • Sample

    240521-x3d59sfg25

  • MD5

    af970f81b48a8a0b82129ba4caf139c2

  • SHA1

    cc878716b51f51499bb2710a4de49f02ca71cc2e

  • SHA256

    1bf9d170c078c92fd3d6044390c6a4612299463e5f2d8953d2e86aa04601671b

  • SHA512

    06bf7fd4de10b6f5219dfebbd973666a97a9705f66bf5c6bef01eaad1b66f8ab95481c1f6c9e4fbf07908d45f348896fed2eb8b98dd232e69429b7f55a7e54d4

  • SSDEEP

    6144:L+j7kB4xYjgBHDIuMqxa0BlgBAQYnMtXfG4k46EpJ5pG:LY7kQYjqDIQxHgKlM9IhSJ5

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      1bf9d170c078c92fd3d6044390c6a4612299463e5f2d8953d2e86aa04601671b

    • Size

      214KB

    • MD5

      af970f81b48a8a0b82129ba4caf139c2

    • SHA1

      cc878716b51f51499bb2710a4de49f02ca71cc2e

    • SHA256

      1bf9d170c078c92fd3d6044390c6a4612299463e5f2d8953d2e86aa04601671b

    • SHA512

      06bf7fd4de10b6f5219dfebbd973666a97a9705f66bf5c6bef01eaad1b66f8ab95481c1f6c9e4fbf07908d45f348896fed2eb8b98dd232e69429b7f55a7e54d4

    • SSDEEP

      6144:L+j7kB4xYjgBHDIuMqxa0BlgBAQYnMtXfG4k46EpJ5pG:LY7kQYjqDIQxHgKlM9IhSJ5

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (79) 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