Overview

overview

10

Static

static

3

virussign....a0.exe

windows7-x64

10

virussign....a0.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    virussign.com_0c9848fcff565932a03329ea4b06eaa0.vir

  • Size

    645KB

  • Sample

    240528-tkh5qabc6v

  • MD5

    0c9848fcff565932a03329ea4b06eaa0

  • SHA1

    23ae79a257775e2bde59c4e604e4f4575126c307

  • SHA256

    4a60978f315699e0e402193292aac2b0b03fc73d972cbe5dbceef4025de0246a

  • SHA512

    1b2ed0107d322653ac445eb616f56f6e262ae05150407e5243ce20ea7cf62ba06fb947b7aaf8df2a37f669ae9abed818b03ffbf0dc5c5eb969005450daf9062d

  • SSDEEP

    12288:GoQaT3bcDLce5bfjD6wqvmiuYkoSfSlUnKM:DQaT3bCfxfjE+3Y7SfbnL

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      virussign.com_0c9848fcff565932a03329ea4b06eaa0.vir

    • Size

      645KB

    • MD5

      0c9848fcff565932a03329ea4b06eaa0

    • SHA1

      23ae79a257775e2bde59c4e604e4f4575126c307

    • SHA256

      4a60978f315699e0e402193292aac2b0b03fc73d972cbe5dbceef4025de0246a

    • SHA512

      1b2ed0107d322653ac445eb616f56f6e262ae05150407e5243ce20ea7cf62ba06fb947b7aaf8df2a37f669ae9abed818b03ffbf0dc5c5eb969005450daf9062d

    • SSDEEP

      12288:GoQaT3bcDLce5bfjD6wqvmiuYkoSfSlUnKM:DQaT3bCfxfjE+3Y7SfbnL

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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.

    • 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 Enterprise v15

Reconnaissance

Resource Development

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

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

Command and Control

Exfiltration

Impact

Tasks