Overview

overview

10

Static

static

3

21f37b25a0...23.exe

windows7-x64

10

21f37b25a0...23.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    21f37b25a0441c8f25df4351393ee50ee4e9b70466c8f8cd3dda886c78334023

  • Size

    201KB

  • Sample

    240522-yafztsdg9t

  • MD5

    2fa2b4a6ba4e35f024e2d3bcefc03fca

  • SHA1

    6af965283bf78a17b989a755527754535b4791d9

  • SHA256

    21f37b25a0441c8f25df4351393ee50ee4e9b70466c8f8cd3dda886c78334023

  • SHA512

    31e1d63a674ec792ad8dd2287dccb51e22d10773be472b439b32dd28c76b2231deeb85dcc6605f4ed3a1fdfa177f97a0b598265568d02ec0172dbd908d36c266

  • SSDEEP

    6144:QBF/hTDrEqoWUSyfdBZ5m6Mi/adudGCDMCJQ:iF/lDYpnSylJm4DMD

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      21f37b25a0441c8f25df4351393ee50ee4e9b70466c8f8cd3dda886c78334023

    • Size

      201KB

    • MD5

      2fa2b4a6ba4e35f024e2d3bcefc03fca

    • SHA1

      6af965283bf78a17b989a755527754535b4791d9

    • SHA256

      21f37b25a0441c8f25df4351393ee50ee4e9b70466c8f8cd3dda886c78334023

    • SHA512

      31e1d63a674ec792ad8dd2287dccb51e22d10773be472b439b32dd28c76b2231deeb85dcc6605f4ed3a1fdfa177f97a0b598265568d02ec0172dbd908d36c266

    • SSDEEP

      6144:QBF/hTDrEqoWUSyfdBZ5m6Mi/adudGCDMCJQ:iF/lDYpnSylJm4DMD

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (56) 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 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