Overview

overview

10

Static

static

3

2024-09-11...uk.exe

windows7-x64

10

2024-09-11...uk.exe

windows10-ltsc 2021-x64

10

Resubmissions

30/01/2025, 16:42

250130-t73smsynhn10

28/01/2025, 18:40

250128-xbd17a1kej10

Sharing

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General

  • Target
    240911-aseygssepl_pw_infected.zip
  • Size 65KB
  • Sample250128-xbd17a1kej
  • SHA256 7bac5c10d02534007f1efb371885ae3918d21d394371f92d4e6455b58b4e16ad
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
ryukcredential_accessdiscoveryransomwarespywarestealer

Malware Config

Targets

    • Target
      2024-09-11_13f929e2cc03dbe1780cce33b7dce110_ryuk
    • Size 436KB
    • SHA256 dcb9ec0cc6bdce89df3df0c0ca4170829f6897decd78c5365ea6e7802f3c0941
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    ryukcredential_accessdiscoveryransomwarestealerspyware

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

      ransomwareryuk

    • Ryuk family

      ryuk

    • Renames multiple (8318) files with added filename extension

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

      ransomware

    • Credentials from Password Stores: Windows Credential Manager

      Suspicious access to Credentials History.

      credential_accessstealer

    • Drops startup file

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Drops desktop.ini file(s)

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials from Password Stores

2
T1555

Credentials from Web Browsers

1
T1555.003

Windows Credential Manager

1
T1555.004

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks