Overview

overview

10

Static

static

3

591.86-des...ql.exe

windows10-ltsc_2021-x64

8

591.86-des...ql.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    591.86-desktop-win10-win11-64bit-international-dch-whql.7z
  • Size 827.1MB
  • Sample260707-2jrpgaft2v
  • SHA256 8be09dc28c27e3381be7b18cc83bfa054ff01fffe4490e9a96e9a93b89455316
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
stealc_stealerdefense_evasiondiscoverypersistencespywarestealertrojan

Malware Config

Targets

    • Target
      591.86-desktop-win10-win11-64bit-international-dch-whql.exe
    • Size 831.9MB
    • SHA256 0c157cef1c14f7a1945cbdb1285f8a378544a6fd8b970da9481b3c89586aa5dd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    defense_evasiondiscoverypersistencespywarestealertrojanstealc_stealer

    • Family: stealc_stealer

      stealc_stealer

    • Detects StealC in memory using payload markers, WinINet APIs and protocol strings

      StealC Stealer.

      stealer

    • Downloads MZ/PE file

    • 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Network Service Discovery

      Attempt to gather information on host's network.

      discovery

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Browser Information Discovery

1
T1217

Network Service Discovery

1
T1046

Peripheral Device Discovery

1
T1120

Query Registry

6
T1012

System Information Discovery

5
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Time Discovery

1
T1124

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks