Overview

overview

9

Static

static

3

2026-06-02...os.exe

windows10-2004-x64

9

2026-06-02...os.exe

windows11-21h2-x64

9

Analysis

  • max time kernel
    149s
  • max time network
    96s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 03:56

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General

  • Target
    2026-06-02_9355a7b5ec83ba5731e548fb4ed3630c_bitrat_conti_elex_remcos.exe
  • Size 210KB
  • Sample260602-ehb63aex4q
  • SHA256 da359bd1117d25f8dcaa0ef38e6951fc4c4144a0c10b2c95ae176319a69775af
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
credential_accessdiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (9282) 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 1 TTPs

    Suspicious access to Credentials History.

    credential_accessstealer
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 30 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-06-02_9355a7b5ec83ba5731e548fb4ed3630c_bitrat_conti_elex_remcos.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-06-02_9355a7b5ec83ba5731e548fb4ed3630c_bitrat_conti_elex_remcos.exe"
    1⤵
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{7FB308E5-7B06-456F-A59A-99E09992E4AC}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{7FB308E5-7B06-456F-A59A-99E09992E4AC}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:5048
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3416

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        README.txt
        • Path C:\ProgramData\README.txt
        • Size 122B
        • SHA256 4a1dea30a2d172092f5cd709a76f89bfdd45f12066dd3214d9e065511fd00f1c
        • MD5 SHA1 SHA512 TLSH
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