Overview

overview

10

Static

static

2dc5a433_b...is.exe

windows7_x64

10

2dc5a433_b...is.exe

windows10_x64

10

Analysis

  • max time kernel
    121s
  • max time network
    92s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    14/05/2021, 17:02

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General

  • Target
    2dc5a433_by_Libranalysis.exe
  • Size 190KB
  • Sample210514-hndfknncnx
  • SHA256 1ce8a939b3e7d84c59c12dc9e1091532f4336dac533847b6533b01d9dcf494e9
  • MD5 SHA1 SHA512
Score
10/10
contiransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\readme.txt

  • conti

Ransom Note
  • All of your files are currently encrypted by CONTI ransomware. If you try to use any additional recovery software - the files might be damaged or lost. To make sure that we REALLY CAN recover data - we offer you to decrypt samples. You can contact us for further instructions through: Our website TOR VERSION : (you should download and install TOR browser first https://torproject.org) http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/ HTTPS VERSION : https://contirecovery.top/ YOU SHOULD BE AWARE! Just in case, if you try to ignore us. We've downloaded your data and are ready to publish it on out news website if you do not respond. So it will be better for both sides if you contact us ASAP ---BEGIN ID--- FQ6C1V320lsGoEpDS1i4SFkTzLnOQ9vSXpwMwYdsE7CL2myTZeHVHuuqtzHQGOpB ---END ID---
URLs

  • http://contirecj4hbzmyzuydyzrvm2c65blmvhoj2cvf25zqj2dwrrqcq5oad.onion/

  • https://contirecovery.top/

Signatures

  • Conti Ransomware

    Ransomware generally thought to be a successor to Ryuk.

    ransomwareconti
  • Modifies extensions of user files 15 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Drops desktop.ini file(s) 32 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2dc5a433_by_Libranalysis.exe
    "C:\Users\Admin\AppData\Local\Temp\2dc5a433_by_Libranalysis.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:860
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{493E2A7D-D35C-4823-8312-DB6A87B45E66}'" delete
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3128
      • C:\Windows\System32\wbem\WMIC.exe
        C:\Windows\System32\wbem\WMIC.exe shadowcopy where "ID='{493E2A7D-D35C-4823-8312-DB6A87B45E66}'" delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3356
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3892
  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:3364
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -s tiledatamodelsvc
    1⤵
    • Drops file in Windows directory
    PID:2648

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/2648-117-0x00000229626A0000-0x00000229626B0000-memory.dmp
        Download

        memory/2648-116-0x0000022962390000-0x00000229623A0000-memory.dmp
        Download