Overview

overview

10

Static

static

5719460c6e...c8.exe

windows7-x64

10

5719460c6e...c8.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    151s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 00:44

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8.exe

  • Size

    368KB

  • MD5

    65440340932ca8194b58ab27a078d4b5

  • SHA1

    3c8690d9c4b8de49ba2ed4ceae26468a3b4220fe

  • SHA256

    5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8

  • SHA512

    23934b41dadc45710bf8c598923c481af643416c0f3cc9e71f7314204fa80bd1a90afe58933911ec03b5cd9cbef93b4328404564a40793de2e75f34c02451410

Score
10/10
persistenceransomwarespywarestealersuricata

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2660308776-3705150086-26593515-1000\Recovery+jicfx.txt

Ransom Note
__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#!__!@#!@#! NOT YOUR LANGUAGE? USE https://translate.google.com What happened to your files ? All of your files were protected by a strong encryption with RSA-4096. More information about the encryption keys using RSA-4096 can be found here: http://en.wikipedia.org/wiki/RSA_(cryptosystem) How did this happen ? !!! Specially for your PC was generated personal RSA-4096 KEY, both public and private. !!! ALL YOUR FILES were encrypted with the public key, which has been transferred to your computer via the Internet. !!! Decrypting of your files is only possible with the help of the private key and decrypt program , which is on our Secret Server What do I do ? So, there are two ways you can choose: wait for a miracle and get your price doubled, or start obtaining BITCOIN NOW! , and restore your data easy way. If You have really valuable data, you better not waste your time, because there is no other way to get your files, except make a payment. For more specific instructions, please visit your personal home page, there are a few different addresses pointing to your page below: 1. http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/44816F917716EEE 2. http://b4youfred5485jgsa3453f.italazudda.com/44816F917716EEE 3. http://5rport45vcdef345adfkksawe.bematvocal.at/44816F917716EEE If for some reasons the addresses are not available, follow these steps: 1. Download and install tor-browser: http://www.torproject.org/projects/torbrowser.html.en 2. After a successful installation, run the browser and wait for initialization 3. Type in the address bar: fwgrhsao3aoml7ej.onion/44816F917716EEE 4. Follow the instructions on the site. ---------------- IMPORTANT INFORMATION------------------------ *-*-* Your personal pages: http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/44816F917716EEE http://b4youfred5485jgsa3453f.italazudda.com/44816F917716EEE http://5rport45vcdef345adfkksawe.bematvocal.at/44816F917716EEE *-*-* Your personal page Tor-Browser: fwgrhsao3aoml7ej.ONION/44816F917716EEE *-*-* Your personal identification ID: 44816F917716EEE
URLs

http://prest54538hnksjn4kjfwdbhwere.hotchunman.com/44816F917716EEE

http://b4youfred5485jgsa3453f.italazudda.com/44816F917716EEE

http://5rport45vcdef345adfkksawe.bematvocal.at/44816F917716EEE

http://fwgrhsao3aoml7ej.onion/44816F917716EEE

http://fwgrhsao3aoml7ej.ONION/44816F917716EEE

Signatures

  • suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon

    suricata
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Executes dropped EXE 2 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 6 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs
  • System policy modification 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8.exe
    "C:\Users\Admin\AppData\Local\Temp\5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4000
    • C:\Users\Admin\AppData\Local\Temp\5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8.exe
      "C:\Users\Admin\AppData\Local\Temp\5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8.exe"
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4224
      • C:\Windows\fgwvnakybplx.exe
        C:\Windows\fgwvnakybplx.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1244
        • C:\Windows\fgwvnakybplx.exe
          C:\Windows\fgwvnakybplx.exe
          4⤵
          • Executes dropped EXE
          • Modifies extensions of user files
          • Checks computer location settings
          • Drops startup file
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:212
          • C:\Windows\System32\wbem\WMIC.exe
            "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:4560
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\571946~1.EXE
        3⤵
          PID:3836
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:3396

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    File Deletion

    1
    T1107

    Modify Registry

    2
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Data from Local System

    1
    T1005

    Exfiltration

    Command and Control

    Impact

    Inhibit System Recovery

    1
    T1490

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\fgwvnakybplx.exe
      Filesize

      368KB

      MD5

      65440340932ca8194b58ab27a078d4b5

      SHA1

      3c8690d9c4b8de49ba2ed4ceae26468a3b4220fe

      SHA256

      5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8

      SHA512

      23934b41dadc45710bf8c598923c481af643416c0f3cc9e71f7314204fa80bd1a90afe58933911ec03b5cd9cbef93b4328404564a40793de2e75f34c02451410

      Download Submit
    • C:\Windows\fgwvnakybplx.exe
      Filesize

      368KB

      MD5

      65440340932ca8194b58ab27a078d4b5

      SHA1

      3c8690d9c4b8de49ba2ed4ceae26468a3b4220fe

      SHA256

      5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8

      SHA512

      23934b41dadc45710bf8c598923c481af643416c0f3cc9e71f7314204fa80bd1a90afe58933911ec03b5cd9cbef93b4328404564a40793de2e75f34c02451410

      Download Submit
    • C:\Windows\fgwvnakybplx.exe
      Filesize

      368KB

      MD5

      65440340932ca8194b58ab27a078d4b5

      SHA1

      3c8690d9c4b8de49ba2ed4ceae26468a3b4220fe

      SHA256

      5719460c6ef7567bb9481de8d0fadd3b54bcf9202ad16279975c5fa99d3c93c8

      SHA512

      23934b41dadc45710bf8c598923c481af643416c0f3cc9e71f7314204fa80bd1a90afe58933911ec03b5cd9cbef93b4328404564a40793de2e75f34c02451410

      Download Submit
    • memory/212-142-0x0000000000000000-mapping.dmp
      Download
    • memory/212-145-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/212-149-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/212-147-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/212-146-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/1244-137-0x0000000000000000-mapping.dmp
      Download
    • memory/3836-140-0x0000000000000000-mapping.dmp
      Download
    • memory/4000-134-0x0000000002500000-0x0000000002503000-memory.dmp
      Filesize

      12KB

      Download
    • memory/4000-130-0x0000000002500000-0x0000000002503000-memory.dmp
      Filesize

      12KB

      Download
    • memory/4224-141-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/4224-131-0x0000000000000000-mapping.dmp
      Download
    • memory/4224-132-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/4224-133-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/4224-136-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/4224-135-0x0000000000400000-0x0000000000485000-memory.dmp
      Filesize

      532KB

      Download
    • memory/4560-148-0x0000000000000000-mapping.dmp
      Download