Overview

overview

10

Static

static

0e55ead3b8...1a.exe

windows7_x64

10

0e55ead3b8...1a.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    141s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19/01/2022, 18:48

Sharing

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General

  • Target
    0e55ead3b8fd305d9a54f78c7b56741a.exe
  • Size 1.3MB
  • Sample220119-xfwf2acdg2
  • SHA256 2b9838da7edb0decd32b086e47a31e8f5733b5981ad8247a2f9508e232589bff
  • MD5 SHA1 SHA512
Score
10/10
dearcrypersistenceransomwarespywarestealer

Malware Config

Extracted

Path

  • C:\Users\Public\Desktop\readme.txt

  • dearcry

Ransom Note
  • Your file has been encrypted! If you want to decrypt, please contact us. [email protected] or [email protected] And please send me the following hash! 638428e5021d4ae247b21acf9c0bf6f6

Signatures

  • DearCry

    DearCry is a ransomware first seen after the 2021 Microsoft Exchange hacks.

    ransomwaredearcry
  • Modifies Installed Components in the registry 2 TTPs
    persistence
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • 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) 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 2 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 5 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 29 IoCs
  • Suspicious use of SendNotifyMessage 29 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e55ead3b8fd305d9a54f78c7b56741a.exe
    "C:\Users\Admin\AppData\Local\Temp\0e55ead3b8fd305d9a54f78c7b56741a.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:1460
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 1376 -s 1108
    1⤵
    • Program crash
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:436
    • C:\Windows\Explorer.EXE
      "C:\Windows\Explorer.EXE"
      2⤵
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1624
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\readme.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:1116

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/436-56-0x0000000001DF0000-0x0000000001DF1000-memory.dmp
        Download

        memory/436-53-0x000007FEFB591000-0x000007FEFB593000-memory.dmp
        Download

        memory/1624-57-0x000007FEFAFC1000-0x000007FEFAFC3000-memory.dmp
        Download