Analysis

  • max time kernel
    120s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2024, 03:27

General

  • Target
    afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.exe
  • Size 164KB
  • Sample241122-dz7tmazlan
  • SHA256 afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • HydraCrypt

    Relatively unsophisticated ransomware family based on leaked CrypBoss source code.

  • Hydracrypt family
  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Renames multiple (444) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

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

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 64 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 61 IoCs

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

  • Interacts with shadow copies 3 TTPs 27 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.exe
    "C:\Users\Admin\AppData\Local\Temp\afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2996
    • C:\Users\Admin\AppData\Local\Temp\afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.exe
      C:\Users\Admin\AppData\Local\Temp\afd3b729cf99fb9ea441f42862a4835d1d6eeb36ee535f9b206e3a00382c972e.exe
      2⤵
      • Drops startup file
      • Adds Run key to start application
      • Drops desktop.ini file(s)
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2848
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C net stop vss
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2856
        • C:\Windows\SysWOW64\net.exe
          net stop vss
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2768
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop vss
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2176
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /All
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2804
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2012
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C wmic shadowcopy delete
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2708
        • C:\Windows\SysWOW64\Wbem\WMIC.exe
          wmic shadowcopy delete
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          PID:560
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=Z: /All
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2552
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=Z: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1084
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=Y: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2548
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=Y: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2080
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=X: /All
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:776
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=X: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2152
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=W: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1688
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=W: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:3064
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=V: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:836
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=V: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2184
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=U: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2368
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=U: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2244
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=T: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2388
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=T: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1956
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=S: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1984
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=S: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1724
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=R: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2088
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=R: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1040
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=Q: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3020
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=Q: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1496
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=P: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2296
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=P: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1144
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=O: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1628
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=O: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1080
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=N: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1612
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=N: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1340
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=M: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2072
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=M: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1600
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=L: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1732
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=L: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1932
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=K: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1976
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=K: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1556
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=J: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:768
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=J: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2340
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=I: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1660
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=I: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2816
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=H: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1524
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=H: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1576
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=G: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2892
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=G: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2672
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=F: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1916
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=F: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:2328
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=E: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2564
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=E: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1736
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=D: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1476
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=D: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1952
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=C: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2440
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=C: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1924
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=B: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1740
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=B: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1080
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C vssadmin Delete Shadows /For=A: /All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2532
        • C:\Windows\SysWOW64\vssadmin.exe
          vssadmin Delete Shadows /For=A: /All
          4⤵
          • System Location Discovery: System Language Discovery
          • Interacts with shadow copies
          PID:1776
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 8464
        3⤵
        • Program crash
        PID:2672
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2888

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        background.png.hydracrypttmp_ID_77e208ed

        • Path C:\ProgramData\Microsoft\Device Stage\Device\{113527a4-45d4-4b6f-b567-97838f1b04b0}\background.png.hydracrypttmp_ID_77e208ed
        • Size 126KB
        • SHA256 731d891bb374f6a5aca0c00bc0b641738f7b9c85dc0fe430b83899ba8dd83e51
        • MD5 SHA1 SHA512 SSDEEP

        overlay.png.hydracrypttmp_ID_77e208ed

        • Path C:\ProgramData\Microsoft\Device Stage\Device\{113527a4-45d4-4b6f-b567-97838f1b04b0}\overlay.png.hydracrypttmp_ID_77e208ed
        • Size 28KB
        • SHA256 3c14143580caecba8032c88737105203de31a0efde9f9fc5a86e12c69fb21d50
        • MD5 SHA1 SHA512 SSDEEP

        resource.xml.hydracrypttmp_ID_77e208ed

        • Path C:\ProgramData\Microsoft\Device Stage\Task\{07deb856-fc6e-4fb9-8add-d8f2cf8722c9}\resource.xml.hydracrypttmp_ID_77e208ed
        • Size 1KB
        • SHA256 c4374ee6a84b813e4b8f2a937653130dbbbcf00271bf083dc2fe602a17205b48
        • MD5 SHA1 SHA512

        desktop.ini.hydracrypttmp_ID_77e208ed

        • Path C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\BJINZE1S\desktop.ini.hydracrypttmp_ID_77e208ed
        • Size 67B
        • SHA256 e7362a23757f60daa598a2205e641e6d7558912938370769be9588a8fc91cc49
        • MD5 SHA1 SHA512

        desktop.ini.hydracrypt_ID_77e208ed

        • Path C:\Users\Admin\AppData\Local\Microsoft\Feeds Cache\V50G20NG\desktop.ini.hydracrypt_ID_77e208ed
        • Size 331B
        • SHA256 82674fe795093a781156306dbf5cdad622357f7971d6209b06dd0c44b60ca198
        • MD5 SHA1 SHA512

        Microsoft .NET Framework 4.7.2 Setup_20241010_084107918.html.hydracrypttmp_ID_77e208ed

        • Path C:\Users\Admin\AppData\Local\Temp\Microsoft .NET Framework 4.7.2 Setup_20241010_084107918.html.hydracrypttmp_ID_77e208ed
        • Size 1.1MB
        • SHA256 45893fb5851ae02dfb37a0dfda5c670ba5fdf52faf53a956f3e740e466612344
        • MD5 SHA1 SHA512 SSDEEP

        1$FUWW$FFHEX.dat

        • Path C:\Users\Admin\AppData\Roaming\1$FUWW$FFHEX.dat
        • Size 1KB
        • SHA256 c48d58bb2cb8047619ab77e57f622059849b2572276c5c3b0da13514f8febbd2
        • MD5 SHA1 SHA512

        InstallResume.xlsx.hydracrypttmp_ID_77e208ed

        • Path C:\Users\Admin\Documents\InstallResume.xlsx.hydracrypttmp_ID_77e208ed
        • Size 9KB
        • SHA256 64afdeeed954e4986dae635d6828827559a04f51446cb3fbdf72e0493d96ba15
        • MD5 SHA1 SHA512 SSDEEP

        README_DECRYPT_HYDRA_ID_77e208ed.txt

        • Path C:\Users\Public\Videos\README_DECRYPT_HYDRA_ID_77e208ed.txt
        • Size 915B
        • SHA256 2fba5e32eef4cbea75cef9396d5a7017c057bc35af921495c217555d4655aab6
        • MD5 SHA1 SHA512

        memory/2848-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        memory/2848-23-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-7-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-15-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-25-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-17-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-434-0x0000000000400000-0x000000000040E000-memory.dmp

        memory/2848-436-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-11-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-19-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-5-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-1936-0x0000000000400000-0x000000000040E000-memory.dmp

        memory/2848-2833-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-9-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-3-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-1-0x0000000000300000-0x0000000000400000-memory.dmp

        memory/2848-13-0x0000000000400000-0x0000000000978000-memory.dmp

        memory/2848-2832-0x0000000000400000-0x000000000040E000-memory.dmp

        memory/2996-0-0x0000000000280000-0x0000000000285000-memory.dmp