Overview

overview

10

Static

static

20161205_9...694.js

windows7_x64

10

20161205_9...694.js

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    17/11/2021, 11:31

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General

  • Target

    20161205_94392b41886882eae567704071328694.js

  • Size

    12KB

  • MD5

    606a681823a1378212c3eb66e9f4b2f0

  • SHA1

    7f60d8ad61224419a77e43626c81f5c7c2510533

  • SHA256

    8758f8414e002568ca5872b1677f26a238ef8dd7e10840c9b23b296c86ff9f13

  • SHA512

    d4366b90d827fa32f1dd5454a0bc6d4776073867bfbbf4c5ae9cb94bac1a328823b62691361d324e941d7b9a73aa9e65f538878fd7ab8a325d15e50e7769d1a5

Score
10/10
lockylocky_osirisransomware

Malware Config

Signatures

  • Locky

    Ransomware strain released in 2016, with advanced features like anti-analysis.

    ransomwarelocky
  • Locky (Osiris variant)

    Variant of the Locky ransomware seen in the wild since early 2017.

    ransomwarelocky_osiris
  • Blocklisted process makes network request 7 IoCs
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • 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.

  • Modifies Control Panel 2 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_94392b41886882eae567704071328694.js
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:2788
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\RPDIHV~1.ZK,TOxNKCZjUHCfTf9D
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1008
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\RPDIHV~1.ZK,TOxNKCZjUHCfTf9D
        3⤵
        • Blocklisted process makes network request
        • Modifies extensions of user files
        • Checks computer location settings
        • Loads dropped DLL
        • Sets desktop wallpaper using registry
        • Modifies Control Panel
        PID:3444
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdge.exe" -ServerName:MicrosoftEdge.AppXdnhjhccw3zf0j06tkg3jtqr00qdm0khc.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2100
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:3456
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    PID:3256
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Modifies registry class
    PID:3876

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3444-122-0x0000000073800000-0x000000007383A000-memory.dmp

    Filesize

    232KB

    Download

  • memory/3444-124-0x00000000032E0000-0x00000000032E1000-memory.dmp

    Filesize

    4KB

    Download