Overview

overview

10

Static

static

20161205_8...4d0.js

windows7_x64

10

20161205_8...4d0.js

windows10_x64

10

Analysis

  • max time kernel
    155s
  • max time network
    129s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    18-11-2021 14:05

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General

  • Target

    20161205_81d78d08e4ef7f5416d25833f8f394d0.js

  • Size

    13KB

  • MD5

    cf259e151da4827954a95bc7b35aa1d2

  • SHA1

    5bc1ddc79099cc8a197305a1272e6211470ae8fc

  • SHA256

    765748dc0f5b0a5ca9e98302794c92a962528a66935f68b2836b877e96f6353e

  • SHA512

    3eb6914e890540d297d3872c2126006088b16be72cfe83e71cfe49e9c9c4fa0287c9c01e7dac40d813761c06762bd97c1ecff6bd952d36d258224ae70e19db9a

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 9 IoCs
  • Modifies extensions of user files 2 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 3 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 3 IoCs
    adwarespyware
  • Modifies registry class 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\20161205_81d78d08e4ef7f5416d25833f8f394d0.js
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:2688
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\GYXD8P~1.ZK,TOxNKCZjUHCfTf9D
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2332
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\GYXD8P~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:2936
  • 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:2980
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:360
  • 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 behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2612
  • C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe
    "C:\Windows\SystemApps\Microsoft.MicrosoftEdge_8wekyb3d8bbwe\MicrosoftEdgeCP.exe" -ServerName:ContentProcess.AppX6z3cwk4fvgady6zya12j1cw28d228a7k.mca
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of AdjustPrivilegeToken
    PID:4020
  • 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 AdjustPrivilegeToken
    PID:1300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/2936-122-0x0000000073930000-0x000000007396A000-memory.dmp

    Filesize

    232KB

    Download

  • memory/2936-124-0x0000000000F60000-0x0000000000F61000-memory.dmp

    Filesize

    4KB

    Download