Overview

overview

10

Static

static

20161205_a...f8f.js

windows7_x64

10

20161205_a...f8f.js

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    124s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    17/11/2021, 11:41

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General

  • Target

    20161205_a38d222d87d068cd555bef1566154f8f.js

  • Size

    13KB

  • MD5

    c93c2a9784dcf7765664e55657062f2d

  • SHA1

    066aed6450e5b774944fa730bcb76d79ce36f993

  • SHA256

    d6c8847eda04815d8be74d3bc462de2c08c653fe712639edc5144eb523cc205f

  • SHA512

    b26c93fd6524cb50e575d0cfb8ab7a0957dac214f28b2949cb312b45d1de0591d1e160c75b54337c668ef0209b64b4bb2bc1620013032342d42ccfc79b55f501

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 6 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 8 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_a38d222d87d068cd555bef1566154f8f.js
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:3584
    • C:\Windows\System32\rundll32.exe
      "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\DMPVQ7~1.ZK,TOxNKCZjUHCfTf9D
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4028
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\DMPVQ7~1.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:4084
  • 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:2712
  • C:\Windows\system32\browser_broker.exe
    C:\Windows\system32\browser_broker.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    PID:3516
  • 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:4932
  • 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:1948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4084-122-0x0000000074390000-0x00000000743CA000-memory.dmp

    Filesize

    232KB

    Download

  • memory/4084-124-0x00000000010C0000-0x00000000010C1000-memory.dmp

    Filesize

    4KB

    Download