Overview

overview

10

Static

static

1

swiftcopy2...pdf.js

windows7-x64

10

swiftcopy2...pdf.js

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-03-2023 13:11

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General

  • Target

    swiftcopy29,000-pdf.js

  • Size

    851KB

  • MD5

    937dc6d86aaec946b8b1a85c18dfc0f9

  • SHA1

    54cffa114d9190531e7ea511fcb3366891cdec78

  • SHA256

    0709e45b9186e29e63b1201836886b878e3d58ab49839aad499982909e6f2a70

  • SHA512

    21239b6c8b1fef9cf1589110c43d586a42bf74fdabc9782df92042bc80c0ff66147837d227b02ec039d0ceac66a6ca2135edfeaab0f207b934157cd51daf3ea5

  • SSDEEP

    6144:ZPCzWsMvIvVtVys9ViggID8N7dxjZNQySzE70Gd:0MvQ/VnQAD8JdxjZKO0Gd

Score
10/10
wshratpersistencetrojan

Malware Config

Extracted

Family

wshrat

C2

http://109.206.240.41:5802

Signatures

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

    trojanwshrat
  • Blocklisted process makes network request 29 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 8 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 28 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\swiftcopy29,000-pdf.js
    1⤵
    • Blocklisted process makes network request
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4828
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\swiftcopy29,000-pdf.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      • Adds Run key to start application
      PID:1116

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\swiftcopy29,000-pdf.js
    Filesize

    64KB

    MD5

    95e619773db1f70e5a6f43045400ff3e

    SHA1

    4ce4a7b1bdd22d0f416bee334f378c932a51ad1d

    SHA256

    b66ed26a4c741a6be6ed036e555ca071d8f357fd4f0a93499e28d5d9cab20f97

    SHA512

    1f3ae8c75c2bfae2040362a560479583f5bb16984db4f577b2b8b4b70e69b2979819f757151e8e3e6e0428a4b6afabd8a2a369e7e9ef2dd1bfb0a5388d15f71b

    Download Submit

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\swiftcopy29,000-pdf.js
    Filesize

    851KB

    MD5

    937dc6d86aaec946b8b1a85c18dfc0f9

    SHA1

    54cffa114d9190531e7ea511fcb3366891cdec78

    SHA256

    0709e45b9186e29e63b1201836886b878e3d58ab49839aad499982909e6f2a70

    SHA512

    21239b6c8b1fef9cf1589110c43d586a42bf74fdabc9782df92042bc80c0ff66147837d227b02ec039d0ceac66a6ca2135edfeaab0f207b934157cd51daf3ea5

    Download Submit

  • C:\Users\Admin\AppData\Roaming\swiftcopy29,000-pdf.js
    Filesize

    851KB

    MD5

    937dc6d86aaec946b8b1a85c18dfc0f9

    SHA1

    54cffa114d9190531e7ea511fcb3366891cdec78

    SHA256

    0709e45b9186e29e63b1201836886b878e3d58ab49839aad499982909e6f2a70

    SHA512

    21239b6c8b1fef9cf1589110c43d586a42bf74fdabc9782df92042bc80c0ff66147837d227b02ec039d0ceac66a6ca2135edfeaab0f207b934157cd51daf3ea5

    Download Submit