Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d6e917e4a5a0609…

MALICIOUS

PDF

34.7 KB Created: 2021-07-05 20:45:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 59c66ed4f49d29e6a4cc5ae481dda3fb SHA-1: af4001e2fdf320dfd4c93ea37dc83eb4c418741d SHA-256: 4d6e917e4a5a0609ab1441fe107ad807c880350c30a133cd3c1d026a59d3e49d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/free-robux-no-survey-game-hack PDF link annotation
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/roblox-hack-website-easy_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/builders-club-roblox-free-for-kids_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/how-to-get-money-in-adopt-me-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/roblox-vehicle-simulaor-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/roblox-free-robux-hack-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/how-to-get-free-godly-roblox-mm2-2021_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/ho-to-hack-on-roblox-windows_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/free-afro-roblox_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/roblox-skywars-wins-hack_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/roblox-hack-counter-blox_GM431946152.pdfIn PDF document text
    • https://www.shoppingmart.ie/uploaded_files/userfiles/files/robux-today_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3088 22444 bytes
SHA-256: e363b84ca46fad1e5332807cba5ffc18d4b2675151b3a40043dc4ebebf0e5221
font_01_sfnt_off000062a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A3 19012 bytes
SHA-256: 4e4ee538de79ec7e4a2325d57c934275716f5f92a64f1321ae55620a5fe6760f

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