Malicious PDF — malware analysis report

Static analysis result for SHA-256 c937e36080ca9696…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 08:35:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 20b196e9e9fc4b2094f9864410344808 SHA-1: 0968b83ed3426ebd4d70c89b007c0372e1aca70d SHA-256: c937e36080ca96966ed9d7954c6538ce4ae2e13beb0d56ee8a77f57b09497af0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure appears to be 'Archery Master 3D Coins Hack'. The document's structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content or further malware downloads. No scripts were extracted, but the malicious links are sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/archery-master-3d-coins-hack-game-hack In PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-get-any-package-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/roblox-redeem-cod-free_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/can-you-get-free-robux-on-your-birthday_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-tiktok-fans-hack_GM835599320.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/adonis-roblox-hack_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/site-fxcker-roblox-hack_GM431946152.pdfIn PDF document text
    • https://jdclassicautoparts.com/image/data/files/minecraft-bedrock-hacks-windows-10_GM479516143.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
stream_002_off00002fe9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FE9 23396 bytes
SHA-256: c30e21d7658bf233d48804e6d149e2016544543a90cac467c0afba2f5058d4a3
font_01_sfnt_off000064a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A7 18692 bytes
SHA-256: 5df6ebb19e7bc9bbfd1ae1cafc0ab07ff0a88d0a6634680948d9e90696a55782

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