Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd2e83c015a94b35…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 08:49:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bd3f0d318f36619f0c45842a09d05d1c SHA-1: d5d386493018b5e362861583c4b65d1dcc6224df SHA-256: fd2e83c015a94b35b69362b4325fea7d6f7dfe17b7c5a4b905a1e0ba7d6cd955
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and a document body that attempts to lure the user into clicking on a link related to game hacks and cheats. The ML classifier strongly indicated maliciousness, and the presence of multiple suspicious URLs suggests a phishing or malware distribution attempt. No scripts were extracted, but the overall pattern points to a social engineering lure to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/835599320/how-to-get-tiktok-famous-for-free-game-hack In PDF document text
    • https://tanahlot.id/assets/CKImages/files/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/pokemon-go-free-083_GM1094591345.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-c9m_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-village-4_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52A5 24004 bytes
SHA-256: 81f8137a5f953e81da962581cd109b439122f10b0bcbedaf8313da9c9479c471
font_01_sfnt_off000089ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89AB 18248 bytes
SHA-256: 9d8c9ff8f23476e9e897d50e05ba1c89fe9a64794c9c08e4c2e4cb1c87253222

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