Malicious PDF — malware analysis report

Static analysis result for SHA-256 801356b8b83be747…

MALICIOUS

PDF

33.9 KB Created: 2021-06-26 20:01:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3cc682231f4dc5b278ddf024ef83405a SHA-1: add99fcea62d28e468d1f15596341d8fea22643d SHA-256: 801356b8b83be747109627d3ec786de2c583baf67b082a03e957bdb0f69a37f8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors and sites offering game hacks, strongly indicating a lure for users to download further malicious content or engage in phishing. The ML classifier also flagged this PDF with high confidence. The document body and embedded URLs suggest a scam related to free game currency or hacks.

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.co/app/431946152/donating-free-robux-live-game-hack In PDF document text
    • http://astdubai.co/userfiles/files/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-no-card-roblox-card_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/robux-cheat_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-coin-master-credit_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://astdubai.co/userfiles/files/coin-master-official-page_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
font_00_sfnt_off00002d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2C 22320 bytes
SHA-256: c77126fbcf48a8ee6f7210157981cdcbe07f9cce67e8b1c03db3a66a2cda5e3b
font_01_sfnt_off00005eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EFF 19224 bytes
SHA-256: 4bfe57ae421ab6b580a34683cb92840709c77026879a045635bdf9b800035294

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