Malicious PDF — malware analysis report

Static analysis result for SHA-256 793b8c937c680577…

MALICIOUS

PDF

33.7 KB Created: 2021-07-07 01:13:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 46804fdbfe7319c06e47ce0c02a03870 SHA-1: 4959e2821ad3dc69705bc9c7c24d5b9b64d81e50 SHA-256: 793b8c937c680577600937cd503aef144adca1d217339d71ad457cbee0853887
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically advertising game hacks and generators. The document body and heuristics indicate a lure to download or access potentially unwanted or malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt.

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/479516143/scaffold-minecraft-hack-game-hack In PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/roblox-hack-free-2021_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/how-to-get-free-robux-no-hack-or-survey_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/cheap-free-easy-robux_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/free-coin-master-gold-cards_GM406889139.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/robux-free-gift_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/hack-robux-gratis-como-tener-robux-gratis-en-roblox_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/hack-vampire-hunters-2-roblox-fly_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/blonde-hair-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/cheat-roblox-strucid_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/how-to-get-free-roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.delhihomeoboard.in/uploaded_files/userfiles/files/free-robux-2021-sans-verification_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
stream_002_off00003081.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3081 21880 bytes
SHA-256: d621e191329cce2545a4e1a6b08afc1371bfcea5ade6aa1dfc4e5b0a76734604
font_01_sfnt_off000060c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C6 18416 bytes
SHA-256: 9b92067fa4c44ca875f0f74c7263e73a9dafc9ca5c6c8fe94a9a1870cb753e0d

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