Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a78fd4ed258bd22…

MALICIOUS

PDF

35.7 KB Created: 2021-06-20 06:05:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d137ea5624be006a03e5d745458ce205 SHA-1: f393e9223094bfccd3d4623dfae69928a866beda SHA-256: 1a78fd4ed258bd2231b4b7a55a7880fb622b09986fe7157439450855c68f9089
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for a 'free generator / game hack' which redirects to known malicious infrastructure. The document body and embedded URLs strongly suggest a phishing attempt to trick users into visiting a malicious site. While no scripts were explicitly extracted, the nature of the PDF and its embedded links point towards a common phishing or redirection tactic.

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/roblox-profanity-cheat-game-hack In PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/pubg-uc-cheap-price_GM1330123889.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/free-robux-codes-apk_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-get-free-robux-100-real-pc_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-do-you-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/como-descargar-roblox-hackeado-para-android_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.aeroplanemarket.com/uploaded_files/userfiles/files/http-roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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_off000031e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31E1 23252 bytes
SHA-256: 67d64b46ff478e68d18f8af314d52f1cbcb15df408329fa249304a4fd57cbe02
font_01_sfnt_off00006611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6611 19212 bytes
SHA-256: f04e045a14fb553e2d0d78c73f8d3272ef77b49268d8de4616713c3736a1a12d

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