Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd6ada074eba1382…

MALICIOUS

PDF

33.6 KB Created: 2021-06-29 11:20:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 62a32dde23217c408d5e7933c5ba78e7 SHA-1: af032a62e9a30265f16806d83e6d43cc26f3341d SHA-256: fd6ada074eba13822c3b32684fcf9ecf2c9e5c6012f21bf9886c3f2146fac05e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a redirector hosted at 'netcdn.co', which is flagged as malicious. The document body and embedded links suggest a lure for game hacks or generators, a common tactic for phishing or malware distribution. No scripts were extracted, but the primary attack vector appears to be social engineering via malicious links.

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/hspart-ima-game-hack In PDF document text
    • http://bw.ac.th/userfiles/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/how-to-hack-into-roblox-develpor-tool_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-roblox-thumbnail_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/free-wins-in-anarchy-roblox_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/pokemon-go-free-latest-version_GM1094591345.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://bw.ac.th/userfiles/files/coin-master-free-spins-link-2021-no-verification-deutsch_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_off00002e58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E58 22320 bytes
SHA-256: 78786b3975bcae12730fa7257a104c9455af81a442952b957fae7d6d55daeb8f
font_01_sfnt_off0000601c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601C 18444 bytes
SHA-256: ee747f759eb4b5028464b9d2b71c24c31e6bf8637940e1f02dc85aa3407f7d6f

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