Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9d710542777bea…

MALICIOUS

PDF

35.5 KB Created: 2021-07-03 13:28:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 08e09feb00e46bac7ba50aa59bc29789 SHA-1: c889377f37fd2f35fc50d3fd877b8dc9ae694b1a SHA-256: da9d710542777beaa72ae696987f7a08b43c0a5809d6709e3235e1a91deebac4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external URLs, including one identified as a malicious redirector. The document body and heuristic firings indicate a lure for game-related cheats or generators, likely to trick users into downloading malware. No scripts were extracted, but the embedded URLs and redirector heuristic 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/406889139/coin-master-free-spin-link-today-2021-game-hack In PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/insert-gear-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/jailbreak-robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/hacker-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/free-robux-today_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/robux-page_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/how-to-use-roblox-hacks-multiple-rbx-games_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/youtube-the-coolunique-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnkampak.sch.id/__statics/gudangsoal/files/krnl-roblox_GM431946152.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_off000032b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B4 22724 bytes
SHA-256: 8b987663a9b3b7fe5d918398b2ef9bf8b7561f0cb022f8da180ec0581c087f28
font_01_sfnt_off000065a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A4 19100 bytes
SHA-256: 87948dd456158924639af78db2b6f448ba4bec773812a2cc2fa62bc058a3e5dd

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