Malicious PDF — malware analysis report

Static analysis result for SHA-256 629e1965960d74df…

MALICIOUS

PDF

48.8 KB Created: 2021-06-09 05:10:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bd9feadfbc3486f332ac889810d2263a SHA-1: 5b82e965f30d79a8ac3cb38717870e292f1f2b21 SHA-256: 629e1965960d74dfab7ba873b2d8a52e147c14e001db4f19aa265d23887957ec
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as content related to game hacks and generators. The document body and heuristic firings indicate a lure to click these links, which likely leads to further malicious content or phishing pages. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/how-to-get-free-robux-and-tix-on-roblox-youtube-game-hack In PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-robux-2021-hack_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/tiktok-free-hearts-apk_GM835599320.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-get-com_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/is-minecraft-vr-free_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/kachifpro_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/robux-gratis_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/how-to-get-a-free-gear-in-roblox_GM431946152.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://repository.stikesindramayu.ac.id/repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051f7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51F7 25756 bytes
SHA-256: 9461e333e02a207081ec3fcd37772036ef1a11c37ddeeb54bf5598ef0c715592
font_01_sfnt_off00008d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6F 3940 bytes
SHA-256: 1c2a47a1d3c144fd0a5538390da3393966561fed514a9bf6e86d1c3edafd3bcd
font_02_sfnt_off00009a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A49 18812 bytes
SHA-256: edf7b0eadbaeff4b497c5c50dacbd3b64fed4b3203107e29059cdbfde2762ab7

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