Malicious PDF — malware analysis report

Static analysis result for SHA-256 8de1307ca53ea97c…

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 11:48:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8c5f7f50b9f438a51f47541c931b3b62 SHA-1: c11e76619ef59d3b0c719d0373d2540f81227c98 SHA-256: 8de1307ca53ea97c60ce02b4998bd9931d789e5e0427305208e5640f03dcac8d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains multiple URLs pointing to sites offering game hacks and cheats, with a primary URL leading to a download for "coin-master-ios-gods-hack-game-hack". The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a call-to-action phrase suggests a lure to download potentially unwanted or malicious software. No scripts were extracted from this sample.

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-ios-gods-hack-game-hack In PDF document text
    • http://pustaka.bbppketindan.info/repository/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-gold-cards-link_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/roblox-dragon-ball-z-final-stand-level-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-really-fast_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-ios-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/coin-spin_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • http://pustaka.bbppketindan.info//repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.bbppketindan.info/repository/minecraft-toys-for-free_GM479516143.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_off00002f9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F9E 22868 bytes
SHA-256: 5b5359eca009a894027a51bd043b9ec6c56d34cd047e0024a0ae36bbd6ab40d9
font_01_sfnt_off000062f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F4 18180 bytes
SHA-256: 642649fa660d5d33d284a023a337dcb3c4c73b9ef69ab7456f9583ff25f59d3d

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