Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d324ab126bd4c22…

MALICIOUS

PDF

45.4 KB Created: 2021-05-16 12:08:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1e5bd732e6a1eb7d484b6a935b855815 SHA-1: 2d738add8df86d4a6742e5b92a249d96bda29e0a SHA-256: 8d324ab126bd4c227ba8c2b209c29f9a175a1ca16216509c239674d60bc3df6c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and scam sites, masquerading as game hacks and free item generators. The heuristic firings indicate that the document is designed to lure users to malicious infrastructure. While no scripts were explicitly extracted, the PDF structure itself facilitates these malicious redirects, likely intended to lead to further compromise or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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.xyz/app/406889139/coin-master-game-hunter-game-hack In PDF document text
    • http://deyuan-pc.com.tw/images/omplete-surveys-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/how-to-get-free-spins-on-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-mojang-account-with-minecraft_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/minecraft-menu_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/roblox-robux-page_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-free-card-link-today_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-spin-coin-master-online_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b82.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B82 25872 bytes
SHA-256: cdfa42afb29d502a5f914a7fa46890c6bc570d44e345231ee9b83e1c93bf29a7
font_01_sfnt_off000085f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F5 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008fe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE0 17944 bytes
SHA-256: e9797648e833dbfa666635f32d7367ca0739e8c750ac532ad8234daf7d16a172

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