Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c7d30654fe24e4b…

MALICIOUS

PDF

36.6 KB Created: 2021-05-21 10:39:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8305ea0a69177cd390c1f4759f000bc0 SHA-1: 994392978bdd0f2fed9a94f19b716b75fd48156e SHA-256: 9c7d30654fe24e4b2ea5816b054cff2121ff99e7e298b4f47aaf51d959b2262f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of free game items, a common social engineering tactic. The document body and embedded artifacts suggest a lure for a 'game hack' or generator, which is likely a phishing or malware distribution scheme. While no scripts were explicitly extracted, the PDF structure and heuristics indicate malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/431946152/roblox-free-clothes-codes-game-hack In PDF document text
    • https://elite-house.su/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • https://elite-house.su/images/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://elite-house.su/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elite-house.su/images/how-to-get-free-spins-on-coin-master-2021_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
stream_002_off0000338a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x338A 25264 bytes
SHA-256: 59406c3c77a4fd349c09dea362751740418eb9365c4d0407111b6ef108e4992c
font_01_sfnt_off00006d7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7C 18392 bytes
SHA-256: d8b17fa3f29c5fc3b2ca0cecc93d61ab3a50b68dc1f93f0739daeae1c5528549

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