Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fd684fe7c5c5e21…

MALICIOUS

PDF

35.5 KB Created: 2021-05-22 23:36:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f598925320aad18792a36a108520fd2b SHA-1: 44bea9c6b8f9bc9d429a8531a22ac0d8b9a9732f SHA-256: 7fd684fe7c5c5e21a424790f0da6e8657a7ca6993b44a5b16dc2b2fcf2ad394e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links that redirect to malicious infrastructure, specifically advertising a 'free generator / game hack'. The document body and heuristics indicate a lure for game-related cheats, which is a common social engineering tactic. The embedded links likely lead to further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

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/free-spins-and-coins-on-coin-master-game-hack In PDF document text
    • http://www.gadanie.lv/images/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/robloxfun-com-robux_GM431946152.pdfIn PDF document text
    • http://www.gadanie.lv/images/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://www.gadanie.lv/images/free-robux-roblox-promo-codes_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
stream_002_off00003200.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3200 24468 bytes
SHA-256: 128aeb79b0ffad0079018f787498a637c3ee72584289787cb844466be1cfb1dc
font_01_sfnt_off00006a44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A44 18060 bytes
SHA-256: 64690fddacb88a1b87eb78a3bf181b542b813998c8d2539429c7660090ba79fa

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