Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffa384a6bbeba123…

MALICIOUS

PDF

36.9 KB Created: 2021-05-21 09:53:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3bbff38b674ef229e35edf5e12b4c951 SHA-1: c400cf205571f8e898277a646709cc8b90aadd66 SHA-256: ffa384a6bbeba123ee198da5bd761ce3a81906686782c605983d862d06ca9a91
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, disguised as a 'free generator / game hack'. The document body and embedded links suggest a lure for users seeking free game items or hacks, which is a common social engineering tactic. The ML classifier also flagged this PDF as malicious.

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/479516143/can-you-download-minecraft-for-free-game-hack In PDF document text
    • https://www.bridalguide.com/sites/default/files/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-homepage_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
    • https://www.bridalguide.com/sites/default/files/files/claim-free-spins-coin-master_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_off000036d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36D8 24232 bytes
SHA-256: 677626738aacc5625cadd0fa812d8581066317bd18f539091d9575b90e0af99d
font_01_sfnt_off00006e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E0D 18592 bytes
SHA-256: ed5684d9a13e4aff878e16593a586bb1b0a035d61c002246dac68e4b539701c0

Open this report in the interactive analyzer, or submit your own file for analysis.