Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1c5c9229fcfb78b…

MALICIOUS

PDF

39.3 KB Created: 2021-05-21 21:16:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0c5791079f88993ff6a0809498f4a6ed SHA-1: d9b2658c5f73924bd6edf1f0503d104ace6d5764 SHA-256: f1c5c9229fcfb78b1388b334a6aae884dc68c206270c26da703c61e14cace7b9
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 game hacks or generators. The document body explicitly contains the URL 'https://netcdn.xyz/app/479516143/minecraft-fly-hack-game-hack' and a call to action 'CLICK HERE TO ACCESS MINECRAFT GENERATOR', indicating a phishing or social engineering attempt to trick the user into downloading a payload. The presence of embedded URLs and the ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/minecraft-fly-hack-game-hack In PDF document text
    • http://bressanassessoria.com.br/images/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/village-coin_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-levels_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_002_off0000376f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x376F 25124 bytes
SHA-256: a0678a294429df28973e99f44f57d0b80eb7b0b34dda569e54b650733acebc32
font_01_sfnt_off00006f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F25 2892 bytes
SHA-256: c2578a292634a901613c1dd9f9883dd4930e6811e59ae03d696f263e56ea17b4
font_02_sfnt_off0000790f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x790F 17992 bytes
SHA-256: 06651707645ad1f4ebda8b3f746ca430a0b9618d46277a77061ba05985c34688

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