Malicious PDF — malware analysis report

Static analysis result for SHA-256 9424f0fa4da2a91f…

MALICIOUS

PDF

37.3 KB Created: 2021-05-24 18:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1e6c8befa89a9facd2eb9cb00774a234 SHA-1: d47c0495cab1e2130b1eb9ef6a6279e18f91e8bd SHA-256: 9424f0fa4da2a91f2ba5d9f9f5ab80c9aa0cefedd7ba5e80eee63d5261fff09d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as a lure for game-related hacks. The primary link directs to a site offering a 'free generator / game hack' for Minecraft, which is a common social engineering tactic. The ML classifier also strongly indicated maliciousness.

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/how-to-download-minecraft-for-free-on-iphone-game-hack In PDF document text
    • http://septik-centr76.ru/images/free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://septik-centr76.ru/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://septik-centr76.ru/images/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://septik-centr76.ru/images/pubg-uc-lebanon_GM1330123889.pdfIn PDF document text
    • http://septik-centr76.ru/images/free-tiktok-likes-trial_GM835599320.pdfIn PDF document text
    • https://education.minecraftIn 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_off000035ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35AB 25612 bytes
SHA-256: c2adb010e8b464a0677889adb31d62bc4ba2429821f4047a9fdb76bd5e9a4a72
font_01_sfnt_off00006fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA3 18632 bytes
SHA-256: a38ec870b75b85e502f421fe1ead362eb1db7184f5387a13d9ce5f1a3d5be23c

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