Malicious PDF — malware analysis report

Static analysis result for SHA-256 ace0450660014065…

MALICIOUS

PDF

32.6 KB Created: 2021-07-19 03:26:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ab51cd1e495210311ebc4b2022645236 SHA-1: 91d82ade0b663e9ba393d2e330fcddc7ef3e5968 SHA-256: ace04506600140652839f54d243017e023065080c6acff1537694269e38550cc
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious websites, masquerading as game hacks or generators. The heuristic firings confirm these links point to known malicious redirector infrastructure. The document body text and embedded URLs strongly suggest a lure for users seeking in-game currency or cheats, leading them to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9933

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 http://netcdn.tw/app/406889139/free-spin-coin-master-link-2021-game-hack In PDF document text
    • http://fiur-malermeister.de/images/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://fiur-malermeister.de/images/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://fiur-malermeister.de/images/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://fiur-malermeister.de/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://fiur-malermeister.de/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://fiur-malermeister.de/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://fiur-malermeister.de/images/free-robux-card-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
font_00_sfnt_off00002b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B94 22252 bytes
SHA-256: 1386f45f078cf16ddd11e1327217580966ee753f39c46cc68ea9b69ea134628d
font_01_sfnt_off00005cd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD9 18456 bytes
SHA-256: e9900cc34792e9e10189734f2c0a95be85fa7d2c8d6cb23872c5da80ce816735