Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3c818c753b03673…

MALICIOUS

PDF

41.7 KB Created: 2021-05-19 07:01:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 746c5e0e86e07e41c435118ec2a5989c SHA-1: a58cac9281271775177ac49c89be601a13ee8467 SHA-256: e3c818c753b03673bdbf841daabd5a89d0b22313344e269a93bc44832546e644
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one identified as a malicious redirector. The document body and heuristics indicate a lure for game hacks or generators, directing users to potentially malicious websites. The presence of multiple links and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/how-do-you-get-free-food-on-coin-master-game-hack In PDF document text
    • http://viemeo.fr/images/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/mathep_GM431946152.pdfIn PDF document text
    • http://viemeo.fr/images/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://viemeo.fr/images/robuxmatch-com-free-robux_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_003_off000044ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44EE 25992 bytes
SHA-256: 06826a41e30ef3ed8f4f3e9e2694bc0b7a29dc43581bb01f8ee1118abacdffb3
font_01_sfnt_off00007fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC2 18516 bytes
SHA-256: 557830b2ad610ffe463328ddee8e306bc821290f27b0270072ca1ff007a6db1d

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