Malicious PDF — malware analysis report

Static analysis result for SHA-256 1afb02ce865d6464…

MALICIOUS

PDF

34.0 KB Created: 2021-06-18 22:10:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 81dc1e7071a4d4a49d24aca6492bbe1f SHA-1: 080df9794d686d96e45a44c7d61a4176c1b8fa34 SHA-256: 1afb02ce865d64645430d5ebb4ea416672d501515be514f1b7d9cfdebf28fbb2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and further malicious PDFs, masquerading as game hacks and free currency generators. The document body and heuristics indicate a lure for users interested in game exploits, which is a common tactic for distributing malware or phishing content. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/god-mode-roblox-cheat-engine-game-hack In PDF document text
    • http://kermas.eu/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/free-tiktok-followers-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://kermas.eu/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/how-to-get-verified-on-tiktok-for-free-2021_GM835599320.pdfIn PDF document text
    • http://kermas.eu/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/how-do-i-earn-robux_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/roblox-online-hack-2021_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/coin-master-mod-version-free-download-ios_GM406889139.pdfIn PDF document text
    • http://kermas.eu/images/fast-run-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/assasin-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/how-to-hack-roblox-and-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/roblox-hack-2021-youtube_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • http://kermas.eu/images/minecraft-java-free-download_GM479516143.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_off00002da4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DA4 22480 bytes
SHA-256: 41b817c8f1ae58b327c1dcd44b4b4f15555a86c7d796ce2c37adf98ce29d8799
font_01_sfnt_off00005fdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDC 19060 bytes
SHA-256: 1581f721b1bec0c2e0dbad3d86c4d1a874538ff5dcd7354c38e8159e5f9d4224

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