Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d2f0809d4926125…

MALICIOUS

PDF

33.6 KB Created: 2021-06-26 05:53:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5d328f3863a46d7819e59bcafe53e108 SHA-1: 1b3760102bef13d9249057d90d688120aa269a79 SHA-256: 2d2f0809d4926125e348c05bd7b379ef50fcd01f9f081daf17cf83af00f542af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains links to known malicious redirectors and lures users with promises of free game hacks and currency. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting malicious sites. The ML classifier also strongly indicated maliciousness.

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/835599320/free-tiktok-followers-without-verification-game-hack In PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/how-to-hack-people-and-get-there-robux_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/robux-roblox-gratis-hackrar_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-generator-no-app-download_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/free-roblox-robux-codes-no-survey_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-hack-version-download-ios_GM406889139.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/best-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • http://www.duchem.ae/uploaded_files/userfiles/files/roblox-adopt-me-hacks-2021_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_off00002f04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F04 21744 bytes
SHA-256: e559655140a0cd34a3baf7b5c17d268b79630ce1df39ad5a5db8a41101d327f1
font_01_sfnt_off00005eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEC 18848 bytes
SHA-256: a6962a1c22e4c901e09cc79e54a35af6e59d852732f3ebf76052f8fdc15db483