Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d768d8b2e3f7205…

MALICIOUS

PDF

34.6 KB Created: 2021-06-27 23:40:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7db99f5990bbf169fb542232ebadb021 SHA-1: afe8fe8823b36b9d14a0239f6a15c8207e977da5 SHA-256: 9d768d8b2e3f7205ad02c8ac6a01bb49f9394d87785ce355576aebb3539ecf83
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed to lure users into downloading potentially malicious content by offering game hacks and free in-game currency. It contains multiple links to redirectors and other PDFs hosted on suspicious domains, indicating a phishing or malware distribution scheme. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into clicking through to malicious sites.

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/roblox-hack-2021-pc-game-hack In PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/roblox-hack-that-lets-you-swear_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/gow-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/how-to-use-cheat-engine-on-roblox-swordburst2_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/roblox-hacks-assassin_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/free-robux-mod-roblox_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/free-tiktok-comments_GM835599320.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://kalautsav.bepcssa.in/ckfinder/userfiles/files/wish-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
font_00_sfnt_off0000305b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305B 22108 bytes
SHA-256: fdb4a09b732cf4842bd6ef96410c248efaf73e4282f7fa2d10598e17858b5ad1
font_01_sfnt_off00006161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6161 19212 bytes
SHA-256: c1503a890b6f1691cea854fd589c142ce078391d84c5b280c4603b5848fdaeaa

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