Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db21ed796b8606a…

MALICIOUS

PDF

35.1 KB Created: 2021-06-25 09:28:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ca513b9b7e72ce3572cd5d80f0935d84 SHA-1: 1d4a36bdaf27bccb1c2dcee92901e91627a7d1a2 SHA-256: 2db21ed796b8606aae9dbb8c08634e3e5e1117428d9f09c7735cd46717698e33
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure appears to be related to Roblox and Coin Master. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to a site that likely hosts further malicious content or exploits. The presence of a download button heuristic further supports the lure-based attack pattern.

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-tokyo-ghoul-bloody-nights-level-hack-game-hack In PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-robux-for-free_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/roblox-font-free_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/pubg-uc-mongolia_GM1330123889.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/monkey-free-robux_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/android-1-com-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/coin-master-village-3_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/hack-para-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/freer-tiktok_GM835599320.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-roblox-items-2021_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • https://tv-transvision.com/ckfinder/userfiles/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B1 21944 bytes
SHA-256: 879fa2ce5c6e0fea49d97abf3f4e00aefef08f83daab0c98f2b2ae9b4d586d7b
font_01_sfnt_off00006273.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6273 19652 bytes
SHA-256: 23ffb8decc8efe41aa4c1e29d5d1013434a9f72e3d13e865de382a555f34c4c0

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