Malicious PDF — malware analysis report

Static analysis result for SHA-256 483f16b806e31f98…

MALICIOUS

PDF

35.7 KB Created: 2021-06-26 01:58:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e8a4190a85f33d58be2222eb7c4c2533 SHA-1: 7e4c3a987e93126b2df9f08afa875802b0731cde SHA-256: 483f16b806e31f983f4f7710f70504f0682f44c6fd471d687a977ec0c446a69a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts numerous other PDFs with similar deceptive content. The ML classifier strongly indicates maliciousness, and the document structure is consistent with a phishing or scam campaign.

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/blocky-world-free-robux-game-hack In PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-hack-roblox-tycoon-money_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-roblox-roblox_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-lawn-mower-simulator-hack_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/earn-rbx_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-doing-nothing_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-generator-no-surveys-2021_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robloxs-birthday-cards_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-flee-the-facility-hack_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.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
stream_002_off00003124.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3124 22968 bytes
SHA-256: 5cec4b14b349b01046954b5812523fd853d3c487aa296e439e25e4bb740a90f1
font_01_sfnt_off00006509.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6509 19512 bytes
SHA-256: 452a27b81d1f9b61a0f051ffc15880ff9bcbb1580cde702e0e4117cd7410acf3

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