Malicious PDF — malware analysis report

Static analysis result for SHA-256 cef2e6d75e7d660f…

MALICIOUS

PDF

43.9 KB Created: 2021-05-16 19:56:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 64ed4afb01efb82c59bcc5c46a647851 SHA-1: 2f872227ef8deb85fc1aa24cbb79dc15ab5dc598 SHA-256: cef2e6d75e7d660f1f4eb772461bbf163069f4015aba3e01520e3ed6f1aabe47
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector domains that ultimately lead to websites promising free game currency or hacks. The heuristic firings indicate these links are associated with malicious redirector infrastructure and a lure for game generators. While no scripts were extracted, the embedded links and the nature of the lures suggest a phishing or scam attempt designed to lead users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/rbxoffers-com-free-robux-game-hack In PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-game_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/minecraft-coins-free_GM479516143.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/get-free-robux-com_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coins-master-hacks_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/village-coin_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-cheat-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/dominus-roblox-free_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.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
stream_003_off00004972.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4972 28216 bytes
SHA-256: 86265b1baf17adb56e1f4775fdee06e57b254f024cd1c33688191eaae959dafc
font_01_sfnt_off00008978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8978 18276 bytes
SHA-256: 33587a0de9fe244dccc6feb4df3ae622cc669a227e305313b85abf77a5936fbf

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