Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d325bd88b2a39c5…

MALICIOUS

PDF

35.6 KB Created: 2021-07-06 12:21:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 69431f490ea78a0082e053cdc300e167 SHA-1: 1aa0d9d429c8913f2750dbb70db784dcd647d15a SHA-256: 7d325bd88b2a39c5239ce901fee5f95cf7e5b3f0298048921df95e90c9c5287a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to a known malicious infrastructure, specifically promoting 'game hacks' and 'free spins'. The document body and heuristics indicate a lure to trick users into visiting these malicious URLs, likely for further exploitation or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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.tw/app/406889139/coin-master-free-spins-and-coins-daily-game-hack In PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/minecraft-free-exe_GM479516143.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/how-to-hack-on-roblox-jail-break_GM431946152.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/hack-jailbreak-roblox-police_GM431946152.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/coin-master-link-app_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/pokemon-go-free-vs-premium_GM1094591345.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/tiktok-free-book-hack_GM835599320.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/google-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.itmnc.com.au/uploaded_files/userfiles/files/minecraft-for-free-apk_GM479516143.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_off000034aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34AA 22520 bytes
SHA-256: 249c03e1eb78a71c9e58b6b6df7f1a57bce5c101e78d3aac0cc3d18d5942181b
font_01_sfnt_off000066da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66DA 18772 bytes
SHA-256: 19a32b246d97102996ae87c3480bab741072fa74bbecf67b9c68c4bb2203f36d