Malicious PDF — malware analysis report

Static analysis result for SHA-256 89515219c4916d3b…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 00:47:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 96c636807e6f0d3643c03bcba04d2ac0 SHA-1: 3117e03f88a78fc4408f0f1a6a67273bc78da27c SHA-256: 89515219c4916d3b37653aab1a630b3f9c8061e9cce599ba094c875a08fa7b3c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free currency generators. The primary lure appears to be related to 'Coin Master' and 'Roblox' games. The document body explicitly contains the malicious URL, indicating a direct attempt to lead the user to a potentially harmful site.

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/all-links-for-free-spins-coin-master-game-hack In PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-hack-apk-with-fb-login_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-1m-robux-hack_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-arcane-adventures-cheat-engine-windows-10_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-robux-for-kids-100-working_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/is-it-possible-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/reddit-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/hacks-download-for-roblox-for-roblox_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://itamleek.net/uploaded_files/userfiles/files/worst-client_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
stream_002_off0000317d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x317D 22872 bytes
SHA-256: 459809a92510b67a9f3b3f15dc954230dbb8b6ec4676dcb5472ffb471f4ff812
font_01_sfnt_off000064a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64A7 18420 bytes
SHA-256: 47791595b4d061703bf6b1b6b61bc662de0dc82d92598e187f643983d6aa378f

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