Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee5ba05b93fc5f7d…

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 07:17:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 02a2b4c7e451996e4578e41989bd283e SHA-1: d8c3e3186436edb2e152d8023c2375a08e9abd77 SHA-256: ee5ba05b93fc5f7d9a1acd70af469cdbf76a628b74bef8e3eb11e99cf4f4f0b5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting "game hacks" and "free spins". The primary lure URL is https://netcdn.online/app/406889139/free-spins-coin-master-2021-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering tactic to drive users to potentially malicious content, likely as a first stage for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/406889139/free-spins-coin-master-2021-game-hack In PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/roblox-c9m_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-hair-roblox_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://klinikdentalestetic.com/ckfinder/userfiles/files/minecraft-free-no-virus_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005347.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5347 24928 bytes
SHA-256: 9b353d38b81fcdb0bd57a472634bb36c9565e1e39631a4d19cea0e205c8e7f47
font_01_sfnt_off00008be5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE5 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00009597.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9597 18288 bytes
SHA-256: 9732707b45c862b7a6ef8ea2418900def9be3650c6b325207d932644f64622ad

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