Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ba79295f75e7f62…

MALICIOUS

PDF

35.4 KB Created: 2021-07-10 00:22:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9a46e9bdd8bdf0ab8ce4d93e68948641 SHA-1: ac35544c0f93daf88deda197b3dcdab440e4e41b SHA-256: 6ba79295f75e7f62aac4f41d944e0d9996ecca3041b1a424204ec3e0b20c4120
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free spins in Coin Master, directly linking to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. While no scripts were explicitly extracted, the presence of an external URI and the ML classification suggest the document is designed to lead the user to download a secondary payload.

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/get-free-spins-coin-master-2021-game-hack In PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-c9m_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/free-robux-100-works-fast_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/pubg-uc-trick_GM1330123889.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-hack-roblox-robux-with-cheat-engine-62_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-laptop-easy_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-how-to-through-walls-hack-new-2021_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/robux-pastebin-hack-no-waiting_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/free-roblox-birthday_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/free-auto-clicker-for-roblox-ios_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/free-robuxcom-scams_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/free-diamonds-coin-master_GM406889139.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/roblox-hack-sahrbite-pastebin_GM431946152.pdfIn PDF document text
    • https://www.virajafashionista.com/uploaded_files/userfiles/files/free-roblox-from-gor-rs_GM431946152.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
font_00_sfnt_off000032ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32AB 23116 bytes
SHA-256: 70de7afd287792571d27e73a4095e7e6c8a58c5bed465d1b464b19958bdfe06c
font_01_sfnt_off000066b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B4 18576 bytes
SHA-256: 47068641d4cd5afad495b2744cbb78709b2a1d88425159384b1e35df59296f67

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