Malicious PDF — malware analysis report

Static analysis result for SHA-256 32b49b94dce284dc…

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 02:27:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b20d876583ea8f61ed08cc3b5993a892 SHA-1: 838c401db8bdf9dd89c226524a7bc2e8635cf9ae SHA-256: 32b49b94dce284dc93ec1286fac79d4a25cf52197f321f46e4cd2c64a7d9a23a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains an embedded URI pointing to a suspicious domain, which is highly indicative of a phishing or scam attempt. The ML classifier also flagged this PDF with high confidence. The document body, though partially garbled, contains text related to game hacks and free items, reinforcing the lure. The presence of numerous similar URLs further supports the malicious intent.

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/how-to-get-free-snacks-in-coin-master-game-hack In PDF document text
    • https://www.atrax.hr/files/cool-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-get-hacks-in-roblox-stuicd_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/how-to-get-free-roblox-on-your-phone_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/roblox-game-where-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://atrax.hr/files/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.urcouponsdeal.com/2019/03/coin-master-free-In 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_off00002ef5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF5 22700 bytes
SHA-256: 07c74b382b7e896b39f190a10101a5cd0571e0bb638bbb5a9af11d22d5191046
font_01_sfnt_off000061a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A0 18332 bytes
SHA-256: 9bfaebadd1c63bbcf8fae185af5d645a9ecdb7ad968488e86b545ec7ef79ab2e

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