Malicious PDF — malware analysis report

Static analysis result for SHA-256 da56a060435ca21f…

MALICIOUS

PDF

45.5 KB Created: 2021-06-11 00:03:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6cf5f79b9e1e7251c8c195a6bf5b936b SHA-1: 07748cb1340dab9218945c000e5e1139399538f5 SHA-256: da56a060435ca21f7cf93d724a7715ea2a4b361a471a9526f46fb1da1ce458f0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one that redirects to malicious infrastructure related to game hacks and exploits. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the embedded URLs and the nature of the lures suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/whats-the-best-free-roblox-exploit-game-hack In PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/minecraft-redeem-code-free_GM479516143.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-do-you-get-free-robux-no-hack_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-to-get-any-item-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.shopinkart.co.in/uploaded_files/userfiles/files/how-to-get-free-robux-games_GM431946152.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
stream_004_off00005216.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5216 25724 bytes
SHA-256: 77a90eac28a8247bc82f5e5c21c1d77d1fd067ea3845ff276a10d1927a55b5f0
font_01_sfnt_off00008d62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D62 18940 bytes
SHA-256: 359565678e67e2a7559246ba31d56754884a60de4214a507226744b7957e51f4

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