Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a110e436953d587…

MALICIOUS

PDF

43.5 KB Created: 2021-05-11 09:14:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d08c953d8fd16ec98d5abfbd1bdd3e29 SHA-1: 30f9101d2a22dd586d9bc5a320279d13358175e1 SHA-256: 6a110e436953d587db4bea9f728a3e035628e1ec97ab9ddfb314b76ac010a3e2
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically targeting users with lures related to game hacks and cheats. The presence of a visual download button further supports the malicious intent of tricking users into downloading potentially harmful files. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 3

  • 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.xyz/app/479516143/minecraft-1.16-free-game-hack In PDF document text
    • https://www.knjizara-harfa.rs/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/coin-master-apk_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/roblox-hack-app_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.knjizara-harfa.rs/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4844 24148 bytes
SHA-256: e2c96b5f1e0da136b210a9da5e22e3ba1b9bed374be779a51065c293555c7037
font_01_sfnt_off00007e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E9B 2856 bytes
SHA-256: 8c5d9bcb386d88c7f99323d8d482e46ea21dea038a5b842744dd5d39b26b2c44
font_02_sfnt_off00008872.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8872 17908 bytes
SHA-256: 8310a8a70ae495dc6c5eef129ed79833fdc59e5dcfd7da15d006a4c6032bb3ed

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