Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd1160d3707f99f1…

MALICIOUS

PDF

43.1 KB Created: 2021-06-03 05:46:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 66237ebd7ea1537dc3c6f54135a34ebe SHA-1: f1fae8b8bf755ac9470a4db258b11f0bafbb353f SHA-256: dd1160d3707f99f1ed7321530eb0235464c782cba3c7f0d1bf2ead36fe06320c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/coin-master-download-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/client-minecraft_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-discord_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-fun_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-online-android_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-ios-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-make-a-roblox-group-for-free_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-backpack-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-2021_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
stream_004_off0000502a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x502A 23884 bytes
SHA-256: 29dce38a7e6cdfad5cb73ad78dbbadb11ffe9e3c9f2a62512e1988be13cf34bf
font_01_sfnt_off00008612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8612 18124 bytes
SHA-256: 5249e296d4e98cbf63458d60065d08f788638b222f85d6c58d160e1a36990528

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