Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac068c6d8315ef38…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 11:57:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 610e5530c1fb5793b9c865a1c52a60a3 SHA-1: ddbd35610d9fb6d32d21be608a293948ddb94c49 SHA-256: ac068c6d8315ef3880f704728f4b459c6a91658160675f52973d9414ff90d8d2
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 0.9865

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/406889139/150-free-spins-coin-master-game-hack PDF link annotation
    • https://www.insol-europe.org/uploads/files/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/client-minecraft_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/how-to-change-your-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/coin-master-reward-link-2021_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/by-pubg-uc_GM1330123889.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/coin-master-unlimited-coins-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://www.insol-europe.org/uploads/files/files/minecraft-114-4-download-free_GM479516143.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_off0000526d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x526D 26128 bytes
SHA-256: 30dbfeb87198e417ab1a13e1e3c0f3c0d5fcf139ae86bc978ed6a40f8627216a
font_01_sfnt_off00008cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDB 18300 bytes
SHA-256: a3dc9a6d4a02af618959bbf9fe7c329c9f9d103a3a18e22a11c930be4fd02f71

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