Malicious PDF — malware analysis report

Static analysis result for SHA-256 e395401efda97226…

MALICIOUS

PDF

33.4 KB Created: 2021-07-04 12:28:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 649db7fdf7c09cd4da30b29549802e21 SHA-1: 7487e453a69362ccdce51384c128b6f7f2514b51 SHA-256: e395401efda972266e320cc5be672bae6ca0645380c05d2302c3c9df11509590
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a large number of embedded links, many of which are presented as download opportunities for game-related content. The ML classifier and the PDF_SEO_LINK_FARM heuristic strongly indicate malicious intent, likely to trick users into downloading malware or visiting malicious sites. The document's content and structure suggest a phishing or social engineering attack aimed at users interested in games.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 http://netcdn.tw/app/479516143/minecraft-maps-pe-free-download-game-hack
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/heroes-online-roblox_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/roblox-tycoon-hack-2021_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-coin-master-s_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-coins-coin-master-link-2021_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/cheat-roblox-apres-la-dernire-mise--jour_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-hack_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/coin-master-hack-mod-apk-2021-download_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/coin-master-fan-page-giveaway_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/cool-roblox-weapons-cheat-engine_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/hack-para-tener-robux_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/bloxpink-free-robux_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/daily-coin-master-free-link_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/coin-master-free-spins-through-coin-pop_GM406889139.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/earn-free-robux-for-roblox_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-robux-obby-no-password-2021_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-cool-boy-hair-roblox_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/freer-pro-tiktok_GM835599320.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-roblox-hacker-com-robucks_GM431946152.pdf
    • http://elearning.mialhidayahkotamadiun.sch.id/__statics/gudangsoal/files/free-robux-rewards_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ef2.bin
2d024df2bd327cc6a690eb1d823d132e008a37682355cc4ec6efac0c1bfe3fdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF2 21664 bytes
font_01_sfnt_off00005dec.bin
10b4adb4db883c55d3f439ff3d3cd4694c9c956be768705e88a0f2d3b984931b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEC 18908 bytes

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