Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3dedc071792ed21…

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 23:37:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1141dfd79172dd4a566ca4c5a201056b SHA-1: 555e87530c202aee5d396f5ab74bc2fc0194bc72 SHA-256: e3dedc071792ed2188e8c5551f3332364defcd497aded364e38fb84dbc3c1565
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 0.9980

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 http://netcdn.tw/app/431946152/free-robux-easy-game-hack PDF link annotation
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/code-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-coins-on-assassin-roblox_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-india_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-roblox-shirts-to-upload_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-in-cheat-ingine-work-in-pizza-place_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/play-roblox-free-online-unblocked_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-get-free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/get-robux-now_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/tiktok-free-views_GM835599320.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/cool-tshirts-for-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/john-doe-roblox-hacke_GM431946152.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearningmtsn1tanggamus.sch.id/__statics/gudangsoal/files/roblox-donload-for-free_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
font_00_sfnt_off0000313b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313B 22040 bytes
SHA-256: 7df65487030d5849ca1ef50b9c9f052957fb87922a966c7a6432ca0790820902
font_01_sfnt_off0000622f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622F 18896 bytes
SHA-256: 08474bdc287d3651cd8985bef3354d1e01eac2de28e8a43cfa13c093cfea4674

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