Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4ebcfbd131473db…

MALICIOUS

PDF

35.2 KB Created: 2021-06-20 01:15:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 97dd0d3af9c89b288c1ea016cc5f10e5 SHA-1: 6befc098116f8c4bc0a349e293885fc22b60bc0a SHA-256: d4ebcfbd131473dbe129cb01384ad7f20ef6f307c16ec51ba4d8174a6c5c8d4c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free generators, directing users to a malicious URL. The ML classifier strongly indicated maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the embedded link. No scripts were extracted, but the primary attack pattern involves social engineering via a deceptive link.

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.co/app/431946152/emojicode-roblox-2021-get-emojis-free-2021-d--game-hack PDF link annotation
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/dragon-riders-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/online-hacking-tricks-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/all-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/nike-roblox-shirt-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-not-for-sale-roblox-templates_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/hacks-para-tener-robux-gratis-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/scripts-free-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/getrobux-now_GM431946152.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • https://elearning.mtsnegeri1mojokerto.sch.id/__statics/gudangsoal/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000321e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321E 21668 bytes
SHA-256: ef90c393f8c820a1b1e62000baf1ebc05fa76fe584ce02b4ba90fa173adf13a2
font_01_sfnt_off00006182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6182 20064 bytes
SHA-256: 7048c8531879bbf2cc3d584980e931b4d8801f2e61ea4efa63f1f541b46d3d92

Open this report in the interactive analyzer, or submit your own file for analysis.