Malicious PDF — malware analysis report

Static analysis result for SHA-256 4395fff44990d5bf…

MALICIOUS

PDF

40.6 KB Created: 2020-06-07 02:44:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4da7009a2c3b6feb1971ad9ee63c6070 SHA-1: ca9677729b62403a1b8b4281addfda945d0b4edd SHA-256: 4395fff44990d5bf340054f798abd4ce4bdfbc7fa8a2d6d0ddff052c58cb3cd1
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary URL, http://ps7kow.bdgct.com/uploads/1/3/1/8/131871720/131871720.html#c%25C3%25A1ch+%25C4%2591%25E1%25BB%2583+t%25C4%2583ng+th%25E1%25BB%2583+l%25E1%25BB%25B1c+trong+gunny+mob, appears to be a lure for game-related content, suggesting a potential phishing or scam attempt. The large number of generated SEO links indicates a coordinated effort to distribute malicious or misleading content.

Heuristics 3

  • 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.
  • 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://ps7kow.bdgct.com/uploads/1/3/1/8/131871720/131871720.html#c%25C3%25A1ch+%25C4%2591%25E1%25BB%2583+t%25C4%2583ng+th%25E1%25BB%2583+l%25E1%25BB%25B1c+trong+gunny+mob
    • http://saltcitysulcata.com/uploads/1/3/0/6/130639318/febovolati.pdf
    • http://janroberts.yoga/uploads/1/3/0/6/130621516/selogumatajema.pdf
    • http://tjsk9academy.com/uploads/1/3/0/8/130874292/0aa7eb.pdf
    • http://untoldrunnercoaching.com/uploads/1/3/0/5/130539841/nikomajopadumimotabi.pdf
    • http://sharsmetalart.com/uploads/1/3/1/3/131381101/lesupogikudil.pdf
    • http://tewnctopicals.com/uploads/1/3/0/6/130605179/zavilolujunado.pdf
    • http://webdisk.lanternhousedogcare.co.uk/uploads/1/3/1/1/131164312/pefoxunesi.pdf
    • http://papaspropwarehouse.com/uploads/1/3/1/1/131164475/a028e5f811.pdf
    • http://prime-com.ca/uploads/1/3/0/5/130550679/tugixilawax_takanakasi.pdf
    • http://rancemotorsports.com/uploads/1/3/0/6/130603725/fb981b17719b279.pdf
    • http://maltaviews.com/uploads/1/3/1/4/131483254/nilotul_jujabe_vurega_nozakejap.pdf
    • https://xunuzivediji.files.wordpress.com/2020/06/98118227460.pdf
    • https://jisabiwofif966812601.files.wordpress.com/2020/06/bugezuremenerotap.pdf
    • https://kebusura.files.wordpress.com/2020/06/tarefakexiditolewitiw.pdf
    • https://mixogeg.files.wordpress.com/2020/06/15533909994.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006663.bin
d181c1a609ccebc5e92ec1a723fdfbfe1564fdd56705a6b03671b4333ee49599		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6663 21396 bytes

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