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) First seen: 2026-05-08
MD5: 4da7009a2c3b6feb1971ad9ee63c6070 SHA-1: ca9677729b62403a1b8b4281addfda945d0b4edd SHA-256: 4395fff44990d5bf340054f798abd4ce4bdfbc7fa8a2d6d0ddff052c58cb3cd1
96 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.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 PDF link annotation
    • http://saltcitysulcata.com/uploads/1/3/0/6/130639318/febovolati.pdfIn PDF document text
    • http://janroberts.yoga/uploads/1/3/0/6/130621516/selogumatajema.pdfIn PDF document text
    • http://tjsk9academy.com/uploads/1/3/0/8/130874292/0aa7eb.pdfIn PDF document text
    • http://untoldrunnercoaching.com/uploads/1/3/0/5/130539841/nikomajopadumimotabi.pdfIn PDF document text
    • http://sharsmetalart.com/uploads/1/3/1/3/131381101/lesupogikudil.pdfIn PDF document text
    • http://tewnctopicals.com/uploads/1/3/0/6/130605179/zavilolujunado.pdfIn PDF document text
    • http://webdisk.lanternhousedogcare.co.uk/uploads/1/3/1/1/131164312/pefoxunesi.pdfIn PDF document text
    • http://papaspropwarehouse.com/uploads/1/3/1/1/131164475/a028e5f811.pdfIn PDF document text
    • http://prime-com.ca/uploads/1/3/0/5/130550679/tugixilawax_takanakasi.pdfIn PDF document text
    • http://rancemotorsports.com/uploads/1/3/0/6/130603725/fb981b17719b279.pdfIn PDF document text
    • http://maltaviews.com/uploads/1/3/1/4/131483254/nilotul_jujabe_vurega_nozakejap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://xunuzivediji.files.wordpress.com/2020/06/98118227460.pdfIn PDF document text
    • https://jisabiwofif966812601.files.wordpress.com/2020/06/bugezuremenerotap.pdfIn PDF document text
    • https://kebusura.files.wordpress.com/2020/06/tarefakexiditolewitiw.pdfIn PDF document text
    • https://mixogeg.files.wordpress.com/2020/06/15533909994.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6663 21396 bytes
SHA-256: d181c1a609ccebc5e92ec1a723fdfbfe1564fdd56705a6b03671b4333ee49599

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