Malicious PDF — malware analysis report

Static analysis result for SHA-256 90c5a269d5ea7c13…

MALICIOUS

PDF

42.1 KB Created: 2020-08-16 23:13:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 374d454912894e2e8c44d1f2a13642fc SHA-1: 6255878a4532ce93b91e4e6183a71d0ccfd114a1 SHA-256: 90c5a269d5ea7c1396b5dfb7e45b8432b841b1a87d4154f5897d4f1198c4faaf
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link to `https://ttraff.cc/pify?keyword=japan+visa+application+form+sample+with+guarantor`. This indicates a phishing or scam attempt, likely to redirect users to malicious content or further phishing pages. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://ttraff.cc/pify?keyword=japan+visa+application+form+sample+with+guarantor In PDF document text
    • http://files.rmbscenic.com/uploads/1/3/1/4/131483685/misaw-xesaxinekuxa-nikonozelemip-mipakat.pdfIn PDF document text
    • http://files.skinfitsd.com/uploads/1/3/2/6/132681294/pumepinetigexen.pdfIn PDF document text
    • http://files.themilvos.com/uploads/1/3/1/3/131398487/ribuvago.pdfIn PDF document text
    • http://jepixukaj.tyewinkinmink.com/uploads/1/3/2/7/132741099/4928530.pdfIn PDF document text
    • http://files.dalewoodbaptistpdo.org/uploads/1/3/0/7/130776822/a608b5a3e0154.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/pagokujaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/civic_engagement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6410/6901/files/thetford_cassette_toilet_instruction_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/doladapifabutivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9825/8088/files/visubetekutasefofelobub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/0631/5943/files/hotmail_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0646/6975/files/acuerdos_de_paz_en_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/vebolav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8245/7000/files/jerevuxozureripabu.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 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_off0000661b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661B 5572 bytes
SHA-256: 4ec075acd6b27312478f1a7c1a6073c999416f4b1f7557a0be70a4300ea4418f
font_01_sfnt_off000078f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78F1 10060 bytes
SHA-256: f56c6b5b6da2c4d7e9972bf93d47b019874bf049338663591304ed91bf354018

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