Malicious PDF — malware analysis report

Static analysis result for SHA-256 0634ca0597c004e2…

MALICIOUS

PDF

49.2 KB Created: 2020-08-10 08:02:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d052c290a3301ea6fc9c4b11e4765d8 SHA-1: 8e692363f395887391c9ba7454b03df01c9fce38 SHA-256: 0634ca0597c004e2cc8b3098c87c909bf94290cd9adbedd42faa8ed1deb6af24
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many pointing to what appears to be a link farm designed to host PDF files. The primary redirector URL, 'https://ttraff.com/pify?keyword=ca+inter+reference+books+pdf', is flagged as malicious and likely leads to a phishing or malware distribution site. The ML classifier strongly indicates maliciousness, and the overall structure suggests a tactic to distribute malicious content or phish for information under the guise of providing reference materials.

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.com/pify?keyword=ca+inter+reference+books+pdf In PDF document text
    • http://kalopobe.ponyenzo.com/uploads/1/3/0/9/130969723/xarufafabugolote.pdfIn PDF document text
    • http://files.southerntierstarlites.com/uploads/1/3/2/6/132695278/278c141e7b8.pdfIn PDF document text
    • http://files.defriesgardens.com/uploads/1/3/2/6/132696351/70296.pdfIn PDF document text
    • http://files.bucksnortnrunclay.com/uploads/1/3/1/4/131453990/sutupip.pdfIn PDF document text
    • http://files.markeatongardencentre.com/uploads/1/3/0/7/130739253/vetipipadox-vixitabutiro-nukosin-tekekunekiw.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/1/0441/3220/4696/files/98289421122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5720/9766/files/linksys_e1200_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/vadibotosevu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3443/4974/files/mazebasofenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4411/9462/files/jaguwumozamini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1257/9747/files/31857292693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8927/8616/files/derive_joint_cdf_from_joint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/fafanebefafipebevetaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3601/6803/files/microelectronic_circuits_and_devices_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/44916610486.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 6

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_off000082a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A3 5228 bytes
SHA-256: 689c8fc9776b222eafa9f43552951e671204b559946162bd346d7b18deb936ec
font_01_sfnt_off00009475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9475 10480 bytes
SHA-256: f6896d69241f4481542792a63c39e3444836e4426ae9e60638e15d6c5ab3cf2b

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