Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f058e92a737d33…

MALICIOUS

PDF

39.7 KB Created: 2020-08-09 08:00:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65d014c0234e73d96216a7dcb2a30542 SHA-1: 20f5be8e0fe116dec0082202a26e97831d3db278 SHA-256: 26f058e92a737d33447685efe4907bf223832ca339b9282bc342b643ac0f3f7c
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious link, 'https://ttraff.ru/pify?keyword=ic+cd40106+pdf', is flagged as a redirector to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting the document's purpose is to lure users to malicious sites. No scripts were extracted, and the family is undetermined due to the lack of specific indicators.

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.ru/pify?keyword=ic+cd40106+pdf In PDF document text
    • http://files.happyistheone.com/uploads/1/3/1/4/131437937/xibepagekimujez-dupilipidil-sabugirugumesi.pdfIn PDF document text
    • http://ruzade.farmbuddiesonline.com/uploads/1/3/1/3/131383483/sukovenujunijegavi.pdfIn PDF document text
    • http://files.shellyjarvis.com/uploads/1/3/0/9/130969548/1356993.pdfIn PDF document text
    • http://files.srmsperformingarts.com/uploads/1/3/1/4/131483327/8934d89145.pdfIn PDF document text
    • http://files.ztodorova.net/uploads/1/3/1/3/131382032/07a08.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/1/0432/7460/0598/files/mubejadagenatabot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/analgesik_non_opioid_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8225/2442/files/weduwatirilubemikasap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8307/5477/files/ca_foundation_course_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/28882288653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/76117249087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7330/files/waxatudibagulowularopog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8786/9592/files/37239947696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6076/3555/files/wufinilamimikenevotogep.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_off00005d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D97 5008 bytes
SHA-256: 57b8449435ae66dbea1fcff3572e0a3a680626ec2ebb9e365b3e3c4241c61645
font_01_sfnt_off00006ecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ECC 10388 bytes
SHA-256: 1e312dedaa18b950032f0c6d2ab706bf1e094041fa6389fc1a17bde1ad10c3e3

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