Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17479212a45c696…

MALICIOUS

PDF

38.1 KB Created: 2020-08-11 16:38:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf1479205677c16df2ab640837092fe5 SHA-1: a682e53f75d3c590fdc736c205c6629724defbc6 SHA-256: b17479212a45c696c25fc5b3082ae1e51b6cae6f4b80cccf4847b90b11abeb09
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it's an employment attestation, a common lure for phishing or malware distribution. The presence of a malicious redirector link indicates an attempt to lead the user to a harmful destination, likely for credential harvesting or further payload delivery.

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=exemple+attestation+de+travaille.+pdf In PDF document text
    • http://files.marthastarfish.com/uploads/1/3/0/7/130775734/8933376.pdfIn PDF document text
    • http://files.deewhyhealth.com/uploads/1/3/2/7/132741302/4240.pdfIn PDF document text
    • http://files.moreheadtheatre.org/uploads/1/3/2/6/132681342/2ab6a3cc2.pdfIn PDF document text
    • http://ravarebak.classicarcaderenovations.com/uploads/1/3/0/7/130776542/62020.pdfIn PDF document text
    • http://files.jennuineguidanceandhealing.com/uploads/1/3/1/4/131406717/wetodobagi.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/1/0436/7984/2457/files/3972700470.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/24364076414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/kuvuzupelireronuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9620/2661/files/alginac_bula_anvisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/44914653869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/73765949741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6094/8118/files/ccna_study_guide_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/maven_skip_tests.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9928/2845/files/27966470537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86556218032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4763/2548/files/fajetekamogilawovotozid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1683/0632/files/cetoprofeno_100_mg_bula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3935/9127/files/gerewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6963/5746/files/mononomeruzonigosejure.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000545a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x545A 5304 bytes
SHA-256: c23ece5a68cdb7bedc33791b410fdbaba300627218bc8ae27c3cc8abfdee13f9
font_01_sfnt_off00006657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6657 10904 bytes
SHA-256: 218616d2be5b533abc1231111e51d9a8851dd11c2bdd13e1c868ccb52c86a093