Malicious PDF — malware analysis report

Static analysis result for SHA-256 90a15a79bf8755e0…

MALICIOUS

PDF

107.5 KB Created: 2020-08-06 15:18:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56b586ff5c793065f1cc8ad5517dfd7c SHA-1: c5a30ee873b210ced7c32ab3b661d694b3678d51 SHA-256: 90a15a79bf8755e027b49f0f03756765201a8d0fed2c280c822ffd40f6295cb7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=post+bretton+woods+system+pdf'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the primary one leading to a Shopify domain. The document body, though heavily obfuscated, contains the same URL, suggesting a lure to external content.

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=post+bretton+woods+system+pdf In PDF document text
    • http://files.access-genie.com/uploads/1/3/2/7/132740352/198dd1c4f.pdfIn PDF document text
    • http://files.trevorhook.co/uploads/1/3/0/9/130969974/6818267.pdfIn PDF document text
    • http://files.alyssastanghellini.com/uploads/1/3/2/7/132710627/ca3de847b.pdfIn PDF document text
    • http://files.watchmeloseweightandgetfit.com/uploads/1/3/0/7/130775123/176aeb760c09.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/90111883463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3217/2965/files/24945976956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6265/7177/files/1677609951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/28310148001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3618/0634/files/93721502812.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5794/6519/files/anti_inflammatory_drugs_and_their_mechanism_of_action.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7348/6496/files/wivupijopalixekebige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7319/8487/files/english_placement_test_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3317/2885/files/divudiwiruba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4885/2904/files/jerry_kuhnhausen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9582/5320/files/blastocystis_hominis_tratamiento_nios.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015aca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15ACA 5020 bytes
SHA-256: cd719bb6324ab91e420bf2f1625ff1000eab888680f64282e6bceb247ebd069b
font_01_sfnt_off00016bcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BCC 11632 bytes
SHA-256: 5d7689a3a99e54916cdbf265ee009935c0b315838dee018aef6543dbfe939cc2
font_02_sfnt_off000192e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x192E0 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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