Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c537359fb75eb02…

MALICIOUS

PDF

50.5 KB Created: 2020-08-07 01:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8e6d53ca00322577607b8baa8f6d295 SHA-1: 633e7191047f66489da0f4a643658d97cc3755b4 SHA-256: 1c537359fb75eb022ba819baf74f3320fd14076a64aea5d3788f5f2acb35c91c
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.ru', which is disguised as a game walkthrough. This indicates a phishing or social engineering attempt to redirect the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The presence of numerous embedded URLs, many pointing to Shopify, suggests a link farm or SEO poisoning technique to distribute the malicious 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.ru/pify?keyword=baldur+s+gate+2+enhanced+edition+walkthrough+pdf In PDF document text
    • http://files.pragmaticpassion.com/uploads/1/3/1/6/131636828/nenaleloraf.pdfIn PDF document text
    • http://files.theidealtrip.com/uploads/1/3/1/1/131163780/4b94c9e.pdfIn PDF document text
    • http://rizamegid.pyramidcafeshop.com/uploads/1/3/0/7/130738779/tejofokepog.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/1/0432/4638/7362/files/85224788939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutowoterefabobenovise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/zikaforilenonerepemex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9456/5271/files/79275241503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/88978828558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5557/8273/files/repegolegivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/actuarial_science_exams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/nomurolupidutiseb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4584/6168/files/20623134613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8085/2383/files/viweragupesuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6836/4702/files/96727872057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3961/3347/files/59128058579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/pajimudogudakosiz.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 3

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_off0000853b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853B 5752 bytes
SHA-256: 2fffe1d9d6d19f3ce99328dcc9cd7096fd3d8fec1dd3677cf530bbd5ca5bb798
font_01_sfnt_off000098ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98EA 10464 bytes
SHA-256: 7d3c1edc8fab5ce044ecfc2b8897f1f564bfee3ea9cd6cfc0b9e1545b6d8ed72

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