Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff1ec22a4b11ff82…

MALICIOUS

PDF

46.5 KB Created: 2020-08-19 17:58:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3da1c3e8507fd4334f017b64243503d SHA-1: 845467ac73eaeef58c5e75b2c2a08019fde11f03 SHA-256: ff1ec22a4b11ff825321d86a6ace7d3102041bb97af09d18fd6b302c4acb3701
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 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'consumer reports laptop reviews 2019' and the malicious URL, suggesting a lure. The PDF also contains a large number of embedded links, many hosted on Shopify, which is flagged as a link farm. The ML classifier strongly indicates maliciousness.

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=consumer+reports+laptop+reviews+2019 In PDF document text
    • http://files.mgtowtv.com/uploads/1/3/1/8/131857540/8330549.pdfIn PDF document text
    • http://files.northwestchurchofchristchicago.org/uploads/1/3/1/4/131452826/6ae87.pdfIn PDF document text
    • http://files.chartistcollins.com/uploads/1/3/1/6/131636612/mobovef.pdfIn PDF document text
    • http://files.write-mindedwoman.com/uploads/1/3/1/6/131607565/sarinejofoxan-zutotifit.pdfIn PDF document text
    • http://sokabe.hamanncommunication.com/uploads/1/3/1/0/131070420/0491e.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0430/9050/9973/files/41578106670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9508/4456/files/25882914705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9076/files/tahlilan_dan_yasinan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/74160842027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4452/8550/files/bivejeruba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3065/9751/files/zedalemubenume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7386/2821/files/pajewadosilevum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8938/5879/files/zefiserolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7491/0376/files/99549054025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6372/8545/files/angielski_dla_pocztkujcych.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7474/7558/files/neat_scanner_driver.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_off00006e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E56 1684 bytes
SHA-256: a8640cb23b15ac802f89dd0648c07b7ad030d8b62c5f78624c3814794ace58c4
font_01_sfnt_off000076ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76BA 5504 bytes
SHA-256: 46bd3d0e71c3f351609580449b2837b26407f8559900bd04d88c69bfd4a8569e
font_02_sfnt_off00008967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8967 10480 bytes
SHA-256: 37249bf76f0e05fac36227c624475a8395112b0cd4244e6a87882bb6de9af3cb

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