Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8e692d5b2702e7e…

MALICIOUS

PDF

51.7 KB Created: 2020-08-01 11:24:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd3be46f838c3a039cbd2182554cf160 SHA-1: 4ef2fcd4ef45616bc55050a20c2654d01882d742 SHA-256: f8e692d5b2702e7e6198a3db09d3cabe97cca70ad4d476f99854cf13f737d432
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious by an ML classifier and contains a high number of embedded links. One critical heuristic indicates a link to a known malicious redirector, 'ttraff.cc'. Another critical heuristic identified a PDF link farm, with many links pointing to Shopify-hosted PDFs, suggesting a potential SEO poisoning or content redirection scheme. The document body itself is heavily obfuscated but contains the redirector URL and several Shopify URLs.

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.cc/pify?keyword=soap+request+example In PDF document text
    • http://files.altrusaofgadsden.com/uploads/1/3/1/0/131070302/lupemazerok-dulanefojofow.pdfIn PDF document text
    • http://files.3mbc.org/uploads/1/3/0/8/130813536/deeab.pdfIn PDF document text
    • http://files.fowleropebirding.com/uploads/1/3/2/8/132816036/9381833.pdfIn PDF document text
    • http://files.yogawithserena.com/uploads/1/3/0/7/130776151/noxeju.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/1/0438/3493/3408/files/fudutapafujanunel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6564/files/samenexupifubas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0992/3480/files/39037887247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8941/2764/files/salofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8157/3279/files/patafurixunaxivodexek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jewepogepavab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3295/2477/files/dexezuduwerawomogefek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8935/4142/files/velefijumer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bixebor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4071/9516/files/40414598350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6954/7431/files/mulotafopadozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0913/8084/files/48243677680.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 7

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_off000083f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F0 5264 bytes
SHA-256: cb0c5201aed3c610acc0304e098b3008963c60008ff75321933d6d4745081c88
font_01_sfnt_off000095c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C8 13980 bytes
SHA-256: e178d55e7c94491607cd939affb824259155a03e501107f96515154c34f42b63

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