Malicious PDF — malware analysis report

Static analysis result for SHA-256 c86136166777eb8c…

MALICIOUS

PDF

54.6 KB Created: 2020-07-31 12:58:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c914cc6a06d71e46dcc70038bb80d02 SHA-1: 8103de6461ac8b94a4faa859f7e93b3ad3d6e480 SHA-256: c86136166777eb8cc99d7dbad5ae1ec0f0352cf37de99cddaf14500d62c68d28
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm behavior, with numerous embedded links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering through a deceptive link within the document, leading to malicious infrastructure.

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=antigona+furiosa+pdf+descargar In PDF document text
    • http://files.oxfordfitfun.com/uploads/1/3/1/4/131437247/fomukidi_gonexavate_vegawamemopan.pdfIn PDF document text
    • http://files.thebarefootmomma.com/uploads/1/3/1/3/131379820/titilasepot.pdfIn PDF document text
    • http://files.nmdaga.org/uploads/1/3/0/7/130739508/gawomomoxeb.pdfIn PDF document text
    • http://files.greenmountainflightacademy.org/uploads/1/3/2/6/132695525/5475949.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/1/0429/7188/9815/files/40391616113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1250/5252/files/44308219164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/pokadaxuguniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4247/9000/files/55393714220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6086/2882/files/93313141825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6893/9672/files/pagebobixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5547/files/dalevusasavamozizatoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5232/5272/files/8489230218.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/titunokajufemomezelunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8660/0609/files/darivoxanokipowafoxibuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7441/0910/files/27035475669.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
🗂 Part of campaign: mountainkindphotography.com 3 samples

Related samples 5

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_off000097c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C1 5160 bytes
SHA-256: 26e77a8f013158700a4f52de3f6e463ed5b5359bb2454944e39b59046e10443c
font_01_sfnt_off0000a95e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA95E 10444 bytes
SHA-256: 6090b65d4345b6d06d508dfda524b1088a74588c51458aa482ed633deceb1be4

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