Malicious PDF — malware analysis report

Static analysis result for SHA-256 2518653c76a6df46…

MALICIOUS

PDF

61.0 KB Created: 2020-08-27 21:24:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51c0efef442cfbe189296c83be589c23 SHA-1: b27be9420e09b7e85ca0936270fb67a08131aa38 SHA-256: 2518653c76a6df46e5f19fadd3c6efe2b4c44e39fbab1aa844bff6cbaafe9edc
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is likely intended to lead users to malicious content. The document body, though partially corrupted, contains text related to movie titles and the redirector URL, suggesting a lure to potentially malicious content disguised as entertainment.

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=pelicula+completa+it+en+espa%25C3%25B1ol+lati In PDF document text
    • http://tazofefe.averagejoesraam.com/uploads/1/3/1/3/131383309/432c3913283.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/1/0439/2134/2619/files/57217745109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/dozovalitawizazune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/blood_angels_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5393/2966/files/gebixuwinulubak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4538/8442/files/5233502561.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/lexulisinajizugopow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3837/5074/files/95442209430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0867/1394/files/bolt_tightening_torque_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5026/1915/files/unity_2d_jump.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
    • http://scripts.sil.orgIn PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7255 13372 bytes
SHA-256: 198c34ec0e2878dfe39f7334e75946e487be092cbcc5399ee7052e9924ab7f67
font_01_sfnt_off00009dcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DCC 5196 bytes
SHA-256: f4b26e1ab188590d31c1ac6c789263c15470b608b212a28b11d20079e1dab63a
font_02_sfnt_off0000af1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF1B 9676 bytes
SHA-256: 9b1877326e321f271d78dc0b1cba415d3474f600490546e7622b8a7242eed29e
font_03_sfnt_off0000ce99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE99 7116 bytes
SHA-256: 09f55c1f17062e3950889c0d25f7715eeef43f1de8d1d5af45986bddf700b9ab

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