Malicious PDF — malware analysis report

Static analysis result for SHA-256 6750c45e3a88b483…

MALICIOUS

PDF

44.3 KB Created: 2020-08-01 04:52:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d9ddb4e3460df09c5c8dac7da3d1b536 SHA-1: 0f9e3fc931e3b144a20e027b4028257fa184930f SHA-256: 6750c45e3a88b48328af0245ad9d5087f783546c05cf2c1035ba90a9668cace1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. This suggests a phishing or scam attempt, likely using the 'free download' lure as indicated by the SEO link farm heuristic. The ML classifier strongly supports the malicious verdict.

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=2005+polaris+sportsman+700 In PDF document text
    • http://files.platnymscloset.com/uploads/1/3/1/1/131164027/sotapibules.pdfIn PDF document text
    • http://files.cottonginmuseum.org/uploads/1/3/0/7/130740165/xesuder.pdfIn PDF document text
    • http://files.nancymorse.com/uploads/1/3/2/3/132303286/349308058dcca8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0319/9138/files/wamofewamemokisoxavize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3103/5032/files/89726532726.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/gadininepefaluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2707/files/tomemutovivexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4505/9749/files/jaxufafepavexari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/pofilufapijalab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bekoxosumuxukore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/49222529395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7796/7778/files/solerorewij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6965/3663/files/guts_short_story.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/38182608207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/lizanamibudoz.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 5

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_off0000571e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x571E 5020 bytes
SHA-256: 6bdcce09d94c9bc9f7a4b6a7e2bdd56e3511dfe00d4cd7232a25e386b4edc8c9
font_01_sfnt_off000067fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67FB 14652 bytes
SHA-256: 32e1f092c349db754b44b028479cd9aa794a5ae8431140f1fb45ea6a6da4211c
font_02_sfnt_off00009618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9618 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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