Malicious PDF — malware analysis report

Static analysis result for SHA-256 08138d7c382a4fe9…

MALICIOUS

PDF

65.8 KB Created: 2020-08-23 17:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a55320d7114a7c988602fade0c4b6a0d SHA-1: a15f379e3f3df5ae5068c2be60bf05866f23b070 SHA-256: 08138d7c382a4fe91283342d205e6da0fa1f494ec9b2cf3cbdeed8e53664b3a5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to trick users into clicking links that lead to malicious content, likely for phishing or malware distribution.

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=le+catalyseur+automobile+pdf In PDF document text
    • http://wixexe.trupbsc.ca/uploads/1/3/1/0/131069869/4468639.pdfIn PDF document text
    • http://files.hansmatheson.org/uploads/1/3/1/6/131637374/9f067b.pdfIn PDF document text
    • http://godejefik.cookingonthetruck.com/uploads/1/3/1/3/131383548/xexekoporivediv.pdfIn PDF document text
    • http://nedafa.fairwindstables.com/uploads/1/3/1/3/131398428/b85bc19.pdfIn PDF document text
    • http://files.nicoleolsthoorn.com/uploads/1/3/1/1/131163856/jabisovij.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/1/0438/4063/5042/files/cub_cadet_lt1045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9560/files/duzaguponopixabekizifawov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/83371976160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8992/0154/files/harvest_moon_movie_cast.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6750/6845/files/peptic_ulcer_treatment_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27055139941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3348/4702/files/shin_chan_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0845/6865/files/9102025027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/42643099748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1510/9797/files/22150358557.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000afd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD7 5260 bytes
SHA-256: eaa0b73f2711343aca4fb462d2f91f25af48541cef5b312aac4d1389aa6f1436
font_01_sfnt_off0000c1ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1BA 12884 bytes
SHA-256: dcd0789b7228221c3a06cec38a0daa602efae3e30fa4ee3bb930036588790b91
font_02_sfnt_off0000ea42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA42 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f