Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b436327a9463695…

MALICIOUS

PDF

44.9 KB Created: 2020-08-15 09:56:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fba3779fecc4059e03601dbabfed1ead SHA-1: e8388a25a12ffce1fbcfb0e1ff7a3b34b535b635 SHA-256: 0b436327a946369527aaa1f1b2e4d5c9585afbc93cea75202f4b6e3b0df4e6f3
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 infrastructure designed for SEO spam and phishing. The primary link, disguised as a '2009 kia rio maintenance manual', leads to 'https://ttraff.ru/wb?keyword=2009%20kia%20rio%20maintenance%20manual', which is flagged as a malicious redirector. This suggests a social engineering attempt to trick users into downloading potentially malicious content or visiting a compromised site.

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/wb?keyword=2009%20kia%20rio%20maintenance%20manual In PDF document text
    • http://files.wapgc.com/uploads/1/3/2/6/132682204/4679422.pdfIn PDF document text
    • http://files.noarderljocht.com/uploads/1/3/1/3/131379014/niwifuwulunama_fazupe_vagaken.pdfIn PDF document text
    • http://files.orikiritesofpassage.org/uploads/1/3/2/6/132681824/1b98e158b.pdfIn PDF document text
    • http://files.briarwoodsrowing.org/uploads/1/3/0/8/130874620/4da9c7d5f4ec.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/1/0432/0867/1394/files/savenipodupirusab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8991/0167/files/alesis_sr-_16_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5432/4117/files/dijidodewumusitapej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9127/1586/files/49494991736.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7401/9740/files/88349562832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/86212148639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9328/7331/files/zepesowazegolivunuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1281/5008/files/acrilamida_cafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/83261727873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6375/4404/files/wepemaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0667/1517/files/82758744159.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 6

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_off00007324.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7324 5168 bytes
SHA-256: 60c38d5bf42dabde7cc4327c27a0190ec30af781f0f4a0dc0ee442968246265b
font_01_sfnt_off00008497.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8497 10072 bytes
SHA-256: 6c0b07a533f0a43ede61528865d898da8d1fa17f9ba91474d978ee030a8190e5

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