Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9c3e582f95d159b…

MALICIOUS

PDF

46.3 KB Created: 2020-08-11 12:56:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0fe1bf44d1ae7b2a40161159bd812e77 SHA-1: 0a4c80721b4f2e6ae21edd02c704c0507ff99d5f SHA-256: c9c3e582f95d159b779141c0b26b8f4579e55bcd666d8679acfcd4dc141eb4f8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'ways to increase self esteem pdf' and the malicious URL itself, suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility of the malicious content.

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=ways+to+increase+self+esteem+pdf In PDF document text
    • http://sukip.christineleakeymusic.com/uploads/1/3/0/9/130969352/lisimuganatar.pdfIn PDF document text
    • http://files.templetonffa.org/uploads/1/3/0/8/130874055/bb8db161595bc8b.pdfIn PDF document text
    • http://files.makeupartbymaddie.com/uploads/1/3/1/3/131379118/5493503.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/1/0432/9334/3912/files/rumisipuxenoxopas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0448/3993/files/87451246093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0145/4496/files/44209827820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/cars_on_demand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7896/6686/files/what_color_is_your_parachute_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/dirunumedovixeguk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/79293235539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2303/1720/files/3d_custom_maid_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0441/9478/files/76894218414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/xusalolakoliluwula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/bujetegepora.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_off00006a4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4D 5204 bytes
SHA-256: fca963c507e0129354800feb500ed4e0ca7a6cbadb3b4ec57dd227e401236f26
font_01_sfnt_off00007bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEC 10008 bytes
SHA-256: 047de6f651ca07d7239a3485a26e9bd10664fb9005171edd847806eae290152c
font_02_sfnt_off00009e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E27 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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