Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f28b1592e0d2038…

MALICIOUS

PDF

34.0 KB Created: 2020-08-13 09:14:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b5f71793119a56d3ff3e22d5d396170a SHA-1: 54413e301332ff78ec9025be0b7adee2f5e5e180 SHA-256: 0f28b1592e0d2038331b097509350563fd8ae6c991deae35b0ba8e30dd13725f
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate document downloads, but they redirect to malicious infrastructure, specifically 'ttraff.cc'. This is a common tactic for phishing or malware distribution, masquerading as a free download to trick users. The ML classifier strongly indicates malicious intent.

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=administracion+de+la+cadena+de+suministro+sunil+chopra+pdf In PDF document text
    • http://files.gopremio.com/uploads/1/3/1/1/131163747/matumuvirapa_jujelawis_dilefutanobire.pdfIn PDF document text
    • http://files.gorksgoodfilla.com/uploads/1/3/0/8/130815228/3290323.pdfIn PDF document text
    • http://files.sweetnelsons.com/uploads/1/3/1/4/131406258/402c292be8f364.pdfIn PDF document text
    • http://files.dancetalentcompetition.com/uploads/1/3/1/3/131378838/734e438.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/1/0436/8377/4614/files/muleri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/how_to_make_discord_louder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0555/4337/files/synchronous_motor_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2092/2528/files/shawn_mendes_senorita_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0017/6544/files/dagosifivubadufelokaxob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1560/files/ancient_armory_power_cell_locations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wadilizesiwegokadokepub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/49813739663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3924/3943/files/76976533160.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 8

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_off00004694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4694 5384 bytes
SHA-256: 63ee76ca12062c81bce8f977dab6b917829fad6f8ebd4d0a8d916322c164e1de
font_01_sfnt_off000058ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AD 9932 bytes
SHA-256: 55341c55d20a25d728bf8b8018cd22be89043d8b2284bf8a6c4b6140392743d5

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