Malicious PDF — malware analysis report

Static analysis result for SHA-256 782737f9f69d1ebe…

MALICIOUS

PDF

59.7 KB Created: 2020-08-08 22:27:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 00e91435fa6591a34c0857e8c0df5617 SHA-1: b95c7c7c410de8516f0a26ad86777a303778b36e SHA-256: 782737f9f69d1ebee28d38a30b8d3ee07560656f21c937a9155bd3c075cc0158
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to malicious infrastructure, specifically a redirector at `ttraff.com`. This redirector is likely used to host or facilitate the download of further malicious content, disguised as academic notes. The presence of numerous external PDF links, many pointing to Shopify domains, suggests an attempt to create a link farm for SEO poisoning to lure victims.

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.com/pify?keyword=bsc+2nd+sem+chemistry+notes+pdf+download In PDF document text
    • http://files.jitsbottles.com/uploads/1/3/0/9/130969053/rewerowim.pdfIn PDF document text
    • http://nuniv.charlestonteacheralliance.com/uploads/1/3/1/3/131381464/waxap-kunexofupubuke-kuliterejajuvem.pdfIn PDF document text
    • http://files.redhawkcommunity.com/uploads/1/3/0/9/130969573/mibevokaxejar_wowabulopabib_xiseriz.pdfIn PDF document text
    • http://files.tamiwoodcreations.com/uploads/1/3/1/4/131407423/6381724.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9842/3967/files/63239118135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/66669268650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6026/5117/files/76729942531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8359/4909/files/39342002222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7075/8820/files/18521876179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/audi_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/79921333735.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0546/7035/files/fagatexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7431/3622/files/adverbs_worksheet_7th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5366/2876/files/b._com_part_2_notes_all_subjects.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1081/files/7549680089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/kilolovisusidibakevidur.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F39 5556 bytes
SHA-256: b4f0f3897723e1a7c797aa9baf0ba2cc4c8736582a50db37431c6429fdf443f4
font_01_sfnt_off000081fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81FB 3204 bytes
SHA-256: 55635b50bad29c6b04cd9b4d5dd064b78be6c29eafc981c666da6fe4470a6799
font_02_sfnt_off00008eeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEB 2576 bytes
SHA-256: 6979bd47582e1076a00d5472c1190b3af330e4342ab9b9f0dc7d58f6ae02f5fc
font_03_sfnt_off000099de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99DE 10252 bytes
SHA-256: f303a38860ba0a29d527b58b03feab0648b9d7af92bb027082a0586c31efffbc
font_04_sfnt_off0000bce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCE0 16224 bytes
SHA-256: 4362e686776cae9b5e877a8e5de4a1ff5ae9966626bcf1046762b8e3a01bbea2
font_05_sfnt_off0000d22d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22D 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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