Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed7fca0e4910f26…

MALICIOUS

PDF

39.7 KB Created: 2020-08-09 22:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a80bac6364b5bd61c1eea73bea3a875c SHA-1: 72fc23dc5f04a11a87dae2945e7333783ba1993a SHA-256: 7ed7fca0e4910f261daf24f499dfbcf9f936427b81ec660f02139836d8495a5c
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to a redirector service known for malicious activity. The primary redirector URL is https://ttraff.ru/pify?keyword=antrenmanlarla+matematik+1+tamam%25C4%25B1+%25C3%25A7%25C3%25B6z%25C3%25BCml%25C3%25BC+pdf, which is likely used to obscure the final destination. The document body itself contains garbled text but also includes the primary malicious URL and several Shopify URLs, suggesting a link farm or SEO poisoning tactic 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.ru/pify?keyword=antrenmanlarla+matematik+1+tamam%25C4%25B1+%25C3%25A7%25C3%25B6z%25C3%25BCml%25C3%25BC+pdf In PDF document text
    • http://files.minutiamuse.com/uploads/1/3/0/9/130969209/suwikororotop.pdfIn PDF document text
    • http://files.fizznaillounge.com/uploads/1/3/0/7/130776599/2115448.pdfIn PDF document text
    • http://files.soulworkscollective.com/uploads/1/3/0/7/130776769/3450432.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/1/0433/0687/7080/files/53978683100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/plant_based_bodybuilding_meal_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6108/3301/files/88083973104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4076/7132/files/astm_a36_14.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3577/0535/files/410_shotguns_walmart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0419/8044/files/mejipuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/jegemigafapeduv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3932/6365/files/ferejevilutomafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7259/2801/files/jokifebigoginujavuxinozaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5347/files/23549141845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4589/4816/files/ways_of_the_world_3rd_edition_chapter_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/50280456424.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_off00004a42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A42 5312 bytes
SHA-256: 60d700d20ad5667faa18055b264d94874d08abef05cd59f16b980339ac9d0c64
font_01_sfnt_off00005c37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C37 11944 bytes
SHA-256: 18b842a2f0b7af5f153cae6ae58c1aa438daac6ff3c16df5410649312c340c0b
font_02_sfnt_off00008108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8108 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e