Malicious PDF — malware analysis report

Static analysis result for SHA-256 383e0bedd3723f00…

MALICIOUS

PDF

46.1 KB Created: 2020-08-12 10:39:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8c9373d1be904456dc2054c51049b102 SHA-1: 32918a1557c323043b69a7dff2a1201e890628d6 SHA-256: 383e0bedd3723f00e4a83d90d71e7dd8ec9cdeeb46222c8e55829e877fd60e8e
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary malicious link, https://ttraff.cc/wb?keyword=olympians%20george%20o'connor%20pdf, is flagged as a redirector to known malicious infrastructure. This suggests the document is designed to drive traffic to malicious sites, potentially for phishing or malware distribution.

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/wb?keyword=olympians%20george%20o In PDF document text
    • http://files.voetlichtpedicure.nl/uploads/1/3/2/6/132681694/vumapob-nakelazuwepolaj.pdfIn PDF document text
    • http://duluvowef.michelleswafford.com/uploads/1/3/0/8/130814328/zabowuso.pdfIn PDF document text
    • http://files.motivatedqueen.com/uploads/1/3/0/9/130969634/2377994.pdfIn PDF document text
    • http://files.marriedbythebeard.com/uploads/1/3/0/8/130813417/63a0f9d39.pdfIn PDF document text
    • https://ttraff.cc/wb?keyword=olympians%20george%20o'connor%20pdfIn 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/1/0438/2598/7734/files/9970957232.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/lumebiwevodoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7881/1810/files/xodikiboditidasufulelikux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7791/7090/files/kufofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5631/7091/files/call_me_ishmael_tonight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4666/5382/files/luxudiwaxikatonezelik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/serananovuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/4403/1899/files/affairs_cloud_current_affairs_june_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/details_about_periodic_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/21288778169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2157/4044/files/dogabenunofikurusex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/jawokokara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8548/files/the_last_star_5th_wave.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007486.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7486 5640 bytes
SHA-256: 13c28f901818c902590617440ef890a7c188dc40116243d7909cebeb9e1b3f2c
font_01_sfnt_off0000879c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879C 10504 bytes
SHA-256: b34b5b6b98f8e1fa2e66953cf0bac0caf8dfeca4f283241bcddd8565986f71c4