Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f97629553e070d2…

MALICIOUS

PDF

45.6 KB Created: 2020-08-25 07:59:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6666143755e3a15b2d82505f3437f8bd SHA-1: 5eff58a2aae701d83afb283e6588090e60581130 SHA-256: 0f97629553e070d2c9926d83d5c4278628471a945ba8b93b63b71d7328a1b0f1
194 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service (ttraff.com) and are likely part of an SEO link farm designed to manipulate search results and lure unsuspecting users. The document body, though heavily obfuscated, contains text related to essay outlines and references wkhtmltopdf, suggesting it's a crafted lure. The presence of numerous Shopify links, some benign and some pointing to potentially malicious content, further supports the phishing and redirection attack pattern.

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=cause+and+effect+essay+outline+template+pdf In PDF document text
    • http://files.aultmanorthopaedics.com/uploads/1/3/2/3/132303035/2db094dc05926.pdfIn PDF document text
    • http://files.myanimaltags.com/uploads/1/3/0/7/130739809/jujenisoziwa_rewapemizaxomin_nukula_safasepabap.pdfIn PDF document text
    • http://files.loblowsports.com/uploads/1/3/0/8/130813906/tekudunibik_dujeno_wapelujozoz.pdfIn PDF document text
    • http://files.triggersawblade.com/uploads/1/3/2/7/132741302/wajirufo.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/1/0438/1756/6368/files/cost_accounting_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3622/9277/files/wokodinawaneg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/kanupalowimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5049/9222/files/xizowozerisasebidege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9264/5790/files/airline_alliances.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/12098213052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7595/3049/files/55973141530.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0299/4586/files/yt_www_watchqueue_loadthumbnails.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6285/2761/files/pefiwogelurudazasesexeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/6657317668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6545/0389/files/19203306113.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_off000075a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A9 5212 bytes
SHA-256: 173a232bd9af2acb7c8021948ea70b9f34f3bdb744caa65f8abb635c693e6880
font_01_sfnt_off00008760.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8760 9964 bytes
SHA-256: 598b92f80f4bf01eee81d51cb5a3cb1351d3691f37098e4e1aec37c752fe2e34