Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb5dd69bd0b7e1a5…

MALICIOUS

PDF

45.2 KB Created: 2020-08-11 19:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e2b287e68230a8bfbe339fd3f53f00af SHA-1: 4301b6e8ed434a39f45e54c7d5fd1dec6faa52e6 SHA-256: eb5dd69bd0b7e1a56301cf39e2192d3263ff9fc6a57094c5876a4f1518e4b1ce
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but also includes a critical link to a known malicious redirector at 'ttraff.ru'. This suggests a link farm or SEO poisoning attack designed to redirect users to malicious content. The ML classifier also strongly flagged this PDF as malicious.

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=spectrophotometer+principle+pdf In PDF document text
    • http://files.philbricksgenerators.com/uploads/1/3/2/7/132741339/3374ed11.pdfIn PDF document text
    • http://files.lightthewaytraining.com/uploads/1/3/1/3/131380841/botegifugevugigozeku.pdfIn PDF document text
    • http://lewumuv.aerosportoutfitter.com/uploads/1/3/1/1/131164250/2adce598fa31.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/1/0433/7709/8910/files/jodudoxozorogapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9391/5800/files/poxibodiraxiraxirefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9813/5966/files/imazing_activation_number_reddit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81256704061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4818/8569/files/87329287655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1401/1555/files/best_english_translation_of_quran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4904/1563/files/deruxenogusovebenibofex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4853/4167/files/wonafodejawinati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1278/4277/files/58337847834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6578/files/haemopoiesis_and_formed_elements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/wovobemojubapakiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8190/files/gewanawijewijezi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D5 4900 bytes
SHA-256: 643210e03b9853cd866395b148d862db9cb31fb8a15835fbf4778f5d0cb61378
font_01_sfnt_off0000764a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764A 10484 bytes
SHA-256: 24945ad3c7ccb98b4e08a5816c371cac42246ffbabac28f46208ee1c21ba8495
font_02_sfnt_off00009a0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A0C 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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