Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e242c898c04f30d…

MALICIOUS

PDF

51.3 KB Created: 2020-08-07 19:22:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69e21359d6935c3706216116baeca09b SHA-1: 75501ea4869448442d24b8e4f3209cd630ec8737 SHA-256: 8e242c898c04f30d0ee70e19d0c68435b0bdeac527df385285bc9db23027dca4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to an 'English speaking course pdf file download' and the malicious URL itself. This suggests a phishing or scam attempt to redirect users to malicious content. The presence of numerous embedded links, many pointing to Shopify, further supports the SEO-based lure tactic.

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=english+speaking+course+pdf+file+download In PDF document text
    • http://tugiwapik.drumshotel.com.au/uploads/1/3/0/7/130776208/gotexiwugijoba.pdfIn PDF document text
    • http://files.petergallant.com/uploads/1/3/1/4/131437532/b9779aa313e1b.pdfIn PDF document text
    • http://files.kelljrlonghornsbasketball.com/uploads/1/3/1/3/131383247/muvezobititujodovori.pdfIn PDF document text
    • http://files.zero-waste-warrior.com/uploads/1/3/1/3/131384436/kiligirexamadodi.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/1/0437/1100/4821/files/supasabuxatojitezawaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1223/5174/files/70739463482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3925/files/acoustic_guitar_chords_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3041/files/28162270792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2140/1237/files/36227895590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/55489139497.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5976/3617/files/msi_b250m_bazooka_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9849/5389/files/young_jeezy_the_recession.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93867881616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/najakaminafazazawolalaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7265/files/15006948384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dubisetebezurazoxodo.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 5

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_off00007b2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2E 5532 bytes
SHA-256: a7e8b4b211e66f2360842a00ff5643637a62fc3da73d85a208907a842ecaed70
font_01_sfnt_off00008e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E09 3824 bytes
SHA-256: c8e3f087696f4616dbca9fd8e827821ad3c18e0074915cd3ab84dd1897e25c83
font_02_sfnt_off00009cbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CBE 10288 bytes
SHA-256: c69e21b228a52f1b273a4f5803b32c13aa3cb75a35ca12aa897c360344b47e38

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