Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d95d7a5abfc4fa3…

MALICIOUS

PDF

51.3 KB Created: 2020-08-18 15:55:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c967dd3454c667f29da80556e4bddd93 SHA-1: 1ec3d039877509599807209ea64d6251d4877a4b SHA-256: 6d95d7a5abfc4fa32a5d48db7b557df478998fb998444a936c1b4fa4dd4ef469
194 Risk Score

Malware Insights

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

This PDF file contains embedded links that redirect to known malicious infrastructure, specifically a redirector at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same redirector URL and a list of benign-looking PDF files hosted on Shopify, suggesting a link farm or SEO poisoning tactic to lure victims. The ML classifier also strongly indicated maliciousness.

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/pify?keyword=alvaro+soler+la+cintura++mp4 In PDF document text
    • http://files.fcproducts.co.za/uploads/1/3/1/4/131407112/mabopefarutexisefa.pdfIn PDF document text
    • http://files.main-global.com/uploads/1/3/1/4/131411688/1025640.pdfIn PDF document text
    • http://gasuju.davidstrailendurancerun.com/uploads/1/3/1/1/131164406/ganexudozuwek.pdfIn PDF document text
    • http://files.wilkinsonbrian.com/uploads/1/3/1/6/131606349/jewivawegilu_kabofivajepawuj_wusiwigopuzo_pivigoweli.pdfIn PDF document text
    • http://files.ghpcounselingservices.com/uploads/1/3/0/7/130774979/jepojalojovosetejigu.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/1/0432/6454/0840/files/rofupek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1725/7628/files/47118128574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5863/2606/files/16105055583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3806/5308/files/gevuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5811/8312/files/basic_english_grammar_test_bank.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8016/3227/files/11563232946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2280/9250/files/kotisewulivitaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/bicester_village_vip_card_invitation_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3897/3857/files/cursive_alphabet_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/madarasaguzej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4645/1862/files/loduwitobupelixuredawusom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/81535078734.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000542a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x542A 5216 bytes
SHA-256: 44e2b6e7a4adc29564b096b6e3e8540ece45da5ca89e4df17e8d8116f38ca847
font_01_sfnt_off000065d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D2 3596 bytes
SHA-256: 53194ddd84c3c107330ea3f95a64e265991c13ccacaa9dbf9d33c4b07892070e
font_02_sfnt_off000073b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B9 14152 bytes
SHA-256: 87132d9356fabcaa616594cfb1a32d1978cbb9efafa823df83d6fce13e9e8650
font_03_sfnt_off00009eea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EEA 19128 bytes
SHA-256: 3ae7473ac9b9efba0ad22257b8a47a6d36a93296ed98301099a254c9e4244d6a