Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29dbeb5d5fc48e2…

MALICIOUS

PDF

46.8 KB Created: 2020-08-22 09:28:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0cfd0f3455b12751d6b3e514664239bb SHA-1: 2b9a8a731abc22c2c00915b03844ac96ddf84df3 SHA-256: e29dbeb5d5fc48e23748c50859c8f85a229e5505b1b72f3989cac7debaab4b16
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 one link to ttraff.ru is flagged as a malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious infrastructure. 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.ru/pify?keyword=probability+and+mendelian+genetics+lab+answer+key In PDF document text
    • http://bimabilo.kibafreemanart.com/uploads/1/3/1/4/131437508/vigawejurobenu.pdfIn PDF document text
    • http://files.ndsuswe.org/uploads/1/3/1/3/131378868/a505238964e84ab.pdfIn PDF document text
    • http://tesukag.contemporaryedsolutions.com/uploads/1/3/1/3/131383483/6676439.pdfIn PDF document text
    • http://files.axokok.org/uploads/1/3/1/3/131383456/xekezerafejabewofel.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/1/0437/5874/7800/files/sololearn_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7949/8918/files/17622730152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0910/6343/files/bridal_march_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/pofudusupuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7508/0087/files/wofesusisiwijiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4595/1400/files/apple_pencil_apps.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0190/3264/files/vixekali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0904/7708/files/black_s_law_dictionary_4th_edition_unabridged.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/34893867336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2157/4049/files/free_calligraphy_learning_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/22582882285.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F2E 5660 bytes
SHA-256: 1689db384e22d0101d43ede80eefbf699d5814bef5a13e55743e08211f54ebff
font_01_sfnt_off00008272.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8272 13504 bytes
SHA-256: 88fff233739f0915db042c120e79f45e380e92c7a11af605f59d3cff45c51b7c

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