Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ad1398804fe89f…

MALICIOUS

PDF

51.3 KB Created: 2020-08-24 13:47:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47e0a51aa10e3590819eba57c3f2f1d9 SHA-1: 6ecd7d50e9292a62405b2a833654a2d980d3cf2b SHA-256: 34ad1398804fe89f43c4900ecf0aa5ebcf5d76c0de4ba660146a54bb68ee1e1b
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=bds+full+form'. The document body, though heavily obfuscated, appears to contain this same URL. The PDF also exhibits characteristics of a link farm, with numerous embedded links, suggesting a broad phishing or SEO poisoning campaign.

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=bds+full+form In PDF document text
    • http://nixeso.thefishonlodge.com/uploads/1/3/1/3/131380600/zudovasem.pdfIn PDF document text
    • http://files.moonfulmama.com/uploads/1/3/0/7/130739674/7138471.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/1/0430/3159/3113/files/kudesewomaruru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6063/3504/files/dodiguxoxole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3523/7269/files/wenapowoluduxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5509/5716/files/transformao_isotrmica_isobrica_e_isovolumtrica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0726/2370/files/statistical_process_control_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0455/9519/files/69009000338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0806/3649/files/cracy_frog_ringtone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2457/9736/files/dibipaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0000/3749/files/wasadidofotute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8301/3023/files/aeroplane_whatsapp_status_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/zaminaketojevivowebaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1271/8498/files/22066844220.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 3

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_off00008b5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B5F 4892 bytes
SHA-256: 714861c55ab8a00423b7dadef30bcf7add269a1346a85525ced7c9d03ac6b528
font_01_sfnt_off00009bea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEA 11208 bytes
SHA-256: 23b5632f0dda5c66df3e2076fa0457dd822f2a04b74532e9073752ee87789553

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