Malicious PDF — malware analysis report

Static analysis result for SHA-256 be34cf5ff543cee1…

MALICIOUS

PDF

51.7 KB Created: 2020-08-08 11:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e925e229ee42668057d84fe9841cc0c9 SHA-1: 9839c2395e1dddde2fed8e07190675cb5adaf442 SHA-256: be34cf5ff543cee1652ced7fbfe21f6fa0459888d1dc92cbb9607e19120044de
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=collective+nouns+list+pdf'. Another critical heuristic indicates a PDF link farm, suggesting the document's primary purpose is to drive traffic to external sites, potentially for malicious purposes. The ML classifier strongly supports the malicious verdict.

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=collective+nouns+list+pdf In PDF document text
    • http://files.monkeymadnessfunbus.co.uk/uploads/1/3/2/7/132740375/9516346.pdfIn PDF document text
    • http://files.narrabrishow.com/uploads/1/3/2/6/132696210/nuvabagor.pdfIn PDF document text
    • http://fapume.qicultivation.com/uploads/1/3/1/4/131438177/d01982ceb03c6.pdfIn PDF document text
    • http://files.crossfitliveloud.com/uploads/1/3/0/9/130969352/5038501.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/1/0434/3241/1298/files/6595911393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/wakepiwadasajovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8448/9631/files/4976414336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9502/4033/files/83706110512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/kafemaxafekoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5443/0368/files/67006125747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/english_grammar_with_examples_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0767/9397/files/fundamentals_of_coding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6087/7729/files/knowledge_attitude_and_behaviour.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/lufibumef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/gikaxitawedutem.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_off0000760b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x760B 4808 bytes
SHA-256: c2f9ebd6be6c1baa53efa8049eaea4d4eafcbf2e6a157fcf1fd8666f0ce07554
font_01_sfnt_off00008683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8683 14088 bytes
SHA-256: 9b75ca1a9970069e5fdf070319d148401ea11c9f6045e6d37c34a48ff9b77328
font_02_sfnt_off0000b25e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB25E 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

Open this report in the interactive analyzer, or submit your own file for analysis.