Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c29f58e33d164af…

MALICIOUS

PDF

38.6 KB Created: 2020-08-21 23:27:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0d447cb875637b255594e8989ba6f72 SHA-1: c02373e68cefc481c4641e063ca3da37d429ef3e SHA-256: 6c29f58e33d164afdbf27b5ed2c7924f3051c7773bb7da7023b5a3ce35b8b6b2
162 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body and embedded links suggest a lure related to software trials, specifically 'Adobe audition trial', to entice users to click on the malicious URLs. The ML classifier strongly indicates maliciousness, and the presence of a redirector link confirms a malicious intent to lead users to harmful infrastructure.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=adobe+audition++trial In PDF document text
    • http://kubezipaj.indianairmails.com/uploads/1/3/1/4/131437774/8407240.pdfIn PDF document text
    • http://files.m-c-ryan.com/uploads/1/3/0/7/130775009/desal.pdfIn PDF document text
    • http://files.controlcover.com/uploads/1/3/1/0/131071067/bobawolo_femepomufetu_pituli.pdfIn PDF document text
    • http://nagumowe.46oakcandles.com/uploads/1/3/1/0/131070859/7560442.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/1/0437/5448/7957/files/subject_relative_clauses_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4274/3207/files/vipadejefokufijabisirep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4429/5076/files/linux_restart_network.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8900/2653/files/mopakolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0971/2021/files/zifugidiwobinajanus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/14871324216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1036/5339/files/statistical_modelling_in_pharmaceutical_research_and_development.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/24272195111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8190/files/gewanawijewijezi.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_off00005ad4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD4 4768 bytes
SHA-256: 69f3233885773d8b7d1c5fac6899226955b6f25dd34c94488f1c7950a0f383c1
font_01_sfnt_off00006b14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B14 10296 bytes
SHA-256: 61b46bd2910bb1865e53eb1a45710b071b2501d5c4f190ba0a98081c164514d0

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