Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae65d950f8c45ead…

MALICIOUS

PDF

40.4 KB Created: 2020-08-18 20:39:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1545271ce06935c4a5a86050e6687c50 SHA-1: a68565443b0cf3dcce4ae98a5ed2ff6a7af7fdfb SHA-256: ae65d950f8c45ead7c926c315d055382fa8de497dd7cf4d072165cda060cb747
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector URL embedded in the document body. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link at https://ttraff.ru/pify?keyword=congratulations+hamilton+sheet+music leads to known malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the document's structure and embedded links suggest a phishing or scam delivery mechanism.

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=congratulations+hamilton+sheet+music In PDF document text
    • http://files.wfhsbigred.com/uploads/1/3/0/8/130814085/f90f7589ce77f.pdfIn PDF document text
    • http://files.speakupforanimals.com/uploads/1/3/0/7/130739069/rowijafa-bewivoze-xikuwuf-wugon.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/1/0428/1909/2647/files/lupizeliloboxutalubib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5272/8474/files/70190920169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9920/8346/files/nesef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7699/1653/files/pathfinder_ultimate_intrigue_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7985/files/lafuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/husqvarna_235_chainsaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/33192440006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/18650430856.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7862/3138/files/aniline_structure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4617/3852/files/niccol_ammaniti_come_dio_comanda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8270/9160/files/forecasting_weather_map_worksheet_1_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3203/4980/files/john_deere_265.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9200/1433/files/fikavupetoz.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 2

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_off00006146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6146 5116 bytes
SHA-256: 5ce0675e952a983911ad89f2e49b875a2bbe5dee46dfec50e7138a798918a114
font_01_sfnt_off0000727d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x727D 10044 bytes
SHA-256: de6227c1a81ff5c6069b65b8500b71cd2059f2aae3a70515d5cfcdc68aa25f92

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