Malicious PDF — malware analysis report

Static analysis result for SHA-256 036c34e3b4188ba4…

MALICIOUS

PDF

49.0 KB Created: 2020-08-02 05:21:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f80559edf3553ef413556fb6f8148d88 SHA-1: 8dfe945811bf030b54ae5ebf0b01ff2a5028005d SHA-256: 036c34e3b4188ba4e24ef52d7a842325c782f125d4b84d1cb871f7c549e5ad8b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The presence of a large number of PDF links suggests an attempt to create a link farm or distribute phishing content. 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.cc/pify?keyword=edz+resource+detector In PDF document text
    • http://files.jennifergrayphd.com/uploads/1/3/0/7/130775897/sewuzugizo.pdfIn PDF document text
    • http://files.gracpiacenza.com/uploads/1/3/0/8/130814121/jilevalunelelatu.pdfIn PDF document text
    • http://files.thebracketpros.ca/uploads/1/3/1/3/131384300/b4a371554.pdfIn PDF document text
    • http://files.canadianculinaryinstitute.ca/uploads/1/3/1/3/131398406/76cbb0cde.pdfIn PDF document text
    • http://files.tonymesarealestateschool.com/uploads/1/3/1/0/131069824/74102a6305a0d5.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/1/0433/5036/0232/files/58721888832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/merck_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/15644379867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0505/0008/files/vuzudoluruwakawej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/xewajigemaxuguvudok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2512/9894/files/biwunatop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bararilisubolubudikolumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/9901449768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/57899579170.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5775/0951/files/65576898719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9949/6351/files/too_many_items_mod_1._7._10.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_off00006c1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1C 4428 bytes
SHA-256: 72b157cc866a2e13d7583fcb79d0ff7ff2289dc685ff41b5d083bb9aef5a256f
font_01_sfnt_off00007b3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3E 13968 bytes
SHA-256: 436301c907e4d7333ba9cc8ce5443f742a13e24658ecd98a77cca07eb8aba302
font_02_sfnt_off0000a7c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7C0 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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