Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0af350acc2fcdc2…

MALICIOUS

PDF

43.8 KB Created: 2020-08-10 14:55:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0668c397d3b1d0d50b7cd3b7f7e9663 SHA-1: 34314aa68648161a7018d21abf800d75d0d36343 SHA-256: d0af350acc2fcdc233741603060c0ada990f0b534f691ada9b773c500b0920cb
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be SEO-related keywords and a URL that mirrors the malicious redirector. The presence of numerous external links, including a malicious redirector, strongly suggests an intent to direct users to potentially harmful websites.

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=bottom+up+and+top+down+processing+in+listening+pdf In PDF document text
    • http://files.ellendonaldson.com/uploads/1/3/1/8/131856146/tetoj.pdfIn PDF document text
    • http://files.ahs2020national.com/uploads/1/3/1/0/131070612/600544f4.pdfIn PDF document text
    • http://files.brokencompasslifestlye.com.au/uploads/1/3/1/3/131380901/2313443.pdfIn PDF document text
    • http://kukikugeb.currantcreekoutfitters.net/uploads/1/3/2/8/132814930/f73f8389cd84.pdfIn PDF document text
    • http://files.justicefarms.com/uploads/1/3/1/3/131380213/tabavuvorezib.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/1/0431/2583/3882/files/simple_past_negative_and_interrogative_form_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/gaforojavukolodij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/ciencias_auxiliares_de_la_historia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/vojutejerifofomutamola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5863/4658/files/23642951945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4742/0066/files/85191733527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8597/8013/files/66478311184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2525/0974/files/basedatetopigiworo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/75905384816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4364/2773/files/17037326017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/logaga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6972/6110/files/89294257223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/wajabanosojedukigekunad.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006af1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF1 5616 bytes
SHA-256: 9a30696a2ab66e97091643d9558e1f629934dea3ab05b4446d3a909375a26765
font_01_sfnt_off00007e00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E00 10504 bytes
SHA-256: 8d0fbbaa63e6f4b6369fdc0faec9e4831b5e6696b43c349a5e742429e3ff5418

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