Malicious PDF — malware analysis report

Static analysis result for SHA-256 75162012c0bde0cd…

MALICIOUS

PDF

55.9 KB Created: 2020-08-15 06:52:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7e0139f783f512598974b255040c2d0 SHA-1: 6c50730606f4ecbd1bf7c1739af29fa91183f5da SHA-256: 75162012c0bde0cd1713a8cbccae86ba65f319d2d375b45f386a328366f6c40e
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to various PDF files, many of which are hosted on Shopify. The primary redirector URL, https://ttraff.com/pify?keyword=speech+audiometry+book+pdf, is flagged as malicious and used in an SEO-based phishing lure. This suggests the document is part of a link farm designed to distribute malicious content, likely leading to further compromise.

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.com/pify?keyword=speech+audiometry+book+pdf In PDF document text
    • http://files.sweetbasilhurst.com/uploads/1/3/0/7/130776131/ligodomiraforut_xudijuf.pdfIn PDF document text
    • http://files.wellanddenturecentre.com/uploads/1/3/1/4/131453284/2aac18c6706.pdfIn PDF document text
    • http://nasuge.latreiawoodblinds.com/uploads/1/3/2/6/132681352/rolapi_podugibogu_fanaxoweda.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/1/0432/8259/6000/files/support_vector_machine_tutorial_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8102/3140/files/patanurekajejizusuleju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/accounting_standards_list_with_explanation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9340/2534/files/56449571764.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0785/2192/files/zelejegap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8176/8864/files/escribir_caracteres_chinos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5458/0390/files/algebra_2_homework_practice_workbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/vigonosomuginajitivixup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/xanozumopobevabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5680/6553/files/24694424184.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4410/8445/files/cultural_factors_affecting_consumer_behaviour.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC2 5368 bytes
SHA-256: c62d3b05a5acb4baabd46193ee8c374a823929538480e71f54efff0b0bd00c87
font_01_sfnt_off0000a20a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA20A 10088 bytes
SHA-256: b55adf7caeedd2e8442baafe5df2e425e1d7c628963aea0cf12a7a10438b97eb
font_02_sfnt_off0000c48f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC48F 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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