Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d1b2287b34b903b…

MALICIOUS

PDF

45.4 KB Created: 2020-08-25 23:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f094c6d384b86ee67cc9161e907605df SHA-1: dca18e38693ada985a9145520c24a5216af3bb15 SHA-256: 7d1b2287b34b903b253b05aa05855649ce293f09b74e63c89e851d5f2afacd3e
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links and a prominent link in the document body, all pointing to redirector infrastructure. Heuristics indicate this is a link farm designed to lead users to malicious content, likely for phishing or malware delivery. The ML classifier strongly supports the malicious nature of this PDF.

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=subject+filing+definition In PDF document text
    • http://nitizili.cottonginmuseum.com/uploads/1/3/1/8/131856917/1647427.pdfIn PDF document text
    • http://files.bestoftimeswatch.com/uploads/1/3/1/3/131379749/e4facd24be.pdfIn PDF document text
    • http://pogevak.noelanipta.org/uploads/1/3/0/8/130874655/9431467.pdfIn PDF document text
    • http://files.morganmanella.com/uploads/1/3/2/6/132682295/8299804.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/1/0434/6662/1094/files/44025615805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0226/files/2183696605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2734/8121/files/suburban_rv_water_heater_parts_diagram.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1663/1973/files/xbox_one_controller_windows_7_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/4752/0165/files/benim_hocam_yks_matematik_ders_notlar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8581/5205/files/49878308119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1247/0422/files/liposodomomawalomib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/renesobesimavop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/1217/3463/files/analogical_reasoning.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_off0000758a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x758A 5024 bytes
SHA-256: 3c12367987dff7b0bc25b9572f3bb0e4f66b221474aab79fa3c7c2fc04301f04
font_01_sfnt_off000086b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86B2 10104 bytes
SHA-256: 88804970f86e9cb6ad46af6d5cf2e50e2a68930f765f267766a2f28465ee83d6

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