Malicious PDF — malware analysis report

Static analysis result for SHA-256 7156e740ec248558…

MALICIOUS

PDF

64.9 KB Created: 2020-08-17 01:17:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 60ccd51c44791e2c4667ef3b7ecedfe7 SHA-1: a73682bf1088437c8481ba5d4eb8cda7417b5f35 SHA-256: 7156e740ec248558805a63fa772ac02e4cdd11c0b9f2db1efa6d4678875ab93e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains numerous links to a redirector service, identified as a malicious link farm. The document body, though heavily obfuscated, contains a URL that points to a known malicious redirector. This suggests the file is designed to trick users into visiting a malicious website, likely for phishing or malware distribution.

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=contract+closeout+report+template In PDF document text
    • http://files.2003ebaenglandscotlandtrip.com/uploads/1/3/1/6/131637308/vokosifavovanolopar.pdfIn PDF document text
    • http://fapaj.jobarber.com/uploads/1/3/1/0/131070420/98514d4ee400.pdfIn PDF document text
    • http://files.crossfitgk.com/uploads/1/3/1/4/131453821/071711.pdfIn PDF document text
    • http://tanetadeb.paper-scraps.com/uploads/1/3/1/4/131437604/988aa2950.pdfIn PDF document text
    • http://files.downtownbhamplan.com/uploads/1/3/1/4/131406082/vipiximifulo.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0434/4116/0344/files/1337035876.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3991/5164/files/86356658162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6740/8535/files/dusokesun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4609/2443/files/wigaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3882/6918/files/govatij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4005/5208/files/tratamiento_candida_hombres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/matlab_code_for_beamforming_algorithm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/xotomumotaxugozemeliroz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/27808697679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/41824637929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8346/3832/files/zerebiwivorilulaxaxefad.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 4

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_off0000a630.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA630 1728 bytes
SHA-256: 071e35b4774d226c89bbd10bef30110ecb094d3555517f0e29a727a4cc4785e2
font_01_sfnt_off0000ae4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE4B 4984 bytes
SHA-256: aac6cadbe635c2989906064547f498c935915e1f90d6f3a614c0033e95b287cf
font_02_sfnt_off0000bf1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF1D 17100 bytes
SHA-256: 54b7ea7e513d799792aee59eb51eeeb4fb58e8221504d4e4dc7d29cdf42aa03b

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