Malicious PDF — malware analysis report

Static analysis result for SHA-256 90087142f80f8eaf…

MALICIOUS

PDF

41.7 KB Created: 2020-08-21 19:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d58383a33aa3d790fd202491a40fa18 SHA-1: a6d8f63b9da4b4412fb8f992a289ff681228da82 SHA-256: 90087142f80f8eafa10e9c3860291c56952beef47c547d427a39634c73a2c570
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=guest+blog+submission+guidelines'. This URL is embedded within the document body, disguised as 'Guest blog submission guidelines'. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on shopify.com, suggesting an attempt to manipulate search engine results or distribute content. No scripts were extracted from this sample.

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=guest+blog+submission+guidelines In PDF document text
    • http://files.makingscentsofsoy.com/uploads/1/3/1/6/131637147/a256b145f.pdfIn PDF document text
    • http://resaxi.olathenorththeatre.com/uploads/1/3/1/4/131453870/tusolofebizuwit.pdfIn PDF document text
    • http://tusar.kristygloverportfolio.com/uploads/1/3/1/3/131379099/mipofovepazisuruvur.pdfIn PDF document text
    • http://files.movingstarzpub.com/uploads/1/3/0/8/130874253/podexe.pdfIn PDF document text
    • http://files.recognizethesacrifice.org/uploads/1/3/2/7/132710689/176797.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/1/0438/0724/4450/files/74657859516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6497/4742/files/vuroxuwofujopaxogosipuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16994954809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3218/0893/files/regesumiwejubomurotutarut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7790/1214/files/current_affairs_october_2020_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5481/6665/files/70021935945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9938/2170/files/2005_honda_pilot_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1726/3510/files/larezodaxadudad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0106/0262/files/causas_del_sedentarismo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4695/9261/files/faa_8710-_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/69049899394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0592/6809/files/repekiki.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_off0000650e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650E 5012 bytes
SHA-256: 8dd9bb9ba52e635d0a3a1e96b05377b9fe2618043c8a9cc6091e652882cc27cd
font_01_sfnt_off00007605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7605 10572 bytes
SHA-256: 2300b7f723a70377e17ed009706b78889a3b97bc79f2fdc4c2dd908b1c5f1e67

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