Malicious PDF — malware analysis report

Static analysis result for SHA-256 493c9e1dea183e75…

MALICIOUS

PDF

39.9 KB Created: 2020-08-16 21:58:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e70a924186d47c4862ebb2c43d03cd7 SHA-1: 4c55a4bf045dee064caee66c3cfb1e5c693d66dd SHA-256: 493c9e1dea183e7544f5c6f249ca9a326ca057f8f2933f1b1cecd97da02ff0e7
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This suggests a phishing or social engineering attempt to drive traffic to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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=bilal+saeed+video+song In PDF document text
    • http://files.theetcenter.org/uploads/1/3/0/7/130776041/3714838.pdfIn PDF document text
    • http://sikob.melanomaactioncoalition.org/uploads/1/3/1/6/131606349/dijanilagi.pdfIn PDF document text
    • http://duzus.dynastynparadise.com/uploads/1/3/0/7/130740141/sutokotubeki-vipogow-febugabilibe-dogujifiwaf.pdfIn PDF document text
    • http://zaxomur.accentstudioks.com/uploads/1/3/0/8/130813840/d3b73965aac25e.pdfIn PDF document text
    • http://files.mervyncharlton.com/uploads/1/3/2/7/132740352/falikan.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/1/0432/2403/9592/files/8947734648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7131/5876/files/depression_test_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7938/5766/files/nalubagug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5116/2523/files/abu_hamid_al_ghazali_livre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1709/1744/files/kowoxubobopejevegakuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1320/9246/files/60025542241.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/84201936331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/ziluzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/26628840760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0979/files/lalamudoxiluxububalak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/solidworks_tutorial_book.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EAB 5008 bytes
SHA-256: 27650a2cb26d2ba43fc37263055f3b352113ebfecc9b972fb71c8ecb17b3f98d
font_01_sfnt_off00006fcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCB 10396 bytes
SHA-256: 5f242f85c37b6a244432d5ea9d1fb09f2a88a0bb284e23eda2d35ccb81c0b46f

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