Malicious PDF — malware analysis report

Static analysis result for SHA-256 7738150e83854361…

MALICIOUS

PDF

35.1 KB Created: 2020-08-08 10:20:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 689191075d9c0d5ee43023799c672cfa SHA-1: b6e495bf6de1ec8495e271bc8c4365bd47acf267 SHA-256: 7738150e83854361bd2c1e91a7a7965560f227567459b3cff75a4136d2e14a2e
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=r%25C3%25A9sum%25C3%25A9+de+cours+d+atomistique+s1+pdf'. The document body, though partially corrupted, suggests a lure related to a resume or academic material. The presence of numerous links, many pointing to Shopify domains hosting PDF files, indicates a link farm strategy to obscure the malicious redirector. The ML classifier also strongly flagged this PDF as malicious.

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=r%25C3%25A9sum%25C3%25A9+de+cours+d+atomistique+s1+pdf In PDF document text
    • http://files.writing-raven.com/uploads/1/3/1/4/131438038/pujakata_gagifere.pdfIn PDF document text
    • http://files.artdroparvada.com/uploads/1/3/2/6/132681611/6848928.pdfIn PDF document text
    • http://files.westcarypsychiatry.com/uploads/1/3/2/7/132712096/7721647.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/1/0449/2584/5659/files/wella_color_charm_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/13846749966.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8747/0494/files/tifaragamozadibevurejofoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1615/0427/files/84209583709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7085/3013/files/autocad_visual_lisp_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5727/5299/files/32943100392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/mafotojumexebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0367/4785/files/vevegixibiwolij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/23486919073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6912/0413/files/centurylink_modem_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3318/files/grammar_test_advanced.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/crash_course_gastrointestinal_system.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 5

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_off000049a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49A2 5596 bytes
SHA-256: c1f510701d5cf4918bd567b810449bb897b307f99cdffd4c220b49c313b71cd3
font_01_sfnt_off00005c57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C57 10060 bytes
SHA-256: 8f89b41511a547f1a1e7b918be6ecf40b81a0d9c4c074674d70e937f48fc7bb0

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