Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e755bf28bfc157a…

MALICIOUS

PDF

54.1 KB Created: 2020-08-12 12:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e7bfec0e6d6f941e0f5f91eabac90930 SHA-1: 23f93e027fe186c6739ee4122a862055ba735ab1 SHA-256: 5e755bf28bfc157a5776387bc70f7f75772438f07b8ff380c8f1be9120051a0a
194 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Accenture aptitude test questions and answers pdf' and embeds multiple links. One critical heuristic indicates the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=accenture+aptitude+test+questions+and+answers+pdf'. Another heuristic identifies a large number of external PDF links, suggesting a link farm for SEO manipulation. The ML classifier 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.cc/pify?keyword=accenture+aptitude+test+questions+and+answers+pdf In PDF document text
    • http://files.kellilanee.com/uploads/1/3/1/8/131857199/lijojubuliwe_ruvamadaneve.pdfIn PDF document text
    • http://files.3rdlayertattoo.com/uploads/1/3/0/8/130813757/8014454.pdfIn PDF document text
    • http://gajoru.rstne.com/uploads/1/3/2/8/132814930/8351640.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/1/0434/8621/6352/files/junekuwim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6343/3621/files/14983087865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9901/9682/files/zepubitoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3258/9989/files/93170894421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5025/3992/files/82820354883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kijajakunij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4340/4441/files/datafidejorirolitexewur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/xaxuvenix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4447/6840/files/46167132108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5816/5925/files/linode_speed_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0721/2695/files/bilawewufinefibojad.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_off0000950f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950F 5324 bytes
SHA-256: 0ec36861dc7324f20566dccc42eaa68fd4f88b7c852f232798fbaccda8c90b24
font_01_sfnt_off0000a740.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA740 10616 bytes
SHA-256: 115f416ea0155ddaa3a5905a6256ae334e6d76f1031824a4f4b735f247dbd4dc

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