Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ab42d6f3a3e55a…

MALICIOUS

PDF

35.2 KB Created: 2020-08-04 00:27:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0b54b00ed6771d47c80e1b2d7d1fae02 SHA-1: 2745b7d98a4a43877857df7d498a14fe7c87d753 SHA-256: 41ab42d6f3a3e55a434fa12c4487f975f3c455ab64479654608d04bb98cad4c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, contains text related to a dictionary and the malicious URL, suggesting a lure. The ML classifier strongly flagged this PDF as malicious, and the presence of a redirector link indicates an attempt to lead the user to a harmful destination.

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=oxford+advanced+learner+s+dictionary+9th+edition+international+student+s+edition+pdf In PDF document text
    • http://files.saneegypt.com/uploads/1/3/1/8/131871714/zekag-vanimamib-fonibim-xeligagez.pdfIn PDF document text
    • http://gunovox.allisondeecalligraphy.com/uploads/1/3/1/6/131637016/tagodosojam-jewerefejaredu.pdfIn PDF document text
    • http://files.thebeautyladykent.co.uk/uploads/1/3/2/6/132681026/fbde7c6.pdfIn PDF document text
    • http://files.frontofbicycle.com/uploads/1/3/0/8/130814717/funapake.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/1/0430/5338/3833/files/1638320775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9814/4932/files/sezekedipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1009/7313/files/14922900765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3887/3512/files/35104934629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1519/1202/files/7076914075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/96825365345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6960/9886/files/64895471095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/nonixilopini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/wipanon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/pudoximaxosevowetem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6825/2565/files/20493308995.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6587/6379/files/68054160369.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_off000046bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46BD 5656 bytes
SHA-256: e4184b0e3fff0185560158cd28a8b3d5e64e0365f1f0358094f11a9d5e26a8b5
font_01_sfnt_off00005a01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A01 13028 bytes
SHA-256: 9a1c8f70b98f72b6c79a165e6b7411e2a15273eb72bb8b6d851f026cc6e1fe64

Open this report in the interactive analyzer, or submit your own file for analysis.