Malicious PDF — malware analysis report

Static analysis result for SHA-256 15e1d21982743b5b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-25 10:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c7676422336f2cecd910855d58b39d66 SHA-1: 4d8e09531e60bd166e496262646b4c78aae412ad SHA-256: 15e1d21982743b5bd45f5c337f85bccb7534f58b11ebe4b39ba21a73eef362b8
194 Risk Score

Malware Insights

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

The PDF file contains multiple links, including one to a known malicious redirector at 'ttraff.com'. The document body and embedded links suggest a phishing attempt to lure users into downloading more PDF files, likely as part of a link farm or SEO manipulation scheme. 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=aptitude+and+reasoning+questions+pdf In PDF document text
    • http://files.pbfitnessmidleton.com/uploads/1/3/1/3/131383581/5184921.pdfIn PDF document text
    • http://files.privatepool.net/uploads/1/3/0/7/130739328/kapefonulunejonov.pdfIn PDF document text
    • http://files.filmandartacademy.com/uploads/1/3/1/1/131163617/dasalojugedutabu.pdfIn PDF document text
    • http://towobu.pedalthepennines.co.uk/uploads/1/3/1/3/131398091/konipo_mivorodigipiw.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/1/0434/0216/6435/files/96611322711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9279/4774/files/78272065829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0508/2776/files/gewadewomirorofijiwok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5469/3537/files/axolotl_resumen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1274/3580/files/lorifuwiluf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/62647766149.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8645/3663/files/the_aryavarta_chronicles_book_1_govinda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/wodiparip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3093/6733/files/7091345553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/84957351043.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0785/2192/files/54319206323.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
🗂 Part of campaign: danielstorage.com 7 samples

Related samples 3

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_off000069d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69D3 5292 bytes
SHA-256: 10e908a87f26e837f200a825b172313aa539ec7bd7b7714da6f3056c9bd254b6
font_01_sfnt_off00007bd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD7 14568 bytes
SHA-256: 670f3ee2b07aa4db157a443c6fd102509cf680c551eb6a7cb5d8c924644ededb

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