Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4aa0997776584c3…

MALICIOUS

PDF

41.0 KB Created: 2020-08-27 18:16:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5858dafa0eabd08cb8885c9b836835eb SHA-1: 5b23c9cd311006e656068c8f970950ae95a949bd SHA-256: d4aa0997776584c3d0ff08375f19ffc9ea8af4e984525abcc3f4e8a2cf552cbb
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and references 'Minecraft cathedral schematic', likely serving as a lure. The file also exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on Shopify. The primary attack vector appears to be social engineering via a deceptive link within the PDF.

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=minecraft+cathedral+schematic In PDF document text
    • http://jutev.themanimalchronicles.com/uploads/1/3/1/8/131871991/daxedaga-giwujofona-tamidejan.pdfIn PDF document text
    • http://files.all2run.com/uploads/1/3/1/8/131871535/e700c947.pdfIn PDF document text
    • http://files.karategma.com/uploads/1/3/1/6/131607310/607dbb114fe7203.pdfIn PDF document text
    • http://zafisu.kristofferalbrecht.com/uploads/1/3/0/7/130776699/574ed2.pdfIn PDF document text
    • http://files.sterlingstables.com/uploads/1/3/2/7/132710565/wuwepafijojefe.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/1/0434/7920/4006/files/bevetelivobo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1444/7519/files/saki_saki_song_video_dj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37638787324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/88687304273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7142/9016/files/bornholm_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0792/5664/files/dadibogikorutifizov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8799/5814/files/mugisovofeduwituxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9697/files/31787292975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7330/5762/files/14611808877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/asp._net_versus_php.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/how_to_write_a_newspaper_article_example.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_off000061ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CE 5264 bytes
SHA-256: c6f27407fe28da1f288f8f830d0f62e0f93242cac9f70c5c687b8c5aa3b67aa5
font_01_sfnt_off00007387.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7387 10384 bytes
SHA-256: d09183fa3dc4c442ba56c16678b35acc03d7a274412eab1c89db1d4721788434

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