Malicious PDF — malware analysis report

Static analysis result for SHA-256 344a4def73d38df1…

MALICIOUS

PDF

65.4 KB Created: 2020-08-14 07:08:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9306f5f1252748d1bc706ab32e63d85c SHA-1: 9f9967a46da558765792ff4a28dcb12bda4a7300 SHA-256: 344a4def73d38df1c92fcb17ebfcdacd24021dfd5e916c1398bd4035d3b9edac
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to a redirector service identified as malicious. The primary lure appears to be a PDF about 'Kolam with dots flower designs', which redirects to `https://ttraff.cc/wb?keyword=kolam%20with%20dots%20flower%20designs%20pdf`. This suggests a phishing or scam campaign leveraging SEO-optimized PDF content to distribute malicious links. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/wb?keyword=kolam%20with%20dots%20flower%20designs%20pdf In PDF document text
    • http://files.kmbaudier.com/uploads/1/3/1/1/131163664/4b74e90b.pdfIn PDF document text
    • http://bugir.seasidejewellery.com/uploads/1/3/2/7/132710621/detivuxorekog.pdfIn PDF document text
    • http://files.nataliajdonofrio.net/uploads/1/3/0/7/130776567/1740773.pdfIn PDF document text
    • http://files.juliannegunn.com/uploads/1/3/1/4/131483830/lujaxelolixasux.pdfIn PDF document text
    • http://fizulil.synaesthesiajournal.com/uploads/1/3/1/1/131164250/2235d51967.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/1/0428/9966/9151/files/49882154583.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0165/9043/files/63044735920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0944/0935/files/agriculture_notes_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0528/8352/files/56069815501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7657/4620/files/17310937338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4948/3426/files/mogimiguxadapitiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0804/8808/files/muzogupufep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3015/0296/files/xamewusufiwurolixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0159/3505/files/left_right_left_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6224/7067/files/snowboard_size_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0667/2546/files/78397182236.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3164/1767/files/71292470413.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_off0000c339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC339 5516 bytes
SHA-256: 9924bb64aa75ae816d85a77d9a956f8c29a4e640629e4fec4b4cc683938df141
font_01_sfnt_off0000d5ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5EF 10016 bytes
SHA-256: cca6999e97000f1349c5e3abe28f1ab0be7622103df10369c8b0593f6223c233

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