Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dc301fab1fca0b1…

MALICIOUS

PDF

45.5 KB Created: 2020-08-11 07:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e2ff5ac3df9d92dee19c6996085c1f5 SHA-1: fe3c8b05f62c14eb17672f34383c60ea92aa38e7 SHA-256: 6dc301fab1fca0b19c0e5fd2e2e79b12c45448f6d2707446496c3e7d5cbd63e8
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though partially corrupted, suggests a lure related to a 'bootstrap css tutorial for beginners pdf'. The presence of a large number of SEO-optimized PDF links indicates a link farm or phishing attempt to drive traffic to potentially malicious content. No scripts were extracted from this sample.

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=bootstrap+css+tutorial+for+beginners+pdf In PDF document text
    • http://files.allthingswalking.com/uploads/1/3/1/4/131453114/545897b78bb.pdfIn PDF document text
    • http://files.doula-care.com/uploads/1/3/1/3/131379420/2057198.pdfIn PDF document text
    • http://files.wildharvestbotanicals.ca/uploads/1/3/0/7/130775537/sulamovejo_daduweve.pdfIn PDF document text
    • http://files.chelsifryphotography.com/uploads/1/3/1/1/131164009/a239aa8cfd68.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/1/0440/7181/3285/files/air_source_heat_pump_water_heater.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/67803427105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/74850494663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/69775002325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3670/2870/files/carbon_nanotubes_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0985/8984/files/nidamozatebit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2519/3368/files/punibiladularufirulaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3262/4797/files/silevowabonekoxosowufoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4410/8445/files/bolupirovubewepaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/92186053786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8700/2790/files/96013718935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/sinuzowuwodezari.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 2

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_off000067a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67A3 5512 bytes
SHA-256: ad4c65edfb7a5d06b9cdaf0be15ede18a6ee435260770f273cdcbe4df66d16be
font_01_sfnt_off00007a69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A69 14816 bytes
SHA-256: b2d12b451f9e26e273cd087c2c1efb675cddeff10f85a7ac769d5c4828d41f3f

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