Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd94e37744abdc8d…

MALICIOUS

PDF

50.7 KB Created: 2020-08-24 05:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 740a25359d5264c2cc6c7d258e7de1d3 SHA-1: a7b94f2af307c77a0cd10f57df23e6147e79300e SHA-256: dd94e37744abdc8dfeb6eb11f668ff8ce7f1ff33bc550c16069a85002f0d46a0
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on Shopify. One of the primary links redirects to a known malicious domain, ttraff.cc. This suggests a link farm or redirection tactic to obscure the final malicious destination. The document body, though partially corrupted, contains text related to reading comprehension passages, likely a lure to disguise the malicious intent.

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=simple+reading+comprehension+passages+pdf In PDF document text
    • http://dezudax.icmindfulbirthing.com/uploads/1/3/1/4/131453060/0d094.pdfIn PDF document text
    • http://files.kelownaweddingvideos.com/uploads/1/3/1/3/131383541/61dac62f5dad1b7.pdfIn PDF document text
    • http://files.whippetclubofscotland.co.uk/uploads/1/3/1/4/131408664/e0a846.pdfIn PDF document text
    • http://dupem.icanisciolti.com/uploads/1/3/2/7/132741555/rogopezelazaxiwukuf.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/1/0431/8694/6206/files/cours_d_anglais_grammaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2381/9164/files/aaye_aapka_intezaar_tha_dj_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1533/8144/files/wibojupamaperefoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6690/8063/files/renagogizivixusano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/nobamexoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/60343136776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8701/7637/files/42934609353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/44386142986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5022/8119/files/vasimadovuzapuguwoxikofu.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_off0000875e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x875E 5672 bytes
SHA-256: 38cc17a1aba05848443bb330e953c7ef018c8e7c36f2a95325bfbedf4505eaa6
font_01_sfnt_off00009a6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A6C 10656 bytes
SHA-256: e1cb7700969b141adc9a3b79516f7f8ee7c5b6fe33b60b63d37b288f3f0e2d03

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