Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca8ec0170db3e40…

MALICIOUS

PDF

46.3 KB Created: 2020-09-16 19:54:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ed2e721e0b1e08313f51ed9ffe07d47 SHA-1: beeae6c2559c3ae90f69dba21b56155f439715f9 SHA-256: 9ca8ec0170db3e406d36757f6e7ecec55bc6b84e25d8d8f602812f607b8d441f
194 Risk Score

Malware Insights

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

The PDF contains a lure for free Amazon gift cards, directing users to a malicious redirector. The ML classifier strongly indicated maliciousness. The document body and heuristics confirm the presence of links designed to lead users to potentially harmful content, specifically a link farm hosted on Shopify and a redirector on ttraff.club.

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.club/wix?keyword=free+amazon+gift+card+codes+list+2020+no+human+verification In PDF document text
    • http://gizefubi.janetreidmanphotography.co.uk/uploads/1/3/1/3/131378991/pufutupupunul.pdfIn PDF document text
    • http://files.bilingualdevotional.com/uploads/1/3/1/4/131454051/lemumomufenemu.pdfIn PDF document text
    • http://files.wereherenonprofit.net/uploads/1/3/2/7/132740930/1783848.pdfIn PDF document text
    • http://teleki.bedfordbiblechurch.com/uploads/1/3/1/8/131857252/ea8b0.pdfIn PDF document text
    • http://jepigige.durhamregionroofing.com/uploads/1/3/2/6/132681479/f6320cc.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/1/0427/4572/5094/files/vesanilofurodaduduvuwevun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1969/7308/files/female_gametogenesis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9249/8850/files/bc_pnp_guaranteed_job_offer_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0753/3475/files/baxajul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/palafasejuzanuz.pdfIn PDF document text
    • https://b10c2c86-4daf-46e2-b678-67f4b162267c.filesusr.com/ugd/93c935_a4cecb474dc54d059195edce6e0ee618.pdf?index=trueIn PDF document text
    • https://c6799712-adcc-46bf-9c4c-d2f047e74123.filesusr.com/ugd/c57cae_3bb606ec47d0427abde8d210c9850dd6.pdf?index=trueIn PDF document text
    • https://640f99fa-035d-404e-bf00-3df67c4a2389.filesusr.com/ugd/76aeb6_08522dabd1044a53b92ae01b9441baee.pdf?index=trueIn PDF document text
    • https://49f2f6ac-5606-4ce7-bcae-1d9ee3700d20.filesusr.com/ugd/d1c05f_e9699e49b81c455faa513ac83dd62867.pdf?index=trueIn 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 8

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_off000073f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73F4 5776 bytes
SHA-256: b03595c664b207603e6753382019d1af0f406b24b6bb83d67cd83a11007b8e42
font_01_sfnt_off00008783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8783 10624 bytes
SHA-256: 8491530f454b51ffbd2d30ece783c4f4f9162462bd5554fabe01c84bba07055e

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