Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1ae8ab78b4729ad…

MALICIOUS

PDF

41.2 KB Created: 2020-08-17 06:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 79c3dd63564956cf6713b051f2843eab SHA-1: a55ce2d85044640472d85a672c6571e4cc0184c5 SHA-256: b1ae8ab78b4729ade98308f5c574d3b8e0e816a19ae36701e0af81f7f9a9d76a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a deceptive title 'Cdr stock information' and embeds a large number of external links. One of these links, 'https://ttraff.cc/pify?keyword=cdr+stock+information', points to a known malicious redirector. The document's structure suggests it is designed to act as a link farm, potentially to distribute further malicious content or phish for credentials. 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.cc/pify?keyword=cdr+stock+information In PDF document text
    • http://vesuf.schonestandardschnauzer.com/uploads/1/3/1/4/131408791/movomumodixe.pdfIn PDF document text
    • http://repib.selectbuildersinc.com/uploads/1/3/0/9/130969140/b9711f8e9857.pdfIn PDF document text
    • http://gisosokag.russkeeneylpc.com/uploads/1/3/1/3/131398547/5272195.pdfIn PDF document text
    • http://fitak.fox3partners.com/uploads/1/3/1/4/131437363/lixiliwup_gitidovafa_tesolusofivafa.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/1/0430/9785/0010/files/fegolip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7668/8798/files/83017159136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/27156745305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8794/4094/files/46977651418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4953/4111/files/lirasiximilabotakikimozir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3213/3278/files/jk_bank_exam_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0133/8266/files/beginners_guide_to_meditation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/norezavizudufofilawaxuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0571/4338/files/sojenawugak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.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
🗂 Part of campaign: chicagotrainingcenter.org 3 samples

Related samples 1

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_off0000629d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629D 5104 bytes
SHA-256: 0d674be102839ab39da346133061e3b4e80351a65d0aa151d5549bed2fe04b1d
font_01_sfnt_off000073dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73DD 10700 bytes
SHA-256: 57fa42940999da34f5dacfbcc80c430e026fd84619e9988096e8ecbc77bb1e4c

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