Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8fabc9d7323b970…

MALICIOUS

PDF

38.9 KB Created: 2020-09-17 16:25:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ba4e173cdd59615cb493192ed110c64 SHA-1: 5c76a956c831ff2770c497e2b9c368b0d25702e1 SHA-256: b8fabc9d7323b97085b33d5a6142f131c489883ec136a1c5164d744d0ab98ddd
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary heuristic indicates a malicious redirector link to 'ttraff.me', suggesting an attempt to lead the user to malicious content. The document body, though heavily obfuscated, contains the same URL and other PDF links, reinforcing the attack pattern. 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.me/wix?keyword=cohen+testimony+televised+streaming In PDF document text
    • http://files.stringsoil.com/uploads/1/3/0/8/130874278/a099b2da33.pdfIn PDF document text
    • http://zetade.mariettasquarefarmersmarket.com/uploads/1/3/1/0/131070382/fajoxomejajej.pdfIn PDF document text
    • http://dugat.chieftutor.net/uploads/1/3/1/4/131483249/c090bfcc0f99c.pdfIn PDF document text
    • http://tajesex.alphafrenchbulldogs.com/uploads/1/3/1/4/131408024/dotorupukisowamawu.pdfIn PDF document text
    • http://letoz.spknative.com/uploads/1/3/0/7/130740072/fewagutis-jobadasek-bajedadakalom-balepozi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://0ce79d4d-bb8e-43a2-9bfa-a5403fa8e8ac.filesusr.com/ugd/3a38e0_55485a767e0f4481bbfb003bd123a1a6.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4683/6123/files/pre_calculus_grade_11_tg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9471/2228/files/deja_vu_dream_catcher_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/elbow_bursitis_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8172/files/434876467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1606/files/simple_business_proposal_sample.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 3

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_off00005bb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB3 5304 bytes
SHA-256: be57652bd4fdeee83b308265eccc312d006eb480f16617ef1de427956b62f9b6
font_01_sfnt_off00006d96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D96 9704 bytes
SHA-256: 0d44bc7dda3bbc78dc2731867eff3369426f14acbceb0b98a8be6ca3b6f4c83e

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