Malicious PDF — malware analysis report

Static analysis result for SHA-256 becd839f0481175d…

MALICIOUS

PDF

50.7 KB Created: 2020-08-12 10:52:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8141002ca1556be7601dc0e3da9f7b0f SHA-1: 09336ea0af9614a48408a939082545f4f204bec8 SHA-256: becd839f0481175d498563e5abff35c74dfa38038c88c34eab8edcc506baedce
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.com/pify?keyword=payroll+management+software+pdf`. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to obscure the malicious redirector. 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=payroll+management+software+pdf In PDF document text
    • http://nalofe.sledgedistillery.com/uploads/1/3/0/8/130874254/556984.pdfIn PDF document text
    • http://files.globaltesoltraining.org/uploads/1/3/1/6/131606965/9821aee.pdfIn PDF document text
    • http://files.nosilafacepainting.co.uk/uploads/1/3/1/1/131163691/7c03361774665.pdfIn PDF document text
    • http://files.lauracbucci.com/uploads/1/3/1/4/131413678/minanugasa.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/1/0431/1564/3031/files/33596443650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/8374887146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6703/1200/files/18025387819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8780/7129/files/python_simple_https_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/pathfinder_bestiary_2_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1667/4713/files/sudetunajijafisif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9313/1425/files/77644044513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9157/4430/files/pokemudumasawenabigaxoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0002/1667/files/feguzagudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2338/2166/files/wumunud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/runovujenet.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 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD4 5556 bytes
SHA-256: a9a23c1e2afd3d37521378bdc8bd180c43083be1a06250ec390e988ca3ef1fbe
font_01_sfnt_off000090b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90B0 2268 bytes
SHA-256: 7f38c7bd3076d5ec567b373f8788658f617417f44aeaffad1c2d563936ecbb0a
font_02_sfnt_off00009ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC0 10224 bytes
SHA-256: 4f18c420dd105a18c54c1ccbf60e4b54ca286622e675f0030756d31f551c4065

Open this report in the interactive analyzer, or submit your own file for analysis.