Malicious PDF — malware analysis report

Static analysis result for SHA-256 91b6ade190ecefc6…

MALICIOUS

PDF

42.3 KB Created: 2020-09-21 06:22:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b94e160f80ca3da50f5f74932c0f35a5 SHA-1: 0bf29b8e93f2f15b22ec9b19b3c7a7add4104663 SHA-256: 91b6ade190ecefc64ba0dc5153d177cd1e3e2d348f0d0a26abd5a647b9019b88
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL disguised as a manual title. The ML classifier strongly indicates maliciousness. The primary malicious URL is https://ttraff.link/wix?keyword=a+o+smith+commercial+water+heater+manual, which is designed to redirect the user to further malicious content. The presence of numerous benign-looking PDF links on Shopify suggests an attempt to blend in with legitimate content while distributing the malicious payload.

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.link/wix?keyword=a+o+smith+commercial+water+heater+manual In PDF document text
    • http://files.circular-canary.com/uploads/1/3/1/3/131398231/durojoboriruj.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/1/0429/2732/5343/files/lelafizugilapuvuwolajuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8475/8696/files/dudedimogupesuxiwimoraje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6835/7796/files/room_on_the_broom_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2344/9760/files/85207724822.pdfIn PDF document text
    • https://a112fa92-5252-4e53-b2c2-fb77139ed4c8.filesusr.com/ugd/067ecb_2ce96abda0454a078d805ec237b515e8.pdf?index=trueIn PDF document text
    • https://5b134469-079c-457f-96c6-ac325d9db828.filesusr.com/ugd/529ba0_99713cb550ec4c57aa4d193687d45e13.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7808/1942/files/batman_arkham_origins_cheats_codes_p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0349/4043/files/fabibatinasazadogaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9367/8497/files/bertrand_duopoly_model.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 5

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_off000067b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B5 5120 bytes
SHA-256: bd8bec18e2832ccdfee0733a5e011f4b29da39b733adecf6badff687c8c060ee
font_01_sfnt_off00007901.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7901 10304 bytes
SHA-256: 95ce20701bdef4d47433f9b4d3efb468f28ce96cfdd2dab26baf0b797572616a

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