Malicious PDF — malware analysis report

Static analysis result for SHA-256 85b038b668bd67f0…

MALICIOUS

PDF

38.9 KB Created: 2020-09-22 06:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bd024a75c78952c04d008e25eb49493 SHA-1: 0978fb925efe18b39ef3d4d79b5f5ef8eec9156a SHA-256: 85b038b668bd67f0924516b23a4c857b3738c28936f0275f4d5fa66153fd1b5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of embedded links, many of which point to redirector infrastructure. The primary lure appears to be a fake download for 'Stickman hero 2 mod', directing users to the malicious URL https://ttraff.club/wix?keyword=stickman+hero+2+mod. The ML classifier strongly indicated maliciousness, and the presence of numerous links suggests a link farm or phishing attempt.

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=stickman+hero+2+mod In PDF document text
    • http://ritusigid.runninonfaithtc.org/uploads/1/3/0/7/130775358/7634734.pdfIn PDF document text
    • http://foxubema.metrotreeandcrane.com/uploads/1/3/1/0/131069839/siven-molewowilurugej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://99d66d5b-c3d3-4c42-a416-0a46ef79c14d.filesusr.com/ugd/0010c8_7b6b81f3bf5346c78cbea5d8803386be.pdf?index=trueIn PDF document text
    • https://3cfb8d49-77ed-4156-8156-2315f47e8d2d.filesusr.com/ugd/3d7af5_4b366c80e1cf480da1e15f7d3e15e74b.pdf?index=trueIn PDF document text
    • https://791399e7-31ef-43bc-9473-6eb75898c7c3.filesusr.com/ugd/e7e4a0_09ec224d0ae149f28a27d531b5dd8128.pdf?index=trueIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/71210466410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/46745351397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5094/1078/files/graph_paper_multiplication_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4282/4611/files/aneurisma_fusiforme_cerebral_tratamento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4378/1792/files/egan_library_hours.pdfIn PDF document text
    • https://a69c960a-ead5-467a-b5cb-7273e6dd946b.filesusr.com/ugd/2ca09c_49d9a7024d5f4c91b288ef569dfb4f7b.pdf?index=trueIn PDF document text
    • https://2c054c0a-54ba-4e53-a0a2-eae6a5a6a60c.filesusr.com/ugd/430cb2_95689d0437bf41f3aa83261eb728bf84.pdf?index=trueIn PDF document text
    • https://fc42af31-7e21-4fc4-90b8-303c3d270f51.filesusr.com/ugd/1a94e8_050b469898954545b8f90a7f933754e2.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 7

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_off00005928.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5928 5268 bytes
SHA-256: 24e2e66e1efc3d0f786669e4854cedd20266a1e65d353e3311832c2e6136c927
font_01_sfnt_off00006aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AEA 10500 bytes
SHA-256: 22521887d20a01d67e35ce96916bbc9d4867e1e10018ac3f44316f5d4b5f362c

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