Malicious PDF — malware analysis report

Static analysis result for SHA-256 335a0972138ca430…

MALICIOUS

PDF

39.8 KB Created: 2020-07-29 03:12:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8abd366d70274aac7c8f3c25f68f8c89 SHA-1: 492681ddd4b8437dd330c8c059dc67eceac8a7e9 SHA-256: 335a0972138ca4302f7f414ab945f358811ec691ef50c551413d482f2523d671
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.com. The document body, though heavily obfuscated, appears to contain text related to the lure of decorating unicorn-shaped candies. The primary attack vector is likely social engineering via a malicious link embedded within the PDF, leading users to a malicious site. No scripts were extracted, limiting the analysis of further payload delivery or persistence mechanisms.

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=como+decorar+bombones+en+forma+de+unicornio In PDF document text
    • http://files.mutationpennants.com/uploads/1/3/0/7/130775484/c17e79e42.pdfIn PDF document text
    • http://files.pawneecityactivities.org/uploads/1/3/1/3/131384436/7982693.pdfIn PDF document text
    • http://files.peggypetersen.com/uploads/1/3/0/9/130969358/8088577.pdfIn PDF document text
    • http://files.sspeterpaulpassaic.org/uploads/1/3/0/7/130775784/5596887.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/1/0433/3672/8726/files/39717445269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7990/9028/files/tijefok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7650/1147/files/fonigekixivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/85607184681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/49181926903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/54892301935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3840/7845/files/wudinosozaxutajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/pavax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/29264890732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3470/6083/files/najegaloguwexolovawuzalag.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005cf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF8 5100 bytes
SHA-256: 228f408e658ae8f19d35fd3e601317c17dcb7ab11658c552b5afaca5cd8faa8c
font_01_sfnt_off00006e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2E 10864 bytes
SHA-256: 241f67ee299b8804a4aab6f139ec3941751791ea0a6ba4b6096545d1f501441c

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