Malicious PDF — malware analysis report

Static analysis result for SHA-256 327dcfc99978e821…

MALICIOUS

PDF

48.0 KB Created: 2020-08-02 22:44:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: edc9a902f94163282820079c91be157e SHA-1: 9024b8bbbcf99144f05ad959875fe3d43ff23435 SHA-256: 327dcfc99978e8215c892a667f348100b7ec210d76e7fcbfaf42263d61a9c4c0
194 Risk Score

Malware Insights

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

The PDF contains a link farm of numerous PDF files hosted on various domains, including a primary redirector at https://ttraff.com/pify?keyword=list+of+reddit. This structure is indicative of SEO poisoning or a similar traffic-generation scheme designed to lead users to malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=list+of+reddit In PDF document text
    • http://files.circlecircushoopdance.com/uploads/1/3/1/3/131398419/5254103.pdfIn PDF document text
    • http://files.theneighborhoodtheatrechicago.com/uploads/1/3/1/6/131637074/4146275.pdfIn PDF document text
    • http://files.jarodhector.com/uploads/1/3/1/0/131071286/4899149.pdfIn PDF document text
    • http://files.pedrohemsley.com/uploads/1/3/0/9/130969291/godajeserusegadiwemi.pdfIn PDF document text
    • http://files.lakeeffectclarinetquartet.com/uploads/1/3/1/4/131438829/3896453.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/1/0433/1690/4104/files/xipazuwegav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/sumisugab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/52191862920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/93911004357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3064/1829/files/goxagej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5470/3526/files/hornady_reloading_manual_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/robuwuxofafolisoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1348/0343/files/18212482689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9422/8630/files/59508718724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9636/7511/files/88853265701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5650/4744/files/69801270454.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_off00008022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8022 4600 bytes
SHA-256: a3ac843ddaf642c630f06b579b4f9554ba738edd54976a284849f86ae73568dd
font_01_sfnt_off00008fd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD7 10300 bytes
SHA-256: 65c81814f00c82d03e62373fd45f015479c53fe47e0c1ce27e56518d5a2f1c09

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