Malicious PDF — malware analysis report

Static analysis result for SHA-256 2611e0e96496e5d7…

MALICIOUS

PDF

43.0 KB Created: 2020-08-11 16:08:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0cca9b498e2ff6ab4debe611f3c82a3 SHA-1: bbdacdfd0551cdc16230308887ca5116debdbdee SHA-256: 2611e0e96496e5d71cf0b3cff033dd7dffd29eec435c7f7865a7ddf66c61969f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=admixture+in+concrete+pdf'. The document body, though heavily obfuscated, contains this URL and other links to Shopify-hosted PDFs, suggesting a link farm or SEO poisoning tactic to lure users to malicious content. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=admixture+in+concrete+pdf In PDF document text
    • http://files.wristybiz.com/uploads/1/3/0/7/130775676/vokolurenem_wunadozami.pdfIn PDF document text
    • http://files.psepa.org/uploads/1/3/2/6/132682826/ribipuder.pdfIn PDF document text
    • http://files.spanish.thelanguagehub.net/uploads/1/3/0/7/130740465/1497352.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/556087451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/63873700914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1274/2550/files/jailbreaking_ios_7._1._2_iphone_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/zamatuzeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5778/8568/files/carbon_steel_grades_and_properties.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5934/7618/files/77824171529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0628/0355/files/27038042630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8769/9876/files/silabus_osn_biologi_sma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8691/3431/files/64828759769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1220/2389/files/kinetics_of_anionic_polymerization.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2070/6204/files/52784384151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7675/5349/files/46022645800.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 6

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_off00006022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6022 4820 bytes
SHA-256: fccb12b2b2a8f5b8f9fca4152c21611703724deb546a452413d693b8b757540b
font_01_sfnt_off00007069.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7069 9580 bytes
SHA-256: 86e66afa66305a478aba1106e415193f3a743c7d6699e1c6f0fe147c706f3d49
font_02_sfnt_off0000911a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x911A 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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