Malicious PDF — malware analysis report

Static analysis result for SHA-256 75e3ff81c5fccaae…

MALICIOUS

PDF

60.1 KB Created: 2020-07-31 13:13:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9960ac9a8fc918f8c3a886ace8180e0c SHA-1: 79a3fa22c77118a3f69307e92120d6dbcf5f6134 SHA-256: 75e3ff81c5fccaae5c8353e86925d80e2685c470768e3debb88da0419a4123fd
194 Risk Score

Malware Insights

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

This PDF file contains multiple links to redirector infrastructure, specifically pointing to 'ttraff.ru'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_UTM_REDIRECTOR_LINK' indicate that these links are used to funnel users to potentially malicious sites. The presence of a large number of external PDF links, as noted by 'PDF_SEO_LINK_FARM', suggests an attempt to manipulate search engine results for malicious purposes. While no scripts were extracted, the embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution 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.ru/pify?keyword=ecology+and+environment+pd+sharma+pdf In PDF document text
    • http://files.mtviewbaptistchurchal.org/uploads/1/3/2/7/132740965/poxefamubel-dopirowoj.pdfIn PDF document text
    • http://files.jenniferdanahart.ca/uploads/1/3/2/7/132740285/potomapafupa.pdfIn PDF document text
    • http://files.fitnessdetermination.com/uploads/1/3/0/7/130739621/a8d1f5de79414.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/1/0433/0687/7080/files/jonexosorovofevovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/31584570325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3106/files/pezajumukupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/fezimevidigopufogubasalig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/42150348495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/44920664416.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7174/files/powisutumogixazebere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4392/9762/files/59009971934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2978/files/78198098288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/76552025935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8185/9225/files/7576927167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/nevebeximexozene.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 4

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_off0000722a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722A 18584 bytes
SHA-256: f6ea1976b14c41c65dfb19aea9c894e0eb2b9437d7933429fe881e351d40fe5d
font_01_sfnt_off0000accc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACCC 5476 bytes
SHA-256: db1e3064dce23744d7a114bf432a1547686a3f50653ce7dfd9219014684130b5
font_02_sfnt_off0000bf48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF48 10772 bytes
SHA-256: 97d75506eb826e545d02cbeb85c21a12fd339dff044adaf51df94da8ee3cf5e1

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