Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea466b124b220091…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 16:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5822e13b866258d3505fe8be96280da9 SHA-1: d749a3cfb26b7fff20bb553f49e90e2f02e6dca3 SHA-256: ea466b124b2200918aaccb8efd52b2d9202884529493b371612ffe4fcbc60b2e
194 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=simple+rental+agreement+form+pdf'. This indicates a phishing or social engineering attempt to direct users to malicious content. The document body, though heavily obfuscated, contains text related to a rental agreement and the URL itself, reinforcing the lure. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=simple+rental+agreement+form+pdf In PDF document text
    • http://files.elizabethwestbrook.com/uploads/1/3/0/7/130776081/9717580.pdfIn PDF document text
    • http://files.mixedattainmentteaching.com/uploads/1/3/1/8/131856392/6728854.pdfIn PDF document text
    • http://files.anewdawnconsulting.com/uploads/1/3/0/9/130970001/zawigunakinip.pdfIn PDF document text
    • http://files.stillpointproject.org/uploads/1/3/0/7/130775222/634dc969.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/1/0427/5548/9948/files/59557888529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8560/1695/files/10946738210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/powulapewokibanawewejuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/13617836092.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7755/7660/files/acs_study_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1048/files/70253259282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/vomigulovebezet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/dipisopijune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4797/1990/files/sink_master_750.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6933/9808/files/18550364404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/50989942431.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EA2 5288 bytes
SHA-256: 09b0be4fb34918a70586325aaef39e0d75db3a3b4ce1d5ea411ae682d6df40a2
font_01_sfnt_off00008086.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8086 10296 bytes
SHA-256: a0976d6c9196b6ffb64dc17e0131bcb0f192ade4f803add741fc1919dd7df146