Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea51aa577d8cc3ed…

MALICIOUS

PDF

52.9 KB Created: 2020-08-09 05:37:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0a954315dadcfb46fe5350450a99d73 SHA-1: 5e943ca3e878c2f3499310753bbb3745166f6ada SHA-256: ea51aa577d8cc3ed8e85bac6d932e32138760c050e0d7d63c51e3aa9afcdffc7
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=handyman+services+list+pdf'. Additionally, the document exhibits characteristics of a PDF link farm, with numerous embedded links, many of which are to Shopify domains hosting other PDFs. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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=handyman+services+list+pdf In PDF document text
    • http://files.jlsvalves.com/uploads/1/3/1/6/131636914/kibixube.pdfIn PDF document text
    • http://files.christianlitforafrica.org/uploads/1/3/1/3/131380177/d3daf23.pdfIn PDF document text
    • http://files.djcattrellauthor.com/uploads/1/3/1/8/131856770/e4b1b84b.pdfIn PDF document text
    • http://files.judithasem.com/uploads/1/3/1/4/131437513/4d7bf7c7c0f1.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/1/0430/0272/4506/files/numbers_1_1000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/70069254957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/63690721805.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1608/3877/files/7308197269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7238/8249/files/73033819166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/16536725220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8867/files/22602138586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7238/files/jinofufanokisutovixejizuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9032/1313/files/12983957418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1896/0545/files/somebody_save_me_smallville.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5184/3737/files/oriflame_catalogue_november_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6615/4394/files/87983987651.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
🗂 Part of campaign: christianlitforafrica.org 4 samples

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_off00008ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF6 5424 bytes
SHA-256: 27cc5cfe9caa2e12231bcae7a2bcc18153d447d3caaee324559552596369ec1d
font_01_sfnt_off0000a262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA262 10652 bytes
SHA-256: 762f2ad139531136372c132c0aec88e58018333b53124c89c341f1c8e2d4a9d2

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