Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a5cf6bdc880d8dc…

MALICIOUS

PDF

73.9 KB Created: 2020-08-11 05:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ab73e8d1e0bb8a378985a5d9e5dc7036 SHA-1: d86fe77eade8862e577bafbbc1a9a276b7ec11a3 SHA-256: 6a5cf6bdc880d8dcb9a29dcbbd4527d9a51e37b068d82ce17ebab8a7eb93b19f
194 Risk Score

Malware Insights

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

This PDF file contains numerous links to an SEO redirector, specifically `https://ttraff.ru/pify?keyword=slavery+in+ancient+greece+pdf`. The heuristic firings indicate a malicious redirector link and a link farm, suggesting the document's primary purpose is to drive traffic to malicious sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to trick users into clicking through to potentially harmful content.

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=slavery+in+ancient+greece+pdf In PDF document text
    • http://files.cbd-iai.org/uploads/1/3/1/8/131871699/newefujaludexab-wojebemuvege-ninikapedewur.pdfIn PDF document text
    • http://files.allendaleinsurance.com/uploads/1/3/1/6/131607163/mupevojizamufowike.pdfIn PDF document text
    • http://files.a2consultation.com/uploads/1/3/1/3/131384081/kosilelov_zukozajawoxa_famuna_tiwaviralupom.pdfIn PDF document text
    • http://sowuji.warrencojrfirefighters.com/uploads/1/3/1/4/131411896/ba944cd841db9.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/1/0428/2672/7580/files/medium_is_the_message.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4484/7261/files/52579428557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3975/0294/files/nevawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3250/files/roxugoxesize.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9228/5342/files/75878635596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/38990955538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20675343362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/3000/files/16517742544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7470/6853/files/vebupivutivuforatonunoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/getexalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1006/3527/files/sopilugefuzitufexaguj.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 8

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_off0000d85c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD85C 5088 bytes
SHA-256: f8ac3e2ee4d119e9fc0665a98fc7a874041dad9f0e4b9e7c7f0325c903ff3c9a
font_01_sfnt_off0000e9b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B8 10192 bytes
SHA-256: 8c5a3d13df3dac7f6ba72967f561feb986ecb04bc92cb50e5c795d563d1d2816
font_02_sfnt_off00010c8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C8F 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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