Malicious PDF — malware analysis report

Static analysis result for SHA-256 aac93434c6197c11…

MALICIOUS

PDF

39.3 KB Created: 2020-08-20 01:41:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8d2967baa006f58e336abaf78f3961f1 SHA-1: 7592ca879013c43925075d498e204a332656bd13 SHA-256: aac93434c6197c1131d280e054764df5950fcfc9092363b85a537dc27c3ea467
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, includes text referencing a 'Symantec dlp 12.5 administration guide' and the malicious URL 'https://ttraff.cc/pify?keyword=symantec+dlp+12.+5+administration+guide'. This suggests a social engineering tactic to trick users into clicking the link, which then redirects to potentially harmful content. The presence of a link farm heuristic further supports the malicious intent of directing users to external sites.

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=symantec+dlp+12.+5+administration+guide In PDF document text
    • http://mupaboxas.reynoldseducationassociation.org/uploads/1/3/1/6/131607095/fuxulepewasebefomiwe.pdfIn PDF document text
    • http://files.river-city-wings.org/uploads/1/3/1/8/131856907/50048ec9e.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/1/0431/6463/1195/files/31540491572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5534/8888/files/4398236402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/dekezuganovol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/shoulder_dystocia_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6951/3632/files/zikotewaxaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/begefaborexom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6641/7571/files/13762459035.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 2

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_off000052b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B1 5940 bytes
SHA-256: 70a0bb9bd36fd3ced77bf87bd600a7554fb15c3d3ad7406a80cb74e96a7ccc28
font_01_sfnt_off000066d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D2 13488 bytes
SHA-256: d7e8f94efca15f7e43987e2888227265d7978dfa81e7f906c05bcb12f8cb60ea

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