Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd7c449b02ed4d03…

MALICIOUS

PDF

45.0 KB Created: 2020-08-13 02:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a0494e840d0ed28046661f16f2099e9 SHA-1: f776917c7203027a8bd23b289ccaaba1dda9d517 SHA-256: fd7c449b02ed4d030ff894201b7bcef12fa725dd9e3e92d51566527b4d923083
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with the heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifying a link to traff.ru as malicious. The heuristic PDF_SEO_LINK_FARM indicates a large number of external PDF links, suggesting a link farm designed to attract traffic or distribute content. The document body itself is largely obfuscated but contains the URL that triggered the malicious redirector heuristic. No scripts were extracted from this sample.

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=addressing+modes+of+8085+pdf In PDF document text
    • http://jejudezan.gibdevelopments.com/uploads/1/3/1/0/131070357/9235194.pdfIn PDF document text
    • http://files.keithsfishingtackle.com/uploads/1/3/1/4/131453253/7624832.pdfIn PDF document text
    • http://files.rehabcapetown.com/uploads/1/3/1/8/131871633/1561395.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/1/0432/2210/6271/files/symbolic_description_of_factorial_models_for_analysis_of_variance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/aldehyde_ketone_and_carboxylic_acid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4704/2728/files/51695528768.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5985/3977/files/zepebelafelojemabu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1959/0040/files/zuloguf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3097/files/wojomejuzinaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7798/2626/files/26373366752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6246/8503/files/anatomic_pathology_board_review_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4303/6053/files/vilibavefitoj.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 3

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_off00006fdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDB 5568 bytes
SHA-256: 5182f3da69518f1d9f3f911017719d085970408a0fc82be2c54d1bd6bea363bb
font_01_sfnt_off000082bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82BD 11092 bytes
SHA-256: 3e93182988097936f8972c047cd2f5b2f9136f50080c38780768da4aed2f4062

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