Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fe5e6899a3fa08d…

MALICIOUS

PDF

57.9 KB Created: 2020-08-08 19:31:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7127cc2173dd2f0099d2c24691917010 SHA-1: c6419b3424833649464c3e42c11220354f34a68b SHA-256: 5fe5e6899a3fa08d061c769732cafb072aeabca566b97331d4fe4de19d5d89d2
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary lure appears to be related to 'microbiology laboratory tests', directing users to the ttraff.com domain. The ML classifier strongly indicates maliciousness, and the presence of numerous external links suggests a phishing or scam attempt.

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.com/pify?keyword=microbiology+laboratory+tests+pdf In PDF document text
    • http://files.ksdanceacademy.com/uploads/1/3/1/4/131437119/fitadazun-nokemepo.pdfIn PDF document text
    • http://files.erasmusbyprimerasupport.com/uploads/1/3/0/7/130739081/62eb6b401d.pdfIn PDF document text
    • http://files.lupulrealty.com/uploads/1/3/0/8/130814926/3329113.pdfIn PDF document text
    • http://files.worldpairsangling.com/uploads/1/3/1/4/131453902/9d19ede6.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/1/0439/7367/3118/files/54812755864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8358/6977/files/61157746290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0260/0356/files/lakupuzagivitofovipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/80136089463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/kilomit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9588/2918/files/laporan_pendahuluan_hernia_inguinal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7373/1741/files/zuzexovek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9113/0536/files/12868298665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7993/3862/files/13191626996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4952/5156/files/xeturozavawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3346/files/after_effects_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/88075317933.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a5ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5BA 5568 bytes
SHA-256: b71aa59a2894b4e128cd5eed598fbf8b767bc54dbae8e1ca38f37956be4ff82a
font_01_sfnt_off0000b8c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8C9 9852 bytes
SHA-256: 19b6082e1f0bc45fc34489b67b79e78488015bbecf9d28db8dea9aa148f972b6

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