Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b57e9c15af90ce3…

MALICIOUS

PDF

42.9 KB Created: 2020-08-23 10:25:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e5d12e3dd5d202e1fdc06db9bcd50042 SHA-1: 9ef6fd86343805c2c5a8399f57f52fc13d311291 SHA-256: 3b57e9c15af90ce38b6060066cc3933a2b3c9af6789ffc4370fd0abd9973a243
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a malicious redirector link that is disguised as a study guide. The link leads to 'ttraff.cc', which is known malicious infrastructure. The document body also contains numerous links to PDFs hosted on various domains, suggesting a link farm for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample, limiting the analysis of its direct execution behavior.

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=best+asvab+study+guide+book In PDF document text
    • http://files.geocrimella.com/uploads/1/3/0/7/130776589/jokemaserawa_vigeduzigap_zipitariba_xewafekuzipo.pdfIn PDF document text
    • http://files.guilfordfoodbank.org/uploads/1/3/0/7/130739253/9228e3.pdfIn PDF document text
    • http://files.electricscooterrentalorlando.com/uploads/1/3/1/3/131398125/sabene.pdfIn PDF document text
    • http://gakonam.movingsoundscape.com/uploads/1/3/0/7/130738714/6438172.pdfIn PDF document text
    • http://files.breakalegman.com/uploads/1/3/1/4/131437413/bawupujewewo.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/1/0430/8277/6725/files/70794967597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5407/8871/files/vatepasurosuzaxanaburi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9130/1286/files/apdcl_advertisement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9657/0024/files/12241994648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/wapadopijenos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3021/6855/files/50046172263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8353/8331/files/40190242498.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/alhambra_guitar_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/jogozefemupumipopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1262/6344/files/fedepolameruxepa.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 5

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_off00006a3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3A 5280 bytes
SHA-256: 1a68637527423ed46d1c91eeaf15e44f088632c56dc277b552bbfea233798058
font_01_sfnt_off00007c4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4F 10068 bytes
SHA-256: 96cfb11cf0278237d6416279d9fc4f80ec692b0c5221a11dd58841d8057fd15e

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