Malicious PDF — malware analysis report

Static analysis result for SHA-256 6897d1c57519f987…

MALICIOUS

PDF

60.8 KB Created: 2020-09-09 21:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 002f2d5d103d91d75a7d1998194a9c21 SHA-1: e8c5140e48db0f7b82772c2be03732d00f6f3539 SHA-256: 6897d1c57519f9871b2a7461c9c1908b2c0cba63652321ce180ecb0582ab72fd
194 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector domains, including a critical finding of a malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL https://ttraff.com/wb?keyword=definicion%20de%20factores%20sociodemograficos%20pdf, suggesting a lure to disguise malicious activity. The ML classifier also strongly indicated maliciousness.

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/wb?keyword=definicion%20de%20factores%20sociodemograficos%20pdf In PDF document text
    • http://files.southgeorgiaelitecheer.com/uploads/1/3/1/3/131380177/lijoretos-kovafadaxa.pdfIn PDF document text
    • http://files.cebhalifax.com/uploads/1/3/0/7/130740490/6934934.pdfIn PDF document text
    • http://wuzuk.frenchbyemilie.com/uploads/1/3/0/9/130969761/1144118.pdfIn PDF document text
    • http://files.trentsoyster.com/uploads/1/3/1/3/131381961/ruxiwido.pdfIn PDF document text
    • http://zutedalu.ngfmeetings.com/uploads/1/3/1/3/131383297/sufukegiwevupiroje.pdfIn PDF document text
    • http://files.ilovemyminischnauzer.com/uploads/1/3/0/7/130738889/nomekuxojinixasu.pdfIn PDF document text
    • http://gusupix.eco-logical-resolutions.com/uploads/1/3/2/7/132740405/4873002.pdfIn PDF document text
    • http://files.azmendinglives.com/uploads/1/3/1/3/131398487/folijepuzenixusi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d875d13cd1e6451d9ac5728e0dbfcc71.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e1d12c_a07d4cce056d42719d89b3edf9dc1fa4.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/185c00_50a62744ce58402cb09dbcf0086b749f.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3159/3113/files/jorejijeti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/anonytun_black_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6473/7433/files/561286352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/15047728147.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a61e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA61E 5440 bytes
SHA-256: cf31f6c381ee854c335c852455754525ffa93978e184b9dcd3b8a2efd7a60949
font_01_sfnt_off0000b897.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB897 13940 bytes
SHA-256: 8f8d7477496f4f9f92f5611114490dfeda88a8e8ea90738a29ceb857e9a7816f