Malicious PDF — malware analysis report

Static analysis result for SHA-256 177236d377d5d67e…

MALICIOUS

PDF

32.7 KB Created: 2020-08-02 23:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 98fc91649e4edf1eb193b3df86c886eb SHA-1: 1851046d972aae19359224111186bfee2552f645 SHA-256: 177236d377d5d67e9a6974005674839c09247915498b5ed6c40349c6c2d4a351
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to phish for user credentials or deliver further malware. The document body, though heavily obfuscated, contains the same redirector URL and a list of other URLs, suggesting a link farm or SEO poisoning attempt to drive traffic to malicious infrastructure. The ML classifier strongly indicates 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/pify?keyword=sky+trak+8042 In PDF document text
    • http://files.feedmeup.net/uploads/1/3/1/8/131857983/1858379.pdfIn PDF document text
    • http://files.ginterrupted.org/uploads/1/3/0/7/130738814/2091192.pdfIn PDF document text
    • http://files.thepinkcrusader.com/uploads/1/3/1/3/131380641/9355.pdfIn PDF document text
    • http://files.greenwoodbows.com/uploads/1/3/0/7/130739817/gepevajovilu-rukefatu-zopomifaduji.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/1/0432/5425/1670/files/sifudadipamozogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98455436519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1179/1253/files/noduxefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/waxigulazatep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/34618199587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/28071788240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1448/0287/files/4531226884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1688/6184/files/favoxumemagafebeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/39795754665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/50508155962.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 4

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_off0000438e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x438E 5296 bytes
SHA-256: 1ca420a221fe574adb3ff5d798abbfd5fc18a4708e7c0b11ce00f3ffb596adbd
font_01_sfnt_off000055ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55AE 9616 bytes
SHA-256: 0370d6202de439abb0d85c4976a695bfc241707e9602e83fe88ce108de828480

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