Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1769e137115993a…

MALICIOUS

PDF

42.3 KB Created: 2020-07-23 12:01:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6636a21f3d01615b9d5c3c32da1f46f2 SHA-1: c4917129ff49e1375b94233d86b875f2a2707352 SHA-256: f1769e137115993a6f646106a2854d66fa76f2cf3fe82af40ab4123d5b445780
194 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.com', are flagged as malicious. The document body, though heavily obfuscated, appears to be a lure related to a 'conference room meeting schedule template'. The primary attack vector involves redirecting the user to a series of malicious or link-farmed websites.

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=conference+room+meeting+schedule+template In PDF document text
    • http://files.udderlygorgeous.com/uploads/1/3/1/4/131437385/dee52d61.pdfIn PDF document text
    • http://files.danvalleyassociation.com/uploads/1/3/2/7/132741476/napufo-repisudarewu.pdfIn PDF document text
    • http://files.liv4ever.com/uploads/1/3/1/1/131164002/5119891.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/1/0434/6544/1430/files/18672680519.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5448/1056/files/20207829380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7578/8184/files/97183777341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/letowopebofowebizuwir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13879903487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8982/1847/files/muvezitovugasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1495/4908/files/dovekeruvasakuzub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/juxumadebamapetutorobegew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1522/4996/files/sapevuzibelulej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/70009475292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7381/4171/files/nebolilakulepatufesukuzo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9485/2252/files/towotapor.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_off00006816.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6816 5476 bytes
SHA-256: 5e70877434d3fe78800da6e2d6a58a790c25a04a57b0b25a8f084f6d2885eacf
font_01_sfnt_off00007a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A85 9744 bytes
SHA-256: 7b9a1a1453c760c2054cbbfcdce9f56e9f312a90e0338c148a66e266ebdf90ad

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