Malicious PDF — malware analysis report

Static analysis result for SHA-256 c11607544a0cbd2c…

MALICIOUS

PDF

42.4 KB Created: 2020-08-11 12:37:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea34ced25f36077f45a30c1072e33f78 SHA-1: 53c0eac6c10aa079c8b9f1057934a2231af53e8e SHA-256: c11607544a0cbd2cf1404ed1b42e3ec1615c1404be852b3a84b810bf10244489
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=company+presentation+pdf+template', which is also present in the heuristics. This indicates a phishing attempt to redirect users to malicious content. No scripts were extracted from this sample.

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=company+presentation+pdf+template In PDF document text
    • http://datijije.littlechapel.org/uploads/1/3/1/4/131407355/papinelok-losawiwade.pdfIn PDF document text
    • http://files.nicolecudzilophotography.com/uploads/1/3/1/4/131438203/129525c4d4.pdfIn PDF document text
    • http://files.nousdefionsgrp.com/uploads/1/3/0/7/130775934/272963.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/1/0430/7674/7413/files/83982547944.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9821/9420/files/96238015632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4353/6552/files/60113070056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kubogofire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/rikojevavewobexojavadeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/itbs_math_practice_test_grade_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/network_security_administrator_roles_and_responsibilities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3646/7623/files/18138712896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5730/8063/files/tiwajewuraza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/amortizacion_financiera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9183/5545/files/sorted_edges_algorithm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/case_brief_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/13336488851.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_off0000696e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x696E 5196 bytes
SHA-256: 932a5d8a0c99900c1952fd4376a13b5573685c3b9a94e58f933c06c0230ab638
font_01_sfnt_off00007af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF8 9936 bytes
SHA-256: ddc673c8e982b4b402a85480b96ad200ff06315f7ce055c3b3b59b397b3f0bb2

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