Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed207da93632652b…

MALICIOUS

PDF

71.0 KB Created: 2020-11-30 07:18:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1dd04ae339c143ccc56621655373be79 SHA-1: 28c3c756075943b3b1f1365fe8b42ac68febcd39 SHA-256: ed207da93632652b5736ca7dd1c914188e8febc65ae7b8b2887a0b3159304d78
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a significant number of external links, identified as a PDF SEO link farm. The primary URL, 'https://trafftec.ru/strik?utm_term=arroyo+del+oso+tennis+courts', suggests a malicious intent to redirect users to potentially harmful content or phishing sites. While no scripts were explicitly extracted, the heuristic firings and the nature of the link farm strongly indicate a malicious document, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/strik?utm_term=arroyo+del+oso+tennis+courts PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367642/normal_5f87489021e26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369907/normal_5f8df74f4b3d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455374/normal_5fa7419522bc8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453129/normal_5fbc6da2d1c48.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470692/normal_5fb99fbe5bfc2.pdfIn PDF document text
    • https://jepopiravu.weebly.com/uploads/1/3/4/1/134131497/febuseni-dutalenuwo-kuwemadigivoxuf-bejapi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420910/normal_5fa8301fc5180.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/mergers_and_acquisitions_valuation_methods.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/73251824199.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/xuwixomeme.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/bikoxojobip.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/16756269626.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC353 4816 bytes
SHA-256: 9a8740b0cddad34b02195c5850f7d504ab195a43d31e00d1c1c8353c0d5cfedc
font_01_sfnt_off0000d3cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3CF 11164 bytes
SHA-256: ad32f7b8fe35311b7b34a4bf0405493a6b7beeb472f8041b6f2b339a17f2e798
font_02_sfnt_off0000fa20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA20 16076 bytes
SHA-256: be99eec5252a5aa651cecf07e99d86bba1df1129d84d8f44bf692ed59b17da34

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