Malicious PDF — malware analysis report

Static analysis result for SHA-256 34789ca97dc39514…

MALICIOUS

PDF

63.1 KB Created: 2020-11-21 23:53:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: e29fae861f1be465533c14e684ee2f65 SHA-1: 0995598c4e1da2e272dcb7025cbe4510f47e5ca6 SHA-256: 34789ca97dc395144d69eb1b9f7e54f5add20fe38821222d62e01af4cf4c0b74
164 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, suggesting it may be part of an SEO manipulation scheme or a link farm designed to distribute further malicious content. The presence of urgency language in the document body further supports a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffking.ru/aws?utm_term=buzzers+rhymes+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384640/normal_5fb4b7d784a3b.pdfIn PDF document text
    • https://rasetevipumi.weebly.com/uploads/1/3/4/7/134714044/af306b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382190/normal_5f8f12da6e383.pdfIn PDF document text
    • https://ditikoxariwifip.weebly.com/uploads/1/3/4/6/134636805/3581797.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386848/normal_5f9e8c67ac0bf.pdfIn PDF document text
    • https://zozufawagizawag.weebly.com/uploads/1/3/4/4/134454621/jogatez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392207/normal_5f9ce7d07fe6d.pdfIn PDF document text
    • https://wusinetowaje.weebly.com/uploads/1/3/4/4/134471696/tanolos.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418199/normal_5f9b39fd7f84b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3f68c04-0bf9-4bdc-8503-b15c8ffc376d/didowemifap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd336c5d-62c6-49bb-8243-7993f5595a44/68908685566.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea6c7bf6-23e3-41d3-b941-9826471ca986/mulazovugategimizo.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 8

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_off0000b7ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7AC 4964 bytes
SHA-256: 37a80b3f9e5afdda857d1eb96f99143843a5c7cad5477ecd0c890349d2cbaf48
font_01_sfnt_off0000c87a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC87A 11304 bytes
SHA-256: 22e4480bf400c9285384c3208264acea584e64693831d30a01b68c667b5854cf

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