Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6fc62f11a95ebf9…

MALICIOUS

PDF

73.4 KB Created: 2020-12-22 23:44:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e7cae0b889b265c0178255d0bef05395 SHA-1: 94b785750d9b788211fc1d02d0e68d9e062af139 SHA-256: d6fc62f11a95ebf9023d56543643097b16a321466e132b0191d564d8ccaca30f
202 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically `https://gettraff.ru/strik?utm_term=paypal+customer+service+contact+number+uk`. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, contains keywords related to PayPal customer service, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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.
  • 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
  • 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://gettraff.ru/strik?utm_term=paypal+customer+service+contact+number+uk In PDF document text
    • https://xujuwoxevosu.weebly.com/uploads/1/3/4/8/134896670/nemisuwetuta.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416514/normal_5fa837fc3376a.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/85f5a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383586/normal_5fbe2ec564c1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379970/normal_5fa14b1684451.pdfIn PDF document text
    • https://xovatikawe.weebly.com/uploads/1/3/4/7/134726086/musutixitavik_ganiwe_kanuraza.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389582/normal_5f9075fe47855.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/fadadedezeker/37519411872.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/lexus_club_box_texas_rangers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e85027a199023ab5619d/t/5fcddbbb2fa8bc6bcd0b4da8/1607326652924/84044632895.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6b1d9403f5353fdbe0a77/t/5fd6212c164d0f203c7322be/1607868716328/lyx_beamer_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc112c117e7202640eb3140/t/5fc4e5443570fb44d19c6e8b/1606739268956/krav_maga_manual.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD431 5328 bytes
SHA-256: 5884e8f7369f80429d602d737f6fb3cf179e050940cc4158db10052f635074db
font_01_sfnt_off0000e638.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE638 10660 bytes
SHA-256: cbb5b8d9ccef41f42c41bbef625218c2d1df9e6fe96257711f93b67cabbe31a0
font_02_sfnt_off00010a7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A7D 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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