Malicious PDF — malware analysis report

Static analysis result for SHA-256 317a715414b1bb66…

MALICIOUS

PDF

67.5 KB Created: 2020-12-22 14:55:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 8393c65ddb364fad0e47dc9da68e8eff SHA-1: 7af629f2b42a6e34f9f602dd91cead6a897668f1 SHA-256: 317a715414b1bb66abe3fc1ed01d19e63445db998dadade03e6c9f682ecc1be0
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/aws?utm_term=ariens+lawn+tractor+manual'. This indicates the document's primary purpose is to redirect users to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL within the document body strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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.
  • 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://traffmen.ru/aws?utm_term=ariens+lawn+tractor+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387825/normal_5fa48694ab58a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424985/normal_5fdaf79c3d8fe.pdfIn PDF document text
    • https://pepisukuwen.weebly.com/uploads/1/3/1/6/131606293/ruvamoxujineb.pdfIn PDF document text
    • https://wupizesave.weebly.com/uploads/1/3/4/5/134581048/wuvani_lolefajonotavu_vegobesilasiwam.pdfIn PDF document text
    • https://mudobimug.weebly.com/uploads/1/3/4/8/134853100/8cfd550b67cb7a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc67bdfa8793968642e8bb7/t/5fcf9a5d7c36362741b66dd8/1607440990958/positive_thinking_harvard_business_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15805e03-862c-4506-a2cf-c8a15ab0292c/rexuti.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe48142dd96f5918bb50fd/1606305814293/68326819384.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8c4492c-85df-40f3-bb92-e720c3e2ff38/mavikuzakuvegufedej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcc226ec-c9ce-4ea6-8159-960f3cb92373/19809521771.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC60 5024 bytes
SHA-256: 820ccbd595a90e9689b75f68afe67d3612ead899b5d50bfe2df32591fa08f930
font_01_sfnt_off0000dd6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6F 10596 bytes
SHA-256: 439873b8b9fbc25f0ee9d539a4085a39f45d9bdbfa6dc187b85bc6bc4fc8ab85

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