Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9594a96eebae1ad…

MALICIOUS

PDF

71.4 KB Created: 2020-12-23 04:47:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 3791ae086e1bd3924dec71dc66c5b8a0 SHA-1: d98f86c419900cdeaedb02aff620dc101c18621b SHA-256: c9594a96eebae1ad30fe5cef62104986095c5450e11eb920ff035ad38c5e0a35
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 'traffine.ru'. This URL is likely used to lure users to a malicious site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the presence of a malicious URL is sufficient to infer 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://traffine.ru/123?utm_term=sportcraft+unicorn+electronic+dartboard+manual In 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/b6260685-a982-4f2c-8b8e-1a2100e7e9a5/10383980131.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8608859-35c0-43ca-9714-8e02e9d36bae/fishing_guide_albion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e178384-40b0-452d-9e31-1b7f46518fc3/18428313523.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8712c375-b3ea-452a-ac4b-b71ee3379d16/10911502325.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc3c655d26ff1194f85c811/t/5fc7ad8eefc65c5b7a4b333f/1606921619291/16154878102.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb0a23f2-19c2-46a4-99f1-630b5129b1a9/5443926299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/655caa32-c474-40c0-bf36-e9a5a2a3ec61/62887861290.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe148e922d7684816731abf/t/5fe17adfc5e8614de8baecb9/1608612576626/candyman_horror_movie.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13f7d5687f52b6b837984/t/5fc53f794e98326c02bcd9e9/1606762362284/xifiwogawolobu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdcaa7c5e71df64d6bdd8f6/t/5fdcf8e11223dd37365ad069/1608317154725/ibm_java_8_jdk.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ccfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCFC 2880 bytes
SHA-256: 5f03d2c6bc08d28d18892b3fd5153044a2fff6aad81dd629dfd07635bf6cf50e
font_01_sfnt_off0000d739.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD739 5364 bytes
SHA-256: ddef7d1cccf3bcddb8c3060029d03385906c0178999f1fe89a4bce6d61efcffc
font_02_sfnt_off0000e962.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE962 11424 bytes
SHA-256: 7a4d54af7773bfbca522c5a9c09bd46b8f1a64434ecae9237671f662a18ac18f

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