Malicious PDF — malware analysis report

Static analysis result for SHA-256 e09c1f157fa5b127…

MALICIOUS

PDF

69.6 KB Created: 2020-12-19 20:03:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 1ffba76d7eabbc9352f89fbe00d71dea SHA-1: 8ed89e407f705605b30b04849a15f14f2282ad54 SHA-256: e09c1f157fa5b1275d2d535dfc1d6462c61ad7a814e0d67155bc1d4d511196b2
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'traffine.ru'. This URL is likely used to lure users to a malicious site. The ML classifier also flagged the PDF as malicious with a high score. While no scripts were extracted, the presence of a malicious URL strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8149

Heuristics 3

  • 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.
  • 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/aws?utm_term=bartleby+lo+scrivano+melville+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4478923/normal_5fb3f06d13e35.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379029/normal_5f98463ea6056.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449009/normal_5fc3e2950e101.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387709/normal_5fd068696d602.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/ae956c14-4be5-432d-afd5-3849131f357c/eleaf_istick_100w_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vufuzewasi/musiguxuxiwura.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/46238282894.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7b611abffab30daade22d/t/5fcfdf4c56ffb921e776bac2/1607458638382/luvedazujenilem.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5045d2e537a05ef237332/t/5fd5f3df89566e781f44449c/1607857119565/avoir_present_form.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/55722697792.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f41de48f-e248-4938-a6d9-46c93c168bd1/jemetini.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc69aba0b6b03258f5ce907/t/5fcb54051ef6d1662fed0a80/1607160838085/rekimutidakubegodutegavat.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/77586280330.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000febb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBB 5440 bytes
SHA-256: 4bf89cb184078302fb959c05649c8556f008f3065b1a2411e218611882476579

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