Malicious PDF — malware analysis report

Static analysis result for SHA-256 610952367cc5508b…

MALICIOUS

PDF

66.4 KB Created: 2020-12-17 07:24:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 06422650c4bbe22f2a004d9c62bc42fd SHA-1: d9235af9dc44d267a489c27446ecec46072982d7 SHA-256: 610952367cc5508b7eb54a8439b57f79db1f37d1c483688b04b36861a8e728eb
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://traffine.ru/aws?utm_term=lightroom+tutorial+video'. ClamAV also detected it as 'Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0'. The document body, though heavily obfuscated, contains text related to 'Lightroom tutorial video', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=lightroom+tutorial+video In PDF document text
    • https://wisamifogafize.weebly.com/uploads/1/3/4/5/134598642/fegeg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494160/normal_5fd31a0f738cb.pdfIn PDF document text
    • https://nokojuponamipi.weebly.com/uploads/1/3/4/8/134891784/lakipisudo-bawaf-veboroduban.pdfIn PDF document text
    • https://dujodorenenap.weebly.com/uploads/1/3/4/4/134488447/gorukesopud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484815/normal_5fc5edc0e645d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407804/normal_5f93c5a4310e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419206/normal_5fb608b1aa3d5.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/1ead2ebe-2ef5-45c0-8d0a-697c489d4469/zerotaxivozixefi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4cbc6bdb33045eedb2023/t/5fc98f72e262c015945a7463/1607044978947/download_apk_rec_screen_recorder_hd.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11858e5c7695ca99cc683/t/5fc29765eaf37e3b64f10ba6/1606588262175/ea_sports_cricket_game.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc527a3c6229360ecc88336/t/5fd622873ebe04163157cc3a/1607869064218/toyota_owners_manual_australia.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_off0000c8ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BA 5064 bytes
SHA-256: f658a97d60795774c37a3cc9e052427eed6d90136fe40399dfa22f84cdccd50e
font_01_sfnt_off0000d9ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9CE 10288 bytes
SHA-256: 1dbed7724ce541eb3d8695a803919652a7e71a3c9c78e4cc82a95d4498c1b696

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