Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04ce9c6ac6f9515…

MALICIOUS

PDF

61.9 KB Created: 2020-12-24 21:09:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e1ae1ec7fc0e14bea986895a4266cf03 SHA-1: 39d79e57cc65de1d5f2c4494a53e740f27e8201e SHA-256: e04ce9c6ac6f951587f80b9aca988aecb112c1e154c347cb1dfd8bafbfcdea1f
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, https://gettraff.ru/aws?utm_term=driver+brt+juken+5, is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://gettraff.ru/aws?utm_term=driver+brt+juken+5 In PDF document text
    • https://cdn.sqhk.co/momewoziwoge/gjghifc/vehicle_number_plate_apply_online.pdfIn PDF document text
    • https://cdn.sqhk.co/resasenubori/ehgjdja/84506882360.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/77758dcc-56a5-4b2a-b8ad-b6ad47f6bddd/advanced_control_systems_textbook.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/loomis_sayles_company_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/spritpreise_sterreich_app_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e8bfb61-bf99-4c94-8adc-a124f1306992/romutivugiza.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/kimaxogoxap.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/zepatolafelenogigizab.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/49100362459.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/sheet_metal_thickness_galvanized.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75567b86-da34-46df-8d8c-1efced2bf2ce/pirure.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/gst_audit_report_format_icai.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/kofujagogezusidu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c803a68d-ab97-4bad-b981-e31783238535/28828230229.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_off0000b730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB730 4724 bytes
SHA-256: 0acd8477bfef3b62b7dbb56d6b1f5da34340c0fd0adafbe71fc2e2e6f777bc71
font_01_sfnt_off0000c76d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC76D 10420 bytes
SHA-256: df9c281b7b81e803a3778bc5889d08b02d82e69aa8dc8df5690d875882bdba04

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