Malicious PDF — malware analysis report

Static analysis result for SHA-256 5975028c447bfdad…

MALICIOUS

PDF

85.5 KB Created: 2021-01-05 06:30:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 56fd4ebf9b3a83f4bb61f7e013a467ad SHA-1: 712c9385e6860b700c69ffe69258bdb9eb51e296 SHA-256: 5975028c447bfdada344e00b07d105fe86a03659fa8971691780185deb1da1c9
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 victims into a phishing scheme or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as a phishing trojan. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/aws?utm_term=lagardere+studios+annual+report In PDF document text
    • https://static.s123-cdn-static.com/uploads/4385620/normal_5fe4992aa9c3c.pdfIn PDF document text
    • https://cdn.sqhk.co/belumozobu/fNh8hfG/dejurisugibebo.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/hchhsI4/79971047990.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371787/normal_5f9ddcaa2b6f9.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/e2e21380-9ab7-4919-9cd8-35a3cddb768d/noco_genius_g3500_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c9b9e33-2184-4080-9983-eef32c614ed8/2006_toyota_corolla_repair_manual_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dbae9919-3849-444c-84f5-4fbe8fc32e14/zowaxupogiwavazus.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/42756813439.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/26928824243.pdfIn PDF document text
    • https://s3.amazonaws.com/pajukovuxetu/11982347227.pdfIn PDF document text
    • https://s3.amazonaws.com/zuses/total_annihilation_kingdoms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58349081-d9dc-4e26-b75b-c425ec8439a5/gajetanebegi.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/58218035278.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/mage_the_awakening_2ed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d727f025-678e-4113-8b69-6483197c12aa/kids_toys_that_start_with_s.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/8636149076.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAB7 5068 bytes
SHA-256: 1a6a27de8fe1f92915c6bcff503c13b592ef2565d2cee46de574e80536247ad3
font_01_sfnt_off00010c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C06 11740 bytes
SHA-256: 76713dc39be0a90e960a8dd9b85121690977a028c3fec7434f3ccc256dca2838
font_02_sfnt_off00013269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13269 16100 bytes
SHA-256: c3461001ca888bed6954970c14d027cf202d908e5c0b8e175f896e5a236b6086

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