Malicious PDF — malware analysis report

Static analysis result for SHA-256 08b69c65dd5a9305…

MALICIOUS

PDF

79.2 KB Created: 2021-02-15 17:58:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a7415333e5415a5e19388199851f41c2 SHA-1: 5260a8636d9e41725f5f8b2a213312573c46eb7c SHA-256: 08b69c65dd5a93052ab10fe78b7e42c3e2e07e584ad0acadf727de6a5ee0abf2
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://jottigo.ru/wb?keyword=how%20much%20does%20it%20cost%20to%20go%20to%20school%20for%20eyelash%20extensions PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4371495/normal_5fc62d52915e2.pdfIn PDF document text
    • http://remastacer.com/notification_firebase_android_studiox3xet.pdfIn PDF document text
    • http://openlait.pro/free_sheet_music_making_websitesixb39.pdfIn PDF document text
    • http://katermore.ru/wolisevry2q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446016/normal_5fcef9ec95269.pdfIn PDF document text
    • http://arenda-comp.space/transformers_autobot_stronghold_tower_defensedvyhh.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462368/normal_5fcaa080d3546.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448103/normal_6018c3c0eb1de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402933/normal_601579e6e2dbc.pdfIn PDF document text
    • https://safamitiwifiro.weebly.com/uploads/1/3/0/7/130739579/82066f28.pdfIn PDF document text
    • https://petirinupupa.weebly.com/uploads/1/3/1/4/131438611/9016849.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462037/normal_600507d892a0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452612/normal_5fda5d4e4b13b.pdfIn PDF document text
    • http://antinomi.design/346755769834gepe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475985/normal_5ff2944041f17.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481540/normal_5fe82ada8a6e8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://moxododokojuke.epizy.com/acc_aha_cholesterol_guidelines_2018_calculator.pdfIn PDF document text
    • http://lapakak.rf.gd/jaderidujukabatuk.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_off0000f86f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF86F 5656 bytes
SHA-256: 17d75edbe9234ad49aba18b43063221fb9a40e1a551675d930552a21f2d0a2b4
font_01_sfnt_off00010b9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B9F 10436 bytes
SHA-256: c607909ec496540219266654c4844b2b054fcfb565d3cf994baf74827d624d07