Malicious PDF — malware analysis report

Static analysis result for SHA-256 92f1946e63723210…

MALICIOUS

PDF

67.3 KB Created: 2021-01-30 00:18:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3f7dea8f6199eb9f6ed16f973d1b4364 SHA-1: aa1e49428b6719a093bc526df35c459ddeb40076 SHA-256: 92f1946e63723210a89edb8ae5bf8ff82b0661de95af05e964f2033508908ef1
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=crew%20tube%20steel PDF link annotation
    • http://moitender.org/zikatalaxunofibugfkx.pdfIn PDF document text
    • https://vugifalufaduzo.weebly.com/uploads/1/3/4/8/134889855/wexegi.pdfIn PDF document text
    • http://copyright-securityx.com/fisewoperowijulewovr2oxo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450426/normal_5fd091369e73a.pdfIn PDF document text
    • https://mexupapomumag.weebly.com/uploads/1/3/0/7/130775103/napukulom-tefexeg-jibajofapi-tuzuvosazovo.pdfIn PDF document text
    • https://niritopep.weebly.com/uploads/1/3/4/6/134634222/1742832.pdfIn PDF document text
    • https://zikowajemaje.weebly.com/uploads/1/3/1/6/131607239/fedasufukirevi.pdfIn PDF document text
    • http://dodunagosukew.iblogger.org/2352893083.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372373/normal_600db71994f9f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://numivonef.rf.gd/28356628110.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/perelibobes.pdfIn PDF document text
    • http://bukarujinadir.epizy.com/bodybuilding_pics_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/cervical_screening_test_patient_information.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/35157568965.pdfIn PDF document text
    • http://vopawolug.epizy.com/arreglar_fotos_borrosas_android.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_off0000ce58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE58 4608 bytes
SHA-256: c59da6953fd52a1234f185820b8dd2fd345668fc50c080f3d8fe3767d8aed37e
font_01_sfnt_off0000de21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE21 10136 bytes
SHA-256: 50749047719a5d7b8f5818e2d0435c26e23cc8731bc062a0ac359c934a7e7e54