Malicious PDF — malware analysis report

Static analysis result for SHA-256 9faa33156f3c147e…

MALICIOUS

PDF

65.6 KB Created: 2021-02-14 21:44:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0c93d5d05f3761e791430e595b898eab SHA-1: 5a8648e3e878bbaf4d82b877cf9588d7d2173cfc SHA-256: 9faa33156f3c147e76c1dada2ad2ad0f5ae4bef35a65171bcf9fd79e81077da1
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://maypoin.ru/123?utm_term=fred+and+george+weasley+wands PDF link annotation
    • https://cdn.sqhk.co/xutazazo/igiejhG/t_mobile_65_plans_for_2_lines.pdfIn PDF document text
    • https://bosuditibopo.weebly.com/uploads/1/3/2/7/132740628/jimuwazo.pdfIn PDF document text
    • https://cdn.sqhk.co/jomububorava/6zk43xs/bivuwoxisovedirotevixe.pdfIn PDF document text
    • https://pefibiwurabamiz.weebly.com/uploads/1/3/0/8/130874510/3231817.pdfIn PDF document text
    • https://cdn.sqhk.co/nobukomorur/iRDoidd/art_therapy_masters_pay.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/nNigQfA/bigbang_bang_bang_bang_song_meaning.pdfIn PDF document text
    • https://solusolifodijal.weebly.com/uploads/1/3/4/4/134433047/9890879.pdfIn PDF document text
    • https://nojemalof.weebly.com/uploads/1/3/0/8/130873850/eda9994c183b698.pdfIn PDF document text
    • https://mudabomem.weebly.com/uploads/1/3/0/9/130969182/geruzakaf.pdfIn PDF document text
    • http://xenotobewaf.22web.org/beyerdynamic_mmx_300_manual.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lukepepe/insects_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezodepugov/21535775422.pdfIn PDF document text
    • http://verepuremi.rf.gd/8204542087.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/ratobezuveva.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/25600315311.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/49131960034.pdfIn PDF document text
    • http://zekarevuwo.epizy.com/gomaz.pdfIn PDF document text
    • http://dimaninerif.rf.gd/penatoworekiw.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_off0000c271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC271 5144 bytes
SHA-256: 201177742d81b07e9bb1d2b6cbbfd4a6cfeb6b822ca36fce32752b9474c424d0
font_01_sfnt_off0000d418.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD418 10916 bytes
SHA-256: 0041037672e93d9470818c8615102e9785f1191b4a0437741cb20595df189f1a