Malicious PDF — malware analysis report

Static analysis result for SHA-256 297aa1aa3819f2ce…

MALICIOUS

PDF

73.1 KB Created: 2021-02-16 16:14:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f88a1426e218f41de1009fe4d064a19f SHA-1: 4fcf3e968504d929f421be6559affe8c49c171a2 SHA-256: 297aa1aa3819f2ce12981442c6935e90a348c960414b54f3901d467545e40848
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://seumenha.ru/wb?keyword=why%20is%20the%20red%20light%20blinking%20on%20my%20nes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4495686/normal_5fe8178034de4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412394/normal_6022dbbb890ad.pdfIn PDF document text
    • https://musokuvezuref.weebly.com/uploads/1/3/1/8/131871850/zevanigovajad-zaxujik-pewidebajosipon.pdfIn PDF document text
    • http://jorolog.22web.org/moral_meaning_yahoo_answers.pdfIn PDF document text
    • https://degiviwab.weebly.com/uploads/1/3/2/6/132680905/0f0f40cbf.pdfIn PDF document text
    • https://tuwopabawebude.weebly.com/uploads/1/3/1/3/131382790/repitenanutu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415754/normal_6026dd8aa6db2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366364/normal_5ff0edad2a9bc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393345/normal_5ffc65133875a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384819/normal_5fc948f399eb7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463785/normal_5fe8b2b3473e1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bepinutarefe.rf.gd/sajebajej.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/pvc_foam_sheet_suppliers_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/78083525481.pdfIn PDF document text
    • http://mowesedapi.epizy.com/new_punjabi_song_2019_bestwap.pdfIn PDF document text
    • http://vosesuweg.epizy.com/rivals_for_catan_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/narugegesonefiwubefof.pdfIn PDF document text
    • http://wazuvolixevafo.rf.gd/how_much_do_daycare_workers_make_an_hour.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_off0000e18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE18D 5348 bytes
SHA-256: 09272224a6296df9748a1d50b442682374ba22bc0d4fcd926a6c0857a0c77ff9
font_01_sfnt_off0000f3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A8 10440 bytes
SHA-256: efdca9e1c4ac73efc972d8b0f5e0bf3f38317f56e660fa3ac763fe6e4dc4782b