Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1f4f68512c10e33…

MALICIOUS

PDF

74.5 KB Created: 2021-04-13 13:55:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 11e2daa7f44924a5e306fa1f454af99d SHA-1: bddeb2247358663ea99f002c1cb014ff85299b22 SHA-256: c1f4f68512c10e336a2cb3b7004ba8c5ff0f7fbe89245a249ef4e82e30818f16
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/strik?utm_term=how+to+add+an+antenna+to+dish+network PDF link annotation
    • http://lomigakorak.getenjoyment.net/49954398345.pdfIn PDF document text
    • https://lononefebodamu.weebly.com/uploads/1/3/2/6/132696526/vuzikasojiz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462976/normal_6031719878c59.pdfIn PDF document text
    • http://totalcreditreport.info/define_propositional_knowledge_tokfgkp2.pdfIn PDF document text
    • http://levelupguild.com/finupecelt0.pdfIn PDF document text
    • https://sufunisukexe.weebly.com/uploads/1/3/1/3/131381546/rezoz-nakewojota-lojorokifuwum-rirugega.pdfIn PDF document text
    • https://gemunokixelu.weebly.com/uploads/1/3/6/0/136095878/1198910.pdfIn PDF document text
    • http://letinebab.mywebcommunity.org/potewojuxugimoderubev.pdfIn PDF document text
    • https://saduzoxizujakef.weebly.com/uploads/1/3/1/0/131071125/6005202.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382782/normal_602989d1ac828.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416921/normal_601529bc9e629.pdfIn PDF document text
    • http://kakolamilasaru.medianewsonline.com/aminoven_infant_10.pdfIn PDF document text
    • http://juponuziwotaga.mywebcommunity.org/geekvape_aegis_solo_manual.pdfIn PDF document text
    • https://bufuxilanu.weebly.com/uploads/1/3/4/4/134402831/5999805117.pdfIn PDF document text
    • http://boforotaje.mywebcommunity.org/radical_forgiveness_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://likasuretaw.onlinewebshop.net/34376519190.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_off0000e782.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE782 4996 bytes
SHA-256: f9d1cf9360e066f6ccdb3ab1992e145e0a6c392668432df829f85959d4f7cd4a
font_01_sfnt_off0000f888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF888 10484 bytes
SHA-256: 7f5b68975a5312e49bd950d0bbcfb10b28931fc0eb027da1b22f2cc20c2ad58a