Malicious PDF — malware analysis report

Static analysis result for SHA-256 25214bcf6ca0455f…

MALICIOUS

PDF

70.2 KB Created: 2021-03-01 02:05:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 45198f35012e748e204d8e34f4f93d49 SHA-1: 8bdbf505dc9718b816cb29cb12dcac4fa1bf0c4b SHA-256: 25214bcf6ca0455f6d17fe436867e04ec7c094b8e2fdb53ca978b467e38d4f59
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://lozipotod.ru/wix?keyword=swords+and+sandals+1+unblocked+hacked PDF link annotation
    • https://nulowuze.weebly.com/uploads/1/3/4/6/134614321/8331048.pdfIn PDF document text
    • https://xibabajawaxas.weebly.com/uploads/1/3/1/3/131398380/6426364.pdfIn PDF document text
    • https://vivuwugo.weebly.com/uploads/1/3/0/9/130968913/sukubulakadugu-riparupezixevi-mutorunev.pdfIn PDF document text
    • https://taxudomajifi.weebly.com/uploads/1/3/4/1/134108655/ponopomabulopemaboga.pdfIn PDF document text
    • https://nugivukowunel.weebly.com/uploads/1/3/4/0/134041243/1610372.pdfIn PDF document text
    • https://luloludelipirad.weebly.com/uploads/1/3/5/3/135318650/tuxiluja.pdfIn PDF document text
    • http://degelumokufipim.22web.org/93888326531.pdfIn PDF document text
    • http://gafujovinotu.22web.org/mativovemogu.pdfIn PDF document text
    • https://pepexelizuruxu.weebly.com/uploads/1/3/4/6/134656498/puwazopepaxuwadi.pdfIn PDF document text
    • https://bujipivew.weebly.com/uploads/1/3/4/1/134131373/zupaduxodotodof-milonek-bolunir-kugimuroga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://didoruvevesipug.rf.gd/tutimavibipirarukasijopeb.pdfIn PDF document text
    • http://fasokefukolu.epizy.com/vorubilal.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/call_recording_app_2018_jio_phone.pdfIn PDF document text
    • http://dofurorumilu.epizy.com/peronirizijimaruj.pdfIn PDF document text
    • http://dekifovep.epizy.com/materi_akuntansi_sebagai_sistem_informasi.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/gamebirufaludonuwat.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/lusoxabadi.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_off0000d6c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6C4 5476 bytes
SHA-256: f6b15637c5686d8ed5765127492259ddb7d0e6ef90c143645a441e8e002d541d
font_01_sfnt_off0000e971.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE971 10136 bytes
SHA-256: 0c8feb512627251519655edbaede3486f7a8696bed294c7388d3ee9b91f9c9e9

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