Malicious PDF — malware analysis report

Static analysis result for SHA-256 c80c1f465e474c80…

MALICIOUS

PDF

80.2 KB Created: 2021-03-29 12:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: daa92c82d93fe2fc9c6721aa58adbc01 SHA-1: ca0637ef8e9cd554be8313b82f09df4115c49da4 SHA-256: c80c1f465e474c80551acc83f92bb7b9b20c6463863e94c234f97ceb16686b87
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URIs, many pointing to disposable domains, indicating a link farm designed to redirect users to potentially harmful content. The presence of multiple external URIs suggests an attempt to lead the user to phishing sites or download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/123?utm_term=akcent+new+hd+video+songs+free PDF link annotation
    • http://portkamesto.site/54644473851ycn0o.pdfIn PDF document text
    • http://japancar-sib.ru/birthday_card_for_best_friend9wo14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477162/normal_6022c2893eb42.pdfIn PDF document text
    • http://numitoredewatam.iblogger.org/fukobapuwusotule.pdfIn PDF document text
    • http://meetraisins.club/motamajedogutexorisadegc06em.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471996/normal_5fdbc9df8c28b.pdfIn PDF document text
    • http://meetsol.xyz/35277778034duvn5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375889/normal_6047d5aba36fe.pdfIn PDF document text
    • http://usejus.club/gipugixakegutelym29.pdfIn PDF document text
    • http://uniques.space/metformin_tablets_ip_500mg_uses_in_tamildkd4a.pdfIn PDF document text
    • http://deutschebank-meine.com/word_postage_label_template561ci.pdfIn PDF document text
    • http://supesanav.iblogger.org/sports_physiotherapy_assessment_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425255/normal_6051b0bd6e9e4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kiwozoma.epizy.com/74925418754.pdfIn PDF document text
    • http://mefabimunusor.epizy.com/60000184439.pdfIn PDF document text
    • https://db6d201d-bdff-4648-9982-d9cfaac7639e.filesusr.com/ugd/98857b_0b643f09511d4881b2e437abc822cc3d.pdf?index=trueIn PDF document text
    • http://tunufefenus.rf.gd/67197012214.pdfIn PDF document text
    • https://ef5e9b3f-1a8e-4c79-9b60-34b8f8133c96.filesusr.com/ugd/18574e_53d39d03ecbc40ad9b4ac2054884e223.pdf?index=trueIn PDF document text
    • http://duxuramubot.epizy.com/jaguda.pdfIn PDF document text
    • http://rubabup.epizy.com/bahubali_2_tamil_movie_720p.pdfIn PDF document text
    • https://f78a7b13-e75c-4ddc-9f3c-03cd83736f6c.filesusr.com/ugd/90c53f_2987a171e07b41679040f4157d5556a2.pdf?index=trueIn PDF document text
    • http://paruwegugu.rf.gd/sagulalozofaludebegefir.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC66 5248 bytes
SHA-256: 28daa97211a6ef2408b5627a93ced4609a8b66a2ff63cd0ff05bbddcbe0ddf32
font_01_sfnt_off00010e5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5B 10932 bytes
SHA-256: efec92396cab52fd39654f675d1b888b843f3c8950706dacf4858b356846fff4

Open this report in the interactive analyzer, or submit your own file for analysis.