Malicious PDF — malware analysis report

Static analysis result for SHA-256 c00ac23017e417f2…

MALICIOUS

PDF

80.8 KB Created: 2021-03-16 15:32:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 578a595b6a7fa64f6e5bf46133d1e80f SHA-1: 229e46b6cabef86770e3e52ac49b5421868dc92f SHA-256: c00ac23017e417f26e21d7954c581c95ff78844366f0f18680e04d9e4a00c458
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 multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan' and an ML classifier indicating maliciousness. The document body and embedded URLs suggest a lure related to search queries, directing users to a network of disposable domains and link farms. The presence of numerous external URIs, many hosted on disposable or free domains, strongly indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/strik?utm_term=what+battery+do+g+shocks+use PDF link annotation
    • http://fogazino.iblogger.org/sotekilidaduriganab.pdfIn PDF document text
    • https://wededizopi.weebly.com/uploads/1/3/3/9/133986349/7373827.pdfIn PDF document text
    • http://martakkord.ru/totarez5krgv.pdfIn PDF document text
    • http://xejeboge.22web.org/tdsskiller._exe_bleeping_computer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465555/normal_5fec2eadbe189.pdfIn PDF document text
    • http://qwertyujg.xyz/new_breast_cancer_staging_guidelines_2018drh1h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453335/normal_60150edcc2064.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365613/normal_5fddfb3d805ad.pdfIn PDF document text
    • https://mafugefowodofo.weebly.com/uploads/1/3/1/3/131378796/ee713ebd9e.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/fff9f80cf21c3d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370286/normal_5fcc3f1f1d65f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371553/normal_5ff9e7cbce822.pdfIn PDF document text
    • http://mgacessoria.online/writing_a_news_report_sampleijd0q.pdfIn PDF document text
    • http://rasprodavaika.ru/2384417297580gax.pdfIn PDF document text
    • http://theharaka.online/visujised65qd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zuzofigub.rf.gd/64259281083.pdfIn PDF document text
    • http://pixotet.epizy.com/70322358218.pdfIn PDF document text
    • http://xefowipiv.rf.gd/59704137822.pdfIn PDF document text
    • https://97d49ff2-d914-4ae4-8ac8-5e5cf5f77cad.filesusr.com/ugd/6350c7_911b83795ca84bedab42b536b6e97234.pdf?index=trueIn PDF document text
    • http://pivirujifija.epizy.com/2006_chevy_trailblazer_ss_manual.pdfIn PDF document text
    • https://efa91360-7c21-416c-9d60-3189e0beb381.filesusr.com/ugd/42ffc7_c7cc69dc93ad4ceeb6a392a56b7c61c1.pdf?index=trueIn 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_off0000fdfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFE 5488 bytes
SHA-256: 61214d31d6890f2e68ab6dc679d2e4f9e965269fd77910013694bc6af3b455c1
font_01_sfnt_off000110b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110B7 10896 bytes
SHA-256: a5f47dd200c47f343b41232ac9d9555c382378e46dbaa6284a406c6c9d536f21

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