Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e12e0bb6c132fc…

MALICIOUS

PDF

101.7 KB Created: 2021-04-15 02:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 79eabcce2a8de9edebc20a8d318174c4 SHA-1: b1e645e1b1f543f154c26413a2dd522a61fd9a15 SHA-256: 01e12e0bb6c132fc4a7586c0035c984dd4aec65843af12668dc5ba266b5d43db
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://jacksth.ru/strik?utm_term=how+do+i+apply+for+an+enhanced+driver%2527s+license PDF link annotation
    • https://cdn.sqhk.co/lasukojizix/6jjgk8H/jivojaji.pdfIn PDF document text
    • http://gijasigekafafuz.iblogger.org/one_page_business_plan_book.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/hhijvid/eric_church_new_song_2020_jenny.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/gjcjeTT/66068663083.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://b5b764bc-4fc6-48d7-9a4b-423a4d05f225.filesusr.com/ugd/3f2390_b1d7282d49cc464988341c59f1e26ba3.pdf?index=trueIn PDF document text
    • http://gurutimikef.epizy.com/dapoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d977f6a-3a67-4535-8166-678bba05a681/favunadizazekalukajoman.pdfIn PDF document text
    • http://bavubuseji.epizy.com/year_planner_template_2018_19.pdfIn PDF document text
    • https://s3.amazonaws.com/goviwigax/state_of_illinois_llc_annual_report.pdfIn PDF document text
    • https://0ac950e2-707a-4e47-8bf4-daface0ea9db.filesusr.com/ugd/356f11_3f3096594b6a49c084b22572355ff22d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7750c53-55b1-449c-8f9f-1d9a0bb01b72/73967962213.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/shaco_jungle_guide_s9.pdfIn PDF document text
    • http://dajasunekufa.epizy.com/bujegodexadebanalapezexu.pdfIn PDF document text
    • http://jozizirepimetel.rf.gd/descargar_gratis_el_rinoceronte_audiolibro.pdfIn PDF document text
    • https://a95edb9d-21e5-46e4-bb1b-b1fdf66a5dae.filesusr.com/ugd/09e34a_a0bbc83153cf4ab29db653d33421e447.pdf?index=trueIn PDF document text
    • http://livivisobozi.rf.gd/20594132456.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/do_you_lose_your_voice_with_coronavirus.pdfIn PDF document text
    • http://jusolasoxo.epizy.com/when_was_handwriting_analysis_first_used_in_forensics.pdfIn PDF document text
    • https://s3.amazonaws.com/woberiz/cough_suppressant_pill_form.pdfIn PDF document text
    • http://giruwixavitunav.epizy.com/18491647098.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_off00014d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D7E 5492 bytes
SHA-256: 69b3374bf64c73c5866eb9d123e7cd5eaaadd000c7b9615d0c53e15024251be1
font_01_sfnt_off0001604b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1604B 12340 bytes
SHA-256: ae5e4bfdf75768d079d993c4213f5035f7f009efa7396b1dc79eeb335c37bbd3

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