Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be295adc1e8291b…

MALICIOUS

PDF

80.3 KB Created: 2021-04-06 02:45:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 451d13a0d8803d0ea0f41e65944520a3 SHA-1: 534e3388265337809b7cf0c12baf216b8635d271 SHA-256: 0be295adc1e8291b9b8be61259364b327011d493eff0c5ae168aafa8efc85ef1
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 0.9994

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=administraci%25C3%25B3n+de+medicamentos+v%25C3%25ADa+intravenosa+pdf PDF link annotation
    • http://damenetapep.iblogger.org/article_137_of_limitation_act.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/j9ljbBD/army_wallpaper_background.pdfIn PDF document text
    • http://kigapoxifaxixem.22web.org/gozisi.pdfIn PDF document text
    • http://simanamilorej.iblogger.org/raxonifule.pdfIn PDF document text
    • http://sodowetan.mywebcommunity.org/2020_space_odyssey_book.pdfIn PDF document text
    • http://muvetepogewa.22web.org/portugues_sem_fronteiras_3.pdfIn PDF document text
    • https://cdn.sqhk.co/gipagigo/g8HzWKM/zijonubadopowax.pdfIn PDF document text
    • http://zabatipudug.iblogger.org/airship_technology_book.pdfIn PDF document text
    • http://perinolaguzur.iblogger.org/verizon_business_service_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/wodaximewule/hbBhhjh/fuxuluziko.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://f64a1a0a-debf-4843-a838-a34c0cae0f4a.filesusr.com/ugd/89602e_15e72a030ad841e18787acc2a3e6c280.pdf?index=trueIn PDF document text
    • https://1e16da7b-5b4f-4122-a3c4-5c88c9d97cf7.filesusr.com/ugd/83f04e_51a27032e8bb4b4b828e4e47480054cc.pdf?index=trueIn PDF document text
    • http://nudoritane.atwebpages.com/argumentative_writing_topics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c3dc60a-a022-4268-9832-232838efd834/50898200088.pdfIn PDF document text
    • http://tamefizorala.epizy.com/52073186089.pdfIn PDF document text
    • http://damokoz.epizy.com/purple_cow_menu_sf.pdfIn PDF document text
    • https://ca483b97-61ac-4196-bca0-6b249c18eca9.filesusr.com/ugd/b27199_6342467b017947d48cf98a929a0842b8.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/941b09cb-b347-4dcf-9492-24f3a4ed58f6/wings_of_fire_dragon_to_human_years.pdfIn PDF document text
    • http://dijejewilibafux.onlinewebshop.net/a_brief_history_of_analytic_philosophy.pdfIn PDF document text
    • http://gesuposobevexo.rf.gd/komonug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6873d6e0-b3f2-4098-b689-c7e4ce85e514/lewisawurusi.pdfIn PDF document text
    • http://gupatevefojip.myartsonline.com/jifamafugo.pdfIn PDF document text
    • https://7be8961d-effb-4c78-a255-78c3c9f0be09.filesusr.com/ugd/3dd68e_569017a5c12940148c7ba817226c6309.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_off0000f708.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF708 5508 bytes
SHA-256: 639cf866ac438cd94e6142951c79ece50485b368d3ef015a2198482ae39b26ab
font_01_sfnt_off00010975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10975 12280 bytes
SHA-256: dc7619ed802a2c60a3b82f56d93fffd5752b9e4b103d668cf0c7c55471ef1b6c

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