Malicious PDF — malware analysis report

Static analysis result for SHA-256 663a66b745e1059f…

MALICIOUS

PDF

71.9 KB Created: 2021-02-25 07:16:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c4768047955717cd32717e6628790eaa SHA-1: a2e1b2315fe798503eaa4a5ff5a371f17eb8d874 SHA-256: 663a66b745e1059fad655a1eeb3c285139b711be04d834a72b0089f9d8e8709a
126 Risk Score

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://maypoin.ru/award?keyword=how+to+use+crane+drop+humidifier PDF link annotation
    • http://wijetaz.mypressonline.com/d_link_dap_1522_login.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481994/normal_6015cdaadc078.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/asp.net_mvc_tutorial_w3schools.pdfIn PDF document text
    • https://fejuzewe.weebly.com/uploads/1/3/4/8/134883228/xepaputadejek.pdfIn PDF document text
    • https://watilokid.weebly.com/uploads/1/3/1/8/131856522/waxubilubanipas-finizufadetiliz-xidar.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/how_to_do_apa_reference_format.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/gavexafigemixiwu.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/16374307671.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391317/normal_5ffd38d610834.pdfIn PDF document text
    • http://peromopativej.mypressonline.com/salvation_army_christmas_assistance_frederick_md.pdfIn PDF document text
    • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/5725904.pdfIn PDF document text
    • http://jalazekesofijot.medianewsonline.com/zezipatitosugagezotinuni.pdfIn PDF document text
    • https://zinelenugep.weebly.com/uploads/1/3/1/6/131636957/disola-vojakixumimavim.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lamupilabixekuw.epizy.com/calisto_620_datasheet.pdfIn PDF document text
    • http://jobifizokugo.rf.gd/blackfathom_deeps_quests_guide.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/how_do_i_factory_reset_my_portal.pdfIn PDF document text
    • http://pujumek.myartsonline.com/citizen_eco_drive_movement_list.pdfIn PDF document text
    • http://musovulazapa.epizy.com/gcf_and_lcm_practice_worksheet_answer_key.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_off0000dd43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD43 5416 bytes
SHA-256: b360284c42886299d9d4b5624a36664dbff44117baf782be4d7a49d09d393155
font_01_sfnt_off0000ef96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF96 10064 bytes
SHA-256: e8935e7e6cccb43cf138bd7af182b5511e95145ce407c0b88519ddbd79031cce