Malicious PDF — malware analysis report

Static analysis result for SHA-256 72485a253072250d…

MALICIOUS

PDF

86.3 KB Created: 2021-04-17 23:54:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 371b5cd93d1a61b67b8ee25d4fefab19 SHA-1: 712e6fd46a21bab5527203049927f06c4971fecf SHA-256: 72485a253072250d6b17dd9db530bd0e8f10a4f740363926076cfa993343c58b
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=how+to+send+a+fax+on+epson+wf-3640 In PDF document text
    • https://dorixakogika.weebly.com/uploads/1/3/6/0/136051108/jinozeletajelir.pdfIn PDF document text
    • http://womenit.space/cd_booklet_photoshop_template9q5fo.pdfIn PDF document text
    • https://dijitisabotiji.weebly.com/uploads/1/3/5/3/135324222/3341474.pdfIn PDF document text
    • http://boketizabujig.scienceontheweb.net/administrao_de_marketing_philip_kotler_download.pdfIn PDF document text
    • https://bopovajo.weebly.com/uploads/1/3/5/9/135966354/nepamujemivip.pdfIn PDF document text
    • https://rurevudo.weebly.com/uploads/1/3/4/2/134265418/b892cc2c.pdfIn PDF document text
    • http://berozabekep.sportsontheweb.net/boundaries_in_dating_henry_cloud_free_download.pdfIn PDF document text
    • http://pewodebepefawi.scienceontheweb.net/arihant_encyclopedia_of_general_science_book.pdfIn PDF document text
    • http://petrol-v-pol-price.site/why_isnt_my_alcatel_chargingur9am.pdfIn PDF document text
    • https://rokumipizo.weebly.com/uploads/1/3/0/7/130776068/4207766.pdfIn PDF document text
    • http://foyou.store/fuwegavunixijakcfs4p.pdfIn PDF document text
    • https://wepopoxewu.weebly.com/uploads/1/3/1/1/131164118/gomowunukorikev.pdfIn PDF document text
    • https://damemebu.weebly.com/uploads/1/3/5/3/135316778/vegowexizuri.pdfIn PDF document text
    • http://kyponnik.online/chickahominy_river_bass_fishing_reportqkriz.pdfIn PDF document text
    • https://xudubuwar.weebly.com/uploads/1/3/4/0/134041851/kobolis.pdfIn PDF document text
    • http://xasumemazekejo.scienceontheweb.net/maxi_cosi_pria_85_installation_instructions.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/buponuwebi/77966447678.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/hq_trivia_answer_pattern.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/28332054078.pdfIn PDF document text
    • http://xusoromi.epizy.com/angles_in_parallel_lines_gcse_exam_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/fezoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/accelerated_reader_quiz_answers.pdfIn PDF document text
    • http://pewubik.atwebpages.com/apa_case_study_format_purdue_owl.pdfIn PDF document text
    • http://nijufunirel.rf.gd/tom_sawyer_theme_song_tagalog.pdfIn PDF document text
    • http://xatabaxad.rf.gd/little_red_riding_hood_into_the_woods_character_analysis.pdfIn PDF document text
    • http://bikutuvuxaxixo.epizy.com/39412045188.pdfIn PDF document text
    • http://ramasewo.epizy.com/97945342630.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_off00011336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11336 5608 bytes
SHA-256: 407b4ad6e3b247ab16de3ed77a77aa7eb9e1886ced98bc9c91e3f7732ec42763
font_01_sfnt_off00012683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12683 11052 bytes
SHA-256: bddcbf1347a3f2416929de930491dbc0b0eb6c40b6357764c5ee70657125ccee

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