Malicious PDF — malware analysis report

Static analysis result for SHA-256 42d29d8b53c4c151…

MALICIOUS

PDF

71.5 KB Created: 2021-02-25 05:57:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 29f2e9c5a33a312ba652fb0f787c1ec2 SHA-1: b762998b536284085c7c0bacdc4cbdec247e9ae9 SHA-256: 42d29d8b53c4c15158f6b4a03dd09fbccc97952096125787bdb334ae9c6115d8
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • 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.
  • 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.
  • 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://crophysi.ru/wix?keyword=woods+of+shavano+apartments In PDF document text
    • http://jorowijedo.mywebcommunity.org/witox.pdfIn PDF document text
    • http://hd-cam-mirror-up1.club/will_there_be_a_book_after_crooked_kingdom4armk.pdfIn PDF document text
    • http://springtea.space/kizogitzjv16.pdfIn PDF document text
    • http://wevoselaxoto.66ghz.com/wopuwififozogip.pdfIn PDF document text
    • http://natiral.space/declaration_of_custodian_of_records_template2zffz.pdfIn PDF document text
    • http://gefosezidubajoz.scienceontheweb.net/niwepulewajasawisexopu.pdfIn PDF document text
    • http://antonio-ita.space/xuxavusarivokobe0j5k8.pdfIn PDF document text
    • http://katorewudejizut.22web.org/download_audio_drivers_for_windows_7_ultimate.pdfIn PDF document text
    • http://rowowevu.mypressonline.com/how_to_connect_directv_to_fire_tv.pdfIn PDF document text
    • https://gaxipisida.weebly.com/uploads/1/3/4/2/134267022/pinapikig-febajoveposi-zuxidavez-gatizezolek.pdfIn PDF document text
    • http://getplafond.xyz/satire_used_in_harrison_bergeronyjt4v.pdfIn PDF document text
    • https://wazexexa.weebly.com/uploads/1/3/5/3/135305699/disawijabelako.pdfIn PDF document text
    • http://degunoneb.iblogger.org/42467561470.pdfIn PDF document text
    • https://vafiradas.weebly.com/uploads/1/3/3/9/133988778/711d29522eb61fe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rinafuladimuk.epizy.com/how_do_i_restart_my_samsung_refrigerator.pdfIn PDF document text
    • http://tawenaxogiminax.epizy.com/blackbaud_charitable_giving_report_2019.pdfIn PDF document text
    • http://wewojujimijanu.rf.gd/jammu_university_notification_datesheet.pdfIn PDF document text
    • http://lavaraf.epizy.com/79580392123.pdfIn PDF document text
    • http://nubomozakazir.epizy.com/pigumapifurolebogo.pdfIn PDF document text
    • http://gimusatis.rf.gd/bin_file_editor_apk.pdfIn PDF document text
    • http://moxuwujapuj.rf.gd/wonij.pdfIn PDF document text
    • http://luselobek.epizy.com/xikijuluvob.pdfIn PDF document text
    • http://xakireponamo.rf.gd/ardas_kran_full_movie_720p.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_off0000dc57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC57 5320 bytes
SHA-256: 7eaa7ebccb30b49f86b58eb03847123e6fa1f293c9ba5a919572ce3f67fc7b98
font_01_sfnt_off0000ee5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE5C 10048 bytes
SHA-256: a3be5f05530f517b9049152511cbe32deab2121f1221283ad320a4a7ea2225c1