Malicious PDF — malware analysis report

Static analysis result for SHA-256 f95db603fcab2001…

MALICIOUS

PDF

72.9 KB Created: 2021-03-07 22:25:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 46c2f3bf83c04cb08223e84eefe31369 SHA-1: 01116fa5d27998d041fe8b1fe18c3805c9284b3a SHA-256: f95db603fcab20016ef6489158d3c91e3b0d346fcdcf609399c333c6fb9c8d48
126 Risk Score

Malware Insights

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

This PDF file is classified as malicious by ML and ClamAV, indicating a phishing attempt. It contains numerous external links, including one to 'bologen.ru', suggesting it's designed to redirect users to potentially harmful websites. The document body, though heavily obfuscated, appears to be a lure related to a search query, further supporting the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=how+are+living+things+organized+into+groups PDF link annotation
    • http://avto-trokot.xyz/sasivebemokazebivomemov077p.pdfIn PDF document text
    • http://keto-s1.com/zilosorurebezasusofoxrszm3.pdfIn PDF document text
    • http://jurabosuw.22web.org/jemak.pdfIn PDF document text
    • http://bathforlegs.xyz/what_tools_are_needed_for_bike_maintenanceros8w.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://507d1b22-ea03-4061-a262-f79425337ca2.filesusr.com/ugd/a374b9_c777da8fe8ca43d495f8c830d65acc31.pdf?index=trueIn PDF document text
    • https://d80868e2-5d34-4dda-9345-0396294a35aa.filesusr.com/ugd/f9fac6_32894073c54f46409ee8089beb7c2269.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tonemakopinibem/model_code_of_judicial_conduct_2011.pdfIn PDF document text
    • https://ec8c99fd-5413-4e38-b6a0-2ccbba71fc6f.filesusr.com/ugd/de02f3_04959ef0134444129ab4781c3fd41ded.pdf?index=trueIn PDF document text
    • http://vakebajenom.epizy.com/d_r_letter_whatsapp_status_video.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/how_do_i_use_my_lowrance_elite_7_ti.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/seating_arrangement_questions_and_answers_indiabix.pdfIn PDF document text
    • https://s3.amazonaws.com/wolina/sibaviva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4168cc4-c450-47f9-97ff-90d6b029181c/why_is_my_maintenance_required_light_flashing.pdfIn PDF document text
    • https://49432a94-54bc-4d13-9d12-ea41d731e1b8.filesusr.com/ugd/a7c689_03f2c64fb4e349e49a051376da630f61.pdf?index=trueIn PDF document text
    • https://1c92f6d8-19eb-429c-9239-1cf6be91372f.filesusr.com/ugd/cc1a03_c9a0060bb506498f8f892dae7e4cc580.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d51b8088-b73f-4fd6-a3b5-a08ac6ddcb7a/71387385140.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8da0e1f6-7f8e-4716-a926-2bb47dbe2186/belgium_browning_9mm_serial_numbers.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/52479572242.pdfIn PDF document text
    • http://tikixowogozomi.epizy.com/edhelper_free_worksheets.pdfIn PDF document text
    • https://5c71d6b4-13b5-43a2-97a4-9a0eba4d0f4d.filesusr.com/ugd/0f1814_d532aec1b76c43f2acfd5210b335932c.pdf?index=trueIn PDF document text
    • https://5926284e-b61c-4ed0-95e5-27b9feedd2c3.filesusr.com/ugd/50c35f_accacfda774e4385848c7c2f1220ad64.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E6 5384 bytes
SHA-256: a7b3b6d6c44063fcbf9fdd64c915f551ce4fdd3c2a544fb563921439a162c20c
font_01_sfnt_off0000f34b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34B 10036 bytes
SHA-256: 5e2dfc3bcdc718d687b81ab861193be1c6faeb14e65d3c53ea45367ffa76b560

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