Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07abab0dea317da…

MALICIOUS

PDF

84.9 KB Created: 2021-03-09 15:10:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 0ca60c86ddd4448989fdf7863f0c166a SHA-1: db147e90d733ed83458b8e7d8d543ca2a6fc621a SHA-256: d07abab0dea317dae36bec7ea5787cbf12b057dfc368b16d852eacef44327c21
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains numerous embedded URLs, with one prominent URL pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The PDF's structure and content, despite being partially obfuscated, align with tactics used to disguise malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://xezojetit.ru/aws?utm_term=will+a+4.5+cu+ft+washer+king+size+comforter PDF link annotation
    • https://cdn.sqhk.co/baxalelizop/ehaThet/home_buying_classes_in_cleveland_ohio.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/vukojivo.pdfIn PDF document text
    • https://cdn.sqhk.co/tovipovo/beIijih/xfinity_stream_beta_not_working_on_roku_initializing.pdfIn PDF document text
    • https://cdn.sqhk.co/zodavujera/wRhjif2/17783017731.pdfIn PDF document text
    • https://cdn.sqhk.co/zetuzire/bgjiAhh/10969419869.pdfIn PDF document text
    • https://cdn.sqhk.co/vilubofi/gfeHwhf/ice_cream_parlour_menu_ideas.pdfIn PDF document text
    • http://lubenoredeji.mypressonline.com/17080000479.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac353f24-300c-41ad-8189-acb9e9057cfb/stranger_things_series_3_age_rating.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/recruitment_agency_company_profile.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/218689c2-d43e-44bc-9e59-6bc8df9e4bc3/rebecca_daphne_du_maurier_hardback.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/950f5eb5-055a-462a-af6f-08ca46b7e4cc/jewigapa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70cd18f8-f0f8-4453-9494-ae8f299d5412/712643728.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40305204-cc62-4cc5-93f9-8171a1bb31bb/python_code_for_booking_seats.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/42228ea1-dc32-4051-9167-81ac3a7e6873/what_do_i_need_to_change_my_address_on_my_license_in_georgia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a01a025c-2b3e-432f-8ae5-5043341d6ba3/the_logic_of_american_politics_9th_edition_ebook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c8c0f31-091a-45e7-b3a6-eadae52112b0/saruliserowodazazifir.pdfIn PDF document text
    • http://pevipitoz.atwebpages.com/alla_prima_technique_oil_painting.pdfIn PDF document text
    • http://guxejusoselota.myartsonline.com/lean_management_system_examples.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4008bf0-e50d-4134-8c0c-792829154ecf/economic_development_jobs_salary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98e488cc-5e73-40a4-9e11-04cc4a8fb598/risobovir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/355a2864-8b9c-4454-8233-1f46df4c9e19/razer_ouroboros_wireless_setup.pdfIn PDF document text
    • http://bavotuvezomevi.myartsonline.com/8848671998.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e93c242f-678b-423f-b811-7bd3c325ba3f/investment_science_2nd_edition.pdfIn PDF document text
    • http://jeborawaleko.atwebpages.com/como_agua_para_chocolate_book_english.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_off00010d5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D5E 5756 bytes
SHA-256: 195cc0311d7dccdea8e1b70f1a71b6639536abe920e024ea89ad27e0da9302ca
font_01_sfnt_off0001210c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1210C 10800 bytes
SHA-256: dd0bc4dde525460cb1f3de29dd2bb4bd1beb98d84befeecea50b525d549438ec