Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4389619c1435034…

MALICIOUS

PDF

89.1 KB Created: 2021-03-06 03:25:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: bff1d6f74b46c5c6bf510c5a34b26cf0 SHA-1: 02a8db9cca41429fdb20f0bf79deac17eb3103f8 SHA-256: d4389619c1435034e384593d1b7b8a85d66830bfba12904cb106a5a8698c91dd
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://fokemale.ru/award?keyword=australian+army+officer+dress+uniform PDF link annotation
    • http://zebinoleruf.iblogger.org/87669073725.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451225/normal_5fe208e1f1f1a.pdfIn PDF document text
    • https://cdn.sqhk.co/zevijevam/jeDZhfP/malelifolosevawisuweg.pdfIn PDF document text
    • https://cdn.sqhk.co/xogeloke/djcPEhh/t_i_evowars._io_hack_level.pdfIn PDF document text
    • http://vabadim.22web.org/what_is_fruit_of_poisonous_tree_all_about.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391008/normal_5fcf9573155ce.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rusozetowozo.epizy.com/18107924725.pdfIn PDF document text
    • https://45b0b119-5f8c-43e7-b437-4e12d17c1c81.filesusr.com/ugd/3826db_24cb9f8bb533446e858ff7549da7acb9.pdf?index=trueIn PDF document text
    • http://juxenemijoguku.rf.gd/nesajenapotar.pdfIn PDF document text
    • https://0ed7c29b-d5f2-4290-8b47-add6aa38300d.filesusr.com/ugd/32a223_3c10f5c45d1f4fef817ad9913e7186d6.pdf?index=trueIn PDF document text
    • http://novoboninixeme.epizy.com/jofigefiv.pdfIn PDF document text
    • http://pelotisevinok.rf.gd/airline_ticket_photoshop_template.pdfIn PDF document text
    • https://254b3b0b-79dc-4992-827c-fd4bb3db3178.filesusr.com/ugd/f515ca_f13b14b8ade249d9868f382df03d7b1b.pdf?index=trueIn PDF document text
    • http://rileponabamel.rf.gd/blood_transfusion_guidelines_ppt.pdfIn PDF document text
    • http://duloduxu.epizy.com/binary_and_hexadecimal_number_system.pdfIn PDF document text
    • http://jukigegamoma.epizy.com/legodewawatalidoviniz.pdfIn PDF document text
    • https://9cfe8934-cc69-4f76-a0d0-2e9849ea4530.filesusr.com/ugd/fd9558_b87668f158874367bb47c6445628e22b.pdf?index=trueIn PDF document text
    • https://9e2bb560-353e-4f5d-a08b-1363560edab4.filesusr.com/ugd/6c032c_ee329af0454e467f9e7eba756db843dc.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_off000122da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122DA 5256 bytes
SHA-256: 4e189f66be815227b701ae6f728e19f57448b897c43eab9fb70045413f94a8a3
font_01_sfnt_off000134ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x134AC 10084 bytes
SHA-256: e0d51d312890991471f2ea2a5887b42e19ab89513d5d9f1d8ebdc17c5dc785f5