Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab967b39275fcb52…

MALICIOUS

PDF

69.9 KB Created: 2021-03-07 14:26:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f2afd75e34b8a4433edaf36663584af5 SHA-1: 38c455339ab0eed4661fbfdd0ea05b145a1af236 SHA-256: ab967b39275fcb527a7ed04bb02937876ff546ff996ada8affb102dc664b1810
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=wwe+apk+games PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4409992/normal_603e871aa76a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460251/normal_5fd159649f20e.pdfIn PDF document text
    • http://introdom.ru/fifty_shades_of_grey_darker_imdbwwcug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446161/normal_60088a115a1a8.pdfIn PDF document text
    • http://kyukty68.xyz/how_to_change_time_on_a_citizen_eco_drive_watchrm5v7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464539/normal_5fec9360dcf27.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/55590c08-b1c5-4e35-97b0-f353f3818d47/puzidorikidila.pdfIn PDF document text
    • https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_f7af53ce86ad4228828c884114f57383.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/af2f740f-a562-4e91-8fdb-0f9dab8d1838/new_moon_book_cover_hd.pdfIn PDF document text
    • https://86f5e18a-8766-4ae7-b9bf-31430b627380.filesusr.com/ugd/911c12_0717e87e64d34470a07bd0f0bfa85fd1.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/639da025-3580-4fc9-baf2-cc6894815307/sig_p229_e29r-9-bss.pdfIn PDF document text
    • https://c3a7a64c-5591-430b-94d7-c2eadfdf3523.filesusr.com/ugd/966478_cf3195fab146479cb54739c643ec9b9c.pdf?index=trueIn PDF document text
    • https://254a6a59-343e-4b7e-907c-c4819e171fff.filesusr.com/ugd/decf6f_d77f673679e64370a4828632609cb8e6.pdf?index=trueIn PDF document text
    • https://c18d7360-3707-4bf1-9d6f-52ba7510fa17.filesusr.com/ugd/76cb06_63f656cb2c264d50aaa852d69bbfbadc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/af660a00-4157-461b-95c6-f94d1bceab7d/partituras_de_piano_de_canciones_cristianas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cad60db-68bd-4e0a-9d8f-2b8e601d3460/65533219078.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32ff655e-1e1a-4981-99c6-ff32e3b7dec5/24253660910.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_off0000d567.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD567 5180 bytes
SHA-256: 9ef86e0f0036f45d9c4b5cea574e3d8e2b5d59402d696287334e5318c3795191
font_01_sfnt_off0000e719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE719 10508 bytes
SHA-256: f44568520e6c5acac9f221069d14fa588a28a5f21de159bf28e47dfa93408459