Malicious PDF — malware analysis report

Static analysis result for SHA-256 6641742cf625b526…

MALICIOUS

PDF

71.0 KB Created: 2021-02-27 06:26:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5be0286475aada58fdcbeb57b3d432b3 SHA-1: 36ba937f393d58172be5579f50af89df60b1d8a5 SHA-256: 6641742cf625b5264728790e9fee2cf47ca574ee346e386dc364e0aa6ff65125
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=speed+queen+dryer+specifications PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464525/normal_60191fe58c14e.pdfIn PDF document text
    • https://tedotedonux.weebly.com/uploads/1/3/0/7/130775879/gerejebipos-losarabif-rizare.pdfIn PDF document text
    • http://damodudajipofem.22web.org/55240454836.pdfIn PDF document text
    • http://pemizirevubel.mywebcommunity.org/is_the_big_nate_book_series_over.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426677/normal_5fcae87be707d.pdfIn PDF document text
    • http://fuvesozufinefi.medianewsonline.com/imbalanced_nutrition_care_plan_for_elderly.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450249/normal_5fc683342b750.pdfIn PDF document text
    • http://goligofalu.medianewsonline.com/how_to_update_hx_stomp_firmware.pdfIn PDF document text
    • http://paselon.getenjoyment.net/yamaha_yas_101_external_subwoofer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470699/normal_6006f4da36eba.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joxumokuri.epizy.com/cpled_student_guide_alberta.pdfIn PDF document text
    • http://wominilagovujul.epizy.com/ascus_hpv_negative_justanswer.pdfIn PDF document text
    • http://vorisenunajix.myartsonline.com/lexus_rx_350_suv_2019_price.pdfIn PDF document text
    • http://wesufonezis.epizy.com/safety_razor_close_shave_reddit.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_off0000d69a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD69A 5448 bytes
SHA-256: ccefa2c612356afbef899a0a984d7e0bd22322768706c82690f52c179c28201d
font_01_sfnt_off0000e93d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE93D 10776 bytes
SHA-256: e97ccd099916faa24563cdad8652f7316ba05241fb208982abe5ba453d9f3bd0