Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2886ec8874f2729…

MALICIOUS

PDF

79.3 KB Created: 2021-03-01 15:49:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 4e6e60a0908ffe65779e656913e76e4f SHA-1: a745a0d159e224bdc1e1f4d9ebbcbac692198bf5 SHA-256: b2886ec8874f2729070aacc11395375e5beeb271793da2680d2a4aad636e97e8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jumiwimov.ru/award?keyword=masters+of+the+wild+forsaker PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381759/normal_5fdfd823911e6.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/65437150320.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426830/normal_6026e4027a015.pdfIn PDF document text
    • https://ruwadegefanum.weebly.com/uploads/1/3/4/1/134108857/a95783cfcdda411.pdfIn PDF document text
    • http://bukupiduge.mypressonline.com/biganagutog.pdfIn PDF document text
    • http://azakalaza5.xyz/jesefomopalusazecuhmt.pdfIn PDF document text
    • http://pokemonrivals.online/online_application_form_for_uj_universityfeajd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379220/normal_601b2a5ad2daf.pdfIn PDF document text
    • https://s3.amazonaws.com/gonasidupij/31934243513.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/does_aslan_appear_in_prince_caspian.pdfIn PDF document text
    • http://bulakirip.getenjoyment.net/bidovekewava.pdfIn PDF document text
    • http://espaceabonnes.com/rerazezotxo3ic.pdfIn PDF document text
    • http://kalidejomepajo.scienceontheweb.net/mixubibapimamogiso.pdfIn PDF document text
    • https://virebutonoku.weebly.com/uploads/1/3/4/4/134486614/ketajejiwe-bajukax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470532/normal_600c651016b77.pdfIn PDF document text
    • https://sagerogokijisoj.weebly.com/uploads/1/3/4/6/134601402/c861583996.pdfIn PDF document text
    • http://blancer.xyz/how_to_make_balance_chemical_equationshnip1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://girofili.myartsonline.com/how_to_configure_netgear_wgr614_wifi_router.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_off0000fbc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBC7 5156 bytes
SHA-256: d792542ec7dc693bd2c83b439270786357dc114ae42523de503bcac359618305
font_01_sfnt_off00010d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D67 10240 bytes
SHA-256: f63f7df340001f093437c0949d0724985e8a7e8d614797c091eac77b7d3b5c50