Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e61a5733a5be2b…

MALICIOUS

PDF

65.2 KB Created: 2021-03-04 18:49:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cf39354505d33deb3f7764319056434f SHA-1: 66a8ca2f97858d97525e7058e2d0cf57c30ac465 SHA-256: 36e61a5733a5be2b2660dfbbbe65f262b22862f9ce34ba6a2108a5b5ab853eb9
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://vilenefex.ru/wix?keyword=manual+j+spreadsheet+download PDF link annotation
    • http://lnstagram-blue-ticks.com/478066496876jug9.pdfIn PDF document text
    • http://dragonflysagewellness.com/49089359358tzchd.pdfIn PDF document text
    • https://venifamu.weebly.com/uploads/1/3/4/5/134501621/b6e440.pdfIn PDF document text
    • http://waxenotesanil.22web.org/60768395491.pdfIn PDF document text
    • http://eushopvmn.site/characters_in_the_novel_she_stoops_to_conqueriytcj.pdfIn PDF document text
    • http://momentikshop.space/early_childhood_education_ielts_answer_keyphm0b.pdfIn PDF document text
    • https://cdn.sqhk.co/mumepefofise/a83ggYp/70027660469.pdfIn PDF document text
    • https://cdn.sqhk.co/rukugewul/jbiijc8/58651120580.pdfIn PDF document text
    • http://pepirizibizedel.22web.org/flight_simulator_x_2016_mod_apk_aptoide.pdfIn PDF document text
    • https://jofogeva.weebly.com/uploads/1/3/4/5/134505403/gulasuvisal-rimodabo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sakikuzugodo.rf.gd/52796021879.pdfIn PDF document text
    • http://dagewokoxigu.rf.gd/licence_informatique_alternance_paris.pdfIn PDF document text
    • http://folezazav.epizy.com/98239502841.pdfIn PDF document text
    • http://lobulowigewimu.epizy.com/lilegojarixegefomagaloje.pdfIn PDF document text
    • http://dalotatafajadad.epizy.com/47420341858.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_off0000c3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3DD 5220 bytes
SHA-256: 3d89c7b22cc8a72859872a4629cc2000a5a451dd817b012a0f4f9f1166447f1a
font_01_sfnt_off0000d5b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B3 10128 bytes
SHA-256: c854f28cb98e129bcb3df9389a30804bf9630ccadb028bd79dede5480b5869ba