Malicious PDF — malware analysis report

Static analysis result for SHA-256 3125b690fcaaf629…

MALICIOUS

PDF

70.9 KB Created: 2021-02-25 05:48:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2c18303ceaaf0c0d8a4a3c8f28f70bff SHA-1: 865c9472e7c118624c8326cf85cd7f8e9af16e96 SHA-256: 3125b690fcaaf629258ef2514b762feb0095b320669f415308409533cece48e9
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://druttle.ru/wix?keyword=lds+self+reliance+manual+find+a+better+job PDF link annotation
    • https://gidiwukos.weebly.com/uploads/1/3/1/3/131381706/monofibemuzodi-pukabuk-jegukonifo.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/fuzovafavosufuvuxepi.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/25414754410.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412568/normal_5ff9bad6ab080.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/public_health_administration_salary_in_canada.pdfIn PDF document text
    • https://warororob.weebly.com/uploads/1/3/5/3/135314520/tiburo.pdfIn PDF document text
    • https://xufipenisugiw.weebly.com/uploads/1/3/0/8/130873979/zirexokokif_fulutanene.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_5fd2dcf059581.pdfIn PDF document text
    • https://vetasokimatajed.weebly.com/uploads/1/3/5/2/135296406/5127547.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416144/normal_5ff210a2c6d4a.pdfIn PDF document text
    • https://doliwalesi.weebly.com/uploads/1/3/0/7/130776147/a79f0bd644.pdfIn PDF document text
    • http://pinegobojefo.getenjoyment.net/56082175764.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495392/normal_602c0d188e1e9.pdfIn PDF document text
    • http://giwapozolaleg.mypressonline.com/97082500571.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/bachelor_of_arts_date_sheet_2019.pdfIn PDF document text
    • http://nurupejizijij.rf.gd/jabitejetuzosopole.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/form_1023-_ez_eligibility_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/f_a_n_c_full_form.pdfIn PDF document text
    • http://dunuruzofugavix.rf.gd/79813576345.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_off0000d9b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B1 5324 bytes
SHA-256: 5d419ef04c198b2e0bf029f7728e9970724b122e5f7636aaf65e6bd08b985fae
font_01_sfnt_off0000ebbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBBC 10064 bytes
SHA-256: fcf0756b1bf103380aa6d967f8e86527d40a85cf0ff282d0c4385708e0a144ac