Malicious PDF — malware analysis report

Static analysis result for SHA-256 c325d5a7d5b2bb23…

MALICIOUS

PDF

70.0 KB Created: 2021-02-24 07:30:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fcf4184643c6864dffdc7f59426ddb68 SHA-1: 28aabaf3261ade4a9282ab48614c600aa1632c91 SHA-256: c325d5a7d5b2bb23317a6c821c2cae5490073243a6ad4c3d735d386c165777fb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=twas+a+rough+night+understatement PDF link annotation
    • https://satizivuzaked.weebly.com/uploads/1/3/4/3/134383512/vegobebuwegew_netivetota_ririxozotozigix.pdfIn PDF document text
    • https://wufodiwefoveve.weebly.com/uploads/1/3/4/8/134891768/ad5d0.pdfIn PDF document text
    • http://soxabezavusuxud.22web.org/rurag.pdfIn PDF document text
    • http://xumegexujarev.22web.org/nifiwil.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/A2s2qhc/td_auto_finance_late_payment_number.pdfIn PDF document text
    • http://alcexpress3.xyz/what_is_the_purpose_of_dialogue_in_a_narrativehk85k.pdfIn PDF document text
    • http://newberginvestmentproperty.com/bootstrap_4_center_form_horizontalgj99w.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/smCHZjh/466968153.pdfIn PDF document text
    • https://zonanasuwovu.weebly.com/uploads/1/3/2/6/132683154/ketaxu.pdfIn PDF document text
    • https://fumaletaseker.weebly.com/uploads/1/3/1/3/131381433/3090367.pdfIn PDF document text
    • https://cdn.sqhk.co/vigomuraguf/ixigIji/wikuwejuwamogudodubez.pdfIn PDF document text
    • http://megantv.site/58402377719smekh.pdfIn PDF document text
    • http://goldotzyv.ru/angrist_mostly_harmless_econometricsl2gyy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vejabimumen.epizy.com/queensland_tv_guide_hervey_bay.pdfIn PDF document text
    • http://fuzariwa.rf.gd/driving_test_california_score_sheet.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_off0000d6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A2 5248 bytes
SHA-256: 7d091d4cbce85f91970945f724a8df0cae62228145f85e71983323ac50a5222d
font_01_sfnt_off0000e85e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85E 10240 bytes
SHA-256: b543d1493b3d208db32412e60ec67516537dab824b78742b2ded4360b2b8e178