Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5f573b3bb8e0bc4…

MALICIOUS

PDF

62.7 KB Created: 2021-02-12 13:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 92b6dd44391bd4c5909b59c650bc9a0a SHA-1: 65f916af9dbcba518f742e9363a8cc066e354b07 SHA-256: d5f573b3bb8e0bc448e1acc6522471f8c8f80d611fc689b0cf1ddcb362bb9c5a
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://jacksth.ru/wix?keyword=ap+bio+ch+12+guided+reading+answers PDF link annotation
    • http://gratoramaa.space/cancion_de_fuego_y_hielo_61ues4.pdfIn PDF document text
    • http://dreamingdeveloper.com/echocardiography_adalah06x23.pdfIn PDF document text
    • http://mon-compte-cmb.best/historia_de_los_canales_de_distribucion7vbdk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373271/normal_5fc9b1f550eb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451365/normal_60260bc6d0e23.pdfIn PDF document text
    • http://kigurumi.org/753552843299b5ci.pdfIn PDF document text
    • https://cdn.sqhk.co/kipaselofuza/jbZgHgg/gububegadipekakis.pdfIn PDF document text
    • http://tonagruz.ru/robavusutamavalugafenewif58km.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417221/normal_5feb973695429.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzojivemepe/ieidgel/calla_lily_plant_meaning.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480149/normal_5ff963496b4ec.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/jesidofefe/77542121201.pdfIn PDF document text
    • http://nipixexit.rf.gd/please_answer_the_phone_in_spanish.pdfIn PDF document text
    • http://fubolorira.epizy.com/tshirt_template_printable.pdfIn PDF document text
    • http://bidovug.rf.gd/mathematical_models_of_infectious_disease_transmission.pdfIn PDF document text
    • http://moxurux.epizy.com/96048458319.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/akai_lpk25_driver_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/memexelu/20433737706.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/hardy_amies_shirt_size_guide.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_off0000ba24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA24 5708 bytes
SHA-256: 2c4a32af14996aa65e4413e9f5aac0357784fdb07d27f65125ab5bfaab638a79
font_01_sfnt_off0000cd99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD99 9460 bytes
SHA-256: 4564aa2bf2c4b5aa05b0e2f801161798a79e8ad24efd97416c11bbf7daf11622