Malicious PDF — malware analysis report

Static analysis result for SHA-256 794708b8afc032a8…

MALICIOUS

PDF

68.9 KB Created: 2020-12-10 09:49:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 317323639d248fc263e580918264ceea SHA-1: 20644349a0bea97c8411d8c01fa98d9097cdb0a8 SHA-256: 794708b8afc032a8f9082c9dd58918f7a4f73f5868bf3dca16bc946d749b567e
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://traffset.ru/aws?utm_term=free+cut+out+letters+template PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374177/normal_5f9696a74cb2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377408/normal_5f89e9a61b757.pdfIn PDF document text
    • https://kigibituridugu.weebly.com/uploads/1/3/4/3/134352406/pipodufodetukorak.pdfIn PDF document text
    • https://gabozagabu.weebly.com/uploads/1/3/4/5/134506959/09ca5a77.pdfIn PDF document text
    • https://mawijazug.weebly.com/uploads/1/3/1/3/131380733/3ffddd0398af6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409096/normal_5fc04f7d2e8c5.pdfIn PDF document text
    • https://bemetezebore.weebly.com/uploads/1/3/4/8/134882820/niregole-momogedod-vezurerowar-jadidorureve.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369796/normal_5f9c8975d5332.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368229/normal_5fcbbfdb0d1eb.pdfIn PDF document text
    • https://bekijarodik.weebly.com/uploads/1/3/4/6/134617997/negasezufit.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa966c11-9d7b-497d-84dd-7ff624440811/lubixipamalik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a876adea-6e9d-489d-b5c7-b55332b6d4a3/sawuduxazigatubes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f19615b-703d-4363-816e-4caaa7b76e63/16439105489.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/64th_filmfare_awards_show_2019.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1a3b1c6d9645836275d5a/t/5fc8613b90a4f8549d76d744/1606967620363/39200766899.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f0132a2-14e1-4065-9bd0-5651e7570dc6/91703507572.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/tv_guide_listings_toronto.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc51bf8c6d96458363d4b13/t/5fc8a7b643b29e7a5afafb16/1606985655702/irish_players_most_premier_league_appearances.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_off0000d15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD15F 5032 bytes
SHA-256: ed716adc1412f5eb27b82c4e786f16eb9f2f51dc108edf10b1ec874ac98058ec
font_01_sfnt_off0000e267.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE267 10804 bytes
SHA-256: 44d80a7c03b3a7230bdb292f7cdbdfbc57d9e284be6e31e75ffc8f5623eec296

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