Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f6758a096f29275…

MALICIOUS

PDF

70.2 KB Created: 2021-02-11 15:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b0bd586c3bedcf7931e598da213e9ccb SHA-1: 642e9c896415fba8c3eb311663b629e174bfe4ef SHA-256: 0f6758a096f292759d534c1e613dfb0535585be9dda2d4c31d9e455d97323afd
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=chapter+3+settling+the+northern+colonies+pdf PDF link annotation
    • https://vokavubibobudew.weebly.com/uploads/1/3/5/3/135316357/paxuse.pdfIn PDF document text
    • https://sipinawuzukefo.weebly.com/uploads/1/3/1/4/131410227/bolagatusikimekiro.pdfIn PDF document text
    • http://freshmind.net/modesto_craigslist_freeh2lbh.pdfIn PDF document text
    • https://komomofuxuz.weebly.com/uploads/1/3/4/4/134494735/47fb07.pdfIn PDF document text
    • https://rovisudaguxu.weebly.com/uploads/1/3/1/4/131438800/3864488.pdfIn PDF document text
    • https://setopotuvojinow.weebly.com/uploads/1/3/4/8/134877086/goxabi_xuninavowig_pidusewewavomi.pdfIn PDF document text
    • http://reduslim-italy.site/waltz_in_a_minor_virtual_piano_sheet4qmmd.pdfIn PDF document text
    • http://bio-ita.fun/sinanubawdwph8.pdfIn PDF document text
    • http://allostar.buzz/29874138042qcekm.pdfIn PDF document text
    • https://tusixifowidafoj.weebly.com/uploads/1/3/1/4/131437116/nekatuk-zewivikibixesa-jejoda.pdfIn PDF document text
    • https://gemuvubakada.weebly.com/uploads/1/3/4/4/134494784/37d6cb48f8.pdfIn PDF document text
    • https://kekageguva.weebly.com/uploads/1/3/0/7/130776826/9970189.pdfIn PDF document text
    • https://menanotiji.weebly.com/uploads/1/3/4/3/134322389/1409364.pdfIn PDF document text
    • http://pubggaming.online/vaverizewiwawiqxf7t.pdfIn PDF document text
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/8abf40d460011b.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/suzixegazunow/48887078196.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/income_guidelines_for_medicaid_fl.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/gubabebufu.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_off0000d51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51E 5488 bytes
SHA-256: b9706eea92e5ee73dd4c1eb5491df56f5013b1c87fd5862adbef4bd66e61b19f
font_01_sfnt_off0000e7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7BC 10332 bytes
SHA-256: 8d55a7d990c85b4ecd604fd1cc871241ab328fadd8964e7be7fcee3e896af843

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