Malicious PDF — malware analysis report

Static analysis result for SHA-256 47f00957fcdb148d…

MALICIOUS

PDF

73.2 KB Created: 2021-02-03 02:13:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4c541f42f58616b5b7ecf4d8c01a03e2 SHA-1: 9d8af5622db2bf20ac417ebdcd9fc547b0c02f65 SHA-256: 47f00957fcdb148df4809221d1e59e0c55484264d43841042b0a6c93e13213d3
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://seumenha.ru/aws?utm_term=simile+metaphor+hyperbole+and+personification+worksheets PDF link annotation
    • https://vatikaleme.weebly.com/uploads/1/3/5/3/135386674/jemujat.pdfIn PDF document text
    • http://circulshtangcalip.website/zofugugesokobawomisat1qu5v.pdfIn PDF document text
    • https://zeteparikimifol.weebly.com/uploads/1/3/1/6/131637109/790675.pdfIn PDF document text
    • http://idealica-itufficiale.website/sonny_bono_death_helmetq93o8.pdfIn PDF document text
    • https://latewumopinigan.weebly.com/uploads/1/3/4/3/134313498/powujexoxonubafogar.pdfIn PDF document text
    • https://doliwejivus.weebly.com/uploads/1/3/4/3/134353379/wekajafamo.pdfIn PDF document text
    • https://wodokapiv.weebly.com/uploads/1/3/4/5/134584818/raxisiperazek.pdfIn PDF document text
    • https://dudegakabiwuzab.weebly.com/uploads/1/3/1/4/131406663/799caa58dc30.pdfIn PDF document text
    • https://widonudafedezu.weebly.com/uploads/1/3/0/7/130776490/makevexag_xanisudawap_navotovuvokuki.pdfIn PDF document text
    • https://gowumobajakexe.weebly.com/uploads/1/3/4/5/134585768/zamejufebosebi.pdfIn PDF document text
    • https://zaridonuxubotu.weebly.com/uploads/1/3/0/7/130775126/mipudibavi.pdfIn PDF document text
    • http://delifeschool.com/jewajuvokuj4lpt6.pdfIn PDF document text
    • http://notevidesi.22web.org/98918794556.pdfIn PDF document text
    • https://kefileke.weebly.com/uploads/1/3/5/3/135392356/5e12f3ba.pdfIn PDF document text
    • http://freefire-gifts.com/vudozarikaga8dyqe.pdfIn PDF document text
    • https://wiruwopifezub.weebly.com/uploads/1/3/4/3/134345133/fotewugaxaw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruwiluleter.epizy.com/2418146747.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/84416969780.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_off0000e028.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE028 5896 bytes
SHA-256: f39546533ebae0ae3add130127a678e741c80d71961200999582b1092611cd4b
font_01_sfnt_off0000f41c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41C 10304 bytes
SHA-256: bb2a366f6f049ad9ce99cba3137db4d5ff8ef49235bc0ff849ca9849edbc9f08

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