Malicious PDF — malware analysis report

Static analysis result for SHA-256 37c411fb18af656a…

MALICIOUS

PDF

69.0 KB Created: 2021-03-07 21:27:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 5b5bf199c58fb7dcd868a07dac33821d SHA-1: 0e37db604e862ca093e71e608a554764a9c25def SHA-256: 37c411fb18af656a2c5e4893fd156005ddb989bec1598f6af024810d9993440c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/wix?keyword=ang+probinsyano+april+28+2017+in+roman+numerals PDF link annotation
    • https://pafuxasakilufa.weebly.com/uploads/1/3/5/3/135327400/kimadotesad.pdfIn PDF document text
    • https://sojekaga.weebly.com/uploads/1/3/1/0/131070529/9930128.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449602/normal_5ff92993371d1.pdfIn PDF document text
    • http://pexawegowe.mywebcommunity.org/61385466659.pdfIn PDF document text
    • https://xiluxobafuju.weebly.com/uploads/1/3/5/3/135323992/luzufukufavi-samopaxu-videzuxozirate-dodidagogagizef.pdfIn PDF document text
    • https://fevobubutexub.weebly.com/uploads/1/3/4/4/134481878/xikavudepi_sezozisibo_mufixanomo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374953/normal_5fcbe3119505b.pdfIn PDF document text
    • http://pinopizo.sportsontheweb.net/how_to_program_a_hunter_x_core_sprinkler_timer.pdfIn PDF document text
    • http://dunigaki.22web.org/lexemikat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447888/normal_6024fb74b7318.pdfIn PDF document text
    • http://zawubitukete.22web.org/itunes_mi_nht_mien_phi.pdfIn PDF document text
    • https://katopogovalasa.weebly.com/uploads/1/3/5/4/135401177/debadasigux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://2e81f42f-67f9-46a9-89e2-a5f3ab3b03ee.filesusr.com/ugd/f138f5_dc5be303071047f798f9b830c0edc9af.pdf?index=trueIn PDF document text
    • https://598a1783-db1d-4ebb-96f5-d3ad23e1e090.filesusr.com/ugd/ae99eb_24be74f5a268435cb9cbd32de4e1ddff.pdf?index=trueIn PDF document text
    • http://lufadavebu.epizy.com/wuzonadimisexisuxejoxiw.pdfIn PDF document text
    • https://72b50e20-f79f-40ca-96b4-24bef83e308f.filesusr.com/ugd/1a1092_8c94802d9cc845ee90d8d0b8bc24f961.pdf?index=trueIn PDF document text
    • http://robefopatobut.epizy.com/30863000006.pdfIn PDF document text
    • http://diwifesatikebak.epizy.com/coca_cola_hbc_ag_annual_report_2018.pdfIn PDF document text
    • https://6776ac3f-883f-499f-bc52-38dff818ec46.filesusr.com/ugd/969751_0c1cfe70c670496e8db1698b93c42f1d.pdf?index=trueIn PDF document text
    • http://zenujilap.epizy.com/90927375742.pdfIn PDF document text
    • https://8a6b9437-e7f2-49d7-8c24-351b272aa67a.filesusr.com/ugd/b18e4d_1269e214248a4e099755cac27f039bec.pdf?index=trueIn 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_off0000cec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC6 5972 bytes
SHA-256: 9a9b10c964a5a431089af603dc8a7675fc72e44a6972b634de61ea715d20215a
font_01_sfnt_off0000e313.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE313 10184 bytes
SHA-256: 4b5cdf785bfe3bd5644c0f43f393c8f55193169d27fd81f6672bc334034d5da9

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