Malicious PDF — malware analysis report

Static analysis result for SHA-256 820d970779f6c205…

MALICIOUS

PDF

87.2 KB Created: 2021-03-19 08:41:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: b9cacf9a0093dcbc8255a8cd758313eb SHA-1: f732023cba7835dd20944c8fe0d31b1c718ced7c SHA-256: 820d970779f6c2058fb5a3d0211fc98881378cdb7b7de0d1b9aaae3be0eb6e32
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous external URIs, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The primary malicious URL identified is https://lozipotod.ru/aws, which is likely used to deliver a secondary payload or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/aws?utm_term=how+fast+does+ups+priority+mail+ship PDF link annotation
    • http://baramijotafexo.mypressonline.com/sap_display_inbound_delivery_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486548/normal_6035cadb3df91.pdfIn PDF document text
    • https://roxunasof.weebly.com/uploads/1/3/4/3/134312726/4699114.pdfIn PDF document text
    • https://gotizede.weebly.com/uploads/1/3/2/6/132695714/relewofaxudafinom.pdfIn PDF document text
    • https://jatevabuxises.weebly.com/uploads/1/3/5/3/135382810/9573746.pdfIn PDF document text
    • http://bakuvuwojesefa.iblogger.org/abcd_movie_telugu_songs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367665/normal_601bb0593f0f2.pdfIn PDF document text
    • http://mivukiwoluwuj.iblogger.org/10773553837.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461761/normal_601779c7671a2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445324/normal_5fec8f11dc1c0.pdfIn PDF document text
    • http://papotanepif.22web.org/phases_of_the_moon_worksheet_free.pdfIn PDF document text
    • http://fezibinuzot.iblogger.org/kanonuximumudopemulo.pdfIn PDF document text
    • http://lalikexitaxixix.getenjoyment.net/bakozizowekixuniza.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/95cdf3ff-8b4a-461c-826d-1959d2dedf6a/can_i_ship_media_mail_internationally.pdfIn PDF document text
    • https://86908e24-11f3-43a1-9346-bf531f45ee0b.filesusr.com/ugd/97493d_fae78c90e019467ca63fd82fc5df6d83.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/2661cdae-4a57-4cce-baa1-45437370da23/tuxawi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb565c08-7b8e-432f-86d6-9ff7136af7c7/garmin_drivesmart_55_battery_life.pdfIn PDF document text
    • https://87164119-88a6-4d6d-a72f-b109cf2d88b9.filesusr.com/ugd/bd0a66_0281ce1b0f40430eb31b0aa31135c161.pdf?index=trueIn PDF document text
    • http://zupugininifas.epizy.com/27805605179.pdfIn PDF document text
    • http://guwaxilajoxeza.onlinewebshop.net/against_method_feyerabend.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63911afe-e858-4681-a5e0-93b4b27cc8d2/what_does_red_light_on_roomba_mean.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_off0001179c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1179C 5436 bytes
SHA-256: 5f005161ee13cb1c30546835aba148e74473f79a8bc9db1180584e66eed80f4b
font_01_sfnt_off00012a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A04 11000 bytes
SHA-256: 8fc5663bcf7ccb91ff13968b87835abd4698b5d02cd9949c90474a3f157c47e3

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