Malicious PDF — malware analysis report

Static analysis result for SHA-256 0380eaa2496a98a6…

MALICIOUS

PDF

73.2 KB Created: 2021-03-14 18:20:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2f6b3ef68b7303f4d6aa855022f3a9a4 SHA-1: 9294b454aea145cf911fff5cd7cc26cbaccc26d8 SHA-256: 0380eaa2496a98a625fff2861c0e8748df55d3fbfb723e2c5dc3cc2f587e81a0
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://druttle.ru/strik?utm_term=netgear+wnce2001+installation PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4472764/normal_6004d6bb2478c.pdfIn PDF document text
    • http://tonemisi.medianewsonline.com/xitipujur.pdfIn PDF document text
    • http://nevinidonet.mywebcommunity.org/barnes_akathisia_scale.pdfIn PDF document text
    • http://girepodemaz.getenjoyment.net/nawumeli.pdfIn PDF document text
    • http://xaxikobovivo.22web.org/31370666928.pdfIn PDF document text
    • https://xanusirotenil.weebly.com/uploads/1/3/1/4/131407364/38b7e9.pdfIn PDF document text
    • https://popupobapovuzus.weebly.com/uploads/1/3/4/0/134012290/tovukutuwa.pdfIn PDF document text
    • http://megidexabaror.mywebcommunity.org/popapesezikufesani.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485946/normal_5fff340e51df0.pdfIn PDF document text
    • https://joposiga.weebly.com/uploads/1/3/5/3/135399072/midiwinexogu.pdfIn PDF document text
    • https://bexokafosirur.weebly.com/uploads/1/3/2/6/132695536/b4641ffa89f36e.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/13d24822-5651-49c9-b3fa-139db10902ab/the_way_to_happiness_movie_download_filmyzilla.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f07321f7-cda8-49e8-b051-6b34d253b5bc/52538079770.pdfIn PDF document text
    • http://fumibilulad.atwebpages.com/in_search_of_lost_time_free_download.pdfIn PDF document text
    • http://dubekitaxa.epizy.com/rscit_admission_form_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf78b6c2-335b-46cb-9013-073a70643e37/17_sustainable_development_goals_sdgs_of_the_2030_agenda_for_sustainable_development.pdfIn PDF document text
    • http://nuladefamevib.epizy.com/vumoworoxekudakabuwuboz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e0123a16-87f5-40fe-ae43-c3eecdd70caa/tijinomadoxe.pdfIn PDF document text
    • http://wubexemetaxoru.epizy.com/lixazu.pdfIn PDF document text
    • http://kulemekomojiva.epizy.com/pitigemuzebasademigavopen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c51d5ad-1b49-4366-b866-906598956452/12052295546.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13a45e10-2ea1-47a8-b690-1a57baf1c4f9/51055019918.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bc13814-82ee-4db5-95c1-0728e5ec5962/bowoludepusepinosepewa.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_off0000e0cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CD 5356 bytes
SHA-256: be97f52d96ab2da114dccb50d31d3372acb7c335c43ee1f49e961d41b111e95d
font_01_sfnt_off0000f32f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32F 10468 bytes
SHA-256: 959f4658bd81fd5e9961792ce95241d4c506879a3703b5291d9a901a3d8a44fb

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