Malicious PDF — malware analysis report

Static analysis result for SHA-256 3452cafaa89beedd…

MALICIOUS

PDF

79.9 KB Created: 2021-04-14 11:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 119c5666600de0bfd5a4e50a07300151 SHA-1: 7033d166d20688038b4430036f2e0af69f20c156 SHA-256: 3452cafaa89beedd2a63b4ce23e1fe0e15c971c13a1f3316fa3d54d4e820cbc5
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 0.9997

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://jumiwimov.ru/strik?utm_term=alternative+energy+wind+power+pros+and+cons PDF link annotation
    • http://prodive.su/12889998962i37cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378641/normal_6061413e04873.pdfIn PDF document text
    • http://com-signto6.xyz/me_before_you_full_movie_download_hd_popcornsu9ic.pdfIn PDF document text
    • http://betawajapasex.22web.org/android_sdk_folder_location_windows_10.pdfIn PDF document text
    • http://instapriz365.online/jozexeruviwexesaseu6tud.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391620/normal_600802f8a208e.pdfIn PDF document text
    • http://pifozuvarivin.22web.org/buromodudememenugizapunug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500425/normal_5fd961d0a0936.pdfIn PDF document text
    • http://afterdealer.pro/electron_configuration_listbb9sy.pdfIn PDF document text
    • http://nout-sale.site/nfl_sunday_ticket_2020_pricekg9dt.pdfIn PDF document text
    • http://dezowem.medianewsonline.com/katalog_stop_kontak_lantai_panasonic.pdfIn PDF document text
    • http://zofunubesosena.mypressonline.com/canna_coco_grow_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411218/normal_6066bc630b493.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fotisojaz.rf.gd/bollywood_movie_2017_18.pdfIn PDF document text
    • http://nanesipub.rf.gd/tokigegatudizunawonujoru.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/towaresuvepedejorebuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0d0fb56-feba-459f-8ace-afbc771e3a1c/what_weapons_do_mistweaver_monks_use.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7df2b35a-7fae-4443-af19-f7342b2fcb4d/how_to_repair_a_primo_water_cooler.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/formal_attire_def.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/92730938281.pdfIn PDF document text
    • http://kenuzuwemonuda.epizy.com/j7_prime_2_atualizao_android_9.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_off0000f972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF972 5484 bytes
SHA-256: 57232687182b66d738daa1631645f303df6032fe54bf70e3bdfc14f824a8e1d1
font_01_sfnt_off00010c46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C46 11044 bytes
SHA-256: 5d598d78057a43f29ced1b082be86aeca3e9582e063642cf9c748a57adc56a32

Open this report in the interactive analyzer, or submit your own file for analysis.