Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dc410eaeaedae27…

MALICIOUS

PDF

75.9 KB Created: 2021-03-30 17:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e6c79fc2abc06e6f962a19eba5c9018c SHA-1: 7f4c3b1f2b1350d3df775acd848c8521966692d5 SHA-256: 9dc410eaeaedae27eb857fe9ed6e0d9bca416234a5f5a655e1bfe19c30dd82aa
126 Risk Score

Malware Insights

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

The PDF file contains numerous links to external websites, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to appliance repair, aiming to trick users into visiting these malicious URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=why+doesn%2527t+my+lg+washer+drain
    • http://jaxagogilexet.sportsontheweb.net/tefezige.pdf
    • http://vugekowuzujed.scienceontheweb.net/harry_potter_complete_8_film_collection_dvd_walmart.pdf
    • http://forajetivajuw.iblogger.org/pokovatisetuwinu.pdf
    • https://cdn.sqhk.co/dasisogi/WhbQnid/legion_td_2_element_guide.pdf
    • https://cdn.sqhk.co/gafazakedoki/fha2ia7/d-_day_significance_in_ww2.pdf
    • https://cdn.sqhk.co/kafufojugure/Ijejjii/17642472189.pdf
    • http://gazajujana.mygamesonline.org/14280078893.pdf
    • http://jobopenufa.iblogger.org/auto_body_repair_technology_4th_edition.pdf
    • http://jusukigib.sportsontheweb.net/us_history_topics_after_1877.pdf
    • http://bonugonir.22web.org/vagidufivozew.pdf
    • http://xenojupu.mywebcommunity.org/calendario_2020_con_festivos_para_imprimir.pdf
    • http://sesesuruko.mypressonline.com/29106438991.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/bb82f7ae-ca89-4301-9ec7-211292a9a992/sumafemusemetefinipowe.pdf
    • http://kaloruligot.onlinewebshop.net/90722908752.pdf
    • https://uploads.strikinglycdn.com/files/b03ee29f-d94d-47b6-99d7-a32d6a1d31ac/jakizakagivedez.pdf
    • http://guwosimo.rf.gd/nuparelipen.pdf
    • https://uploads.strikinglycdn.com/files/afcfb00e-ad11-4083-a3ac-172a7c36b086/xivojuxo.pdf
    • http://fozozip.onlinewebshop.net/how_to_transfer_drivers_license_from_another_state.pdf
    • http://sopolakomuz.rf.gd/geometric_shapes_definitions_and_pictures.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e9a4.bin
9f580b95ecea51d36b91ee41ad7c7b9177fbbb60781b1ce2917402d4c33946b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9A4 5480 bytes
font_01_sfnt_off0000fc40.bin
931cc0fdae3b9774e875ad6c57c4ffea304b48a7e62855b28f2a9739bfad98d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFC40 11204 bytes

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