Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ec6dc14e0745226…

MALICIOUS

PDF

78.1 KB Created: 2021-03-22 15:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d1ce84acc83c9bdeeebea12246291bd2 SHA-1: 877d98c2c335ff1275526a9f01a2494892d1e60a SHA-256: 2ec6dc14e074522627653f0eaa00a91d6d9d195ff93ab3f51840eddfcda8ef7c
134 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to disposable hosting, and a heuristic identified it as a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to trick users into downloading malware. The embedded URL and the document body's reference to 'pandora one apk free download no root' suggest a lure for potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pandora+one+apk+free+download+no+root
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/lomojobu.pdf
    • http://rivepozepuxar.mywebcommunity.org/temajopo.pdf
    • http://yoga-italy.space/win_10_no_cursork7t7r.pdf
    • https://tomavibevojivow.weebly.com/uploads/1/3/4/0/134016690/zejemo_semovege_xefedikinole.pdf
    • https://japutiluzot.weebly.com/uploads/1/3/5/9/135991977/timibibosorepe.pdf
    • http://lnstagramverifiedbadge-form.com/barorojoputerulvvml.pdf
    • http://wotukujis.sportsontheweb.net/what_kind_of_hydraulic_fluid_do_you_put_in_a_log_splitter.pdf
    • http://buylettersonline.com/the_3_estates_of_francevubwr.pdf
    • http://lonotel.mygamesonline.org/pudodezijoforabixin.pdf
    • http://guginegafofa.iblogger.org/30602948489.pdf
    • https://susemozud.weebly.com/uploads/1/3/2/8/132814624/ribebofigojo-fodefipe.pdf
    • http://sujabupinoda.scienceontheweb.net/90804563111.pdf
    • http://pizuwujigajanen.medianewsonline.com/catia_v5_tutorial_free_download.pdf
    • http://jovefupe.mywebcommunity.org/avon_catalogue_septembre_2020.pdf
    • http://moitender.org/41363562824as63e.pdf
    • http://zevewidojodot.mywebcommunity.org/13331097368.pdf
    • http://rozogididibusar.sportsontheweb.net/astragalus_literatura.pdf
    • https://gomepenet.weebly.com/uploads/1/3/0/8/130874128/a4069a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://dikawixum.epizy.com/jivavunorukef.pdf
    • https://uploads.strikinglycdn.com/files/f6f24912-5638-48ae-bcc7-b4226d61313e/bezuzigugulewapesasedidis.pdf
    • http://jojogamuniwewiw.epizy.com/philippine_accounting_standards_2020.pdf
    • https://uploads.strikinglycdn.com/files/d4cb2014-366b-494e-9239-676854d4e27d/clasificacion_de_los_numeros_irracionales_y_ejemplos.pdf
    • https://uploads.strikinglycdn.com/files/1795f454-3488-408d-af01-83186dd15d30/how_to_set_default_zoom_background.pdf
    • https://uploads.strikinglycdn.com/files/c458741d-acc5-4e5b-9e43-669cbf1da730/boruzivuzefe.pdf
    • http://pupagerirawax.myartsonline.com/graphic_design_software_list.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8c2.bin
8c36f5cfa6bb37280fa44f8993b40b148a8bfb64923ecdbe38f359a94fd3ae64		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C2 4752 bytes
font_01_sfnt_off0000f901.bin
fa409a82acf7f7ae312e52545e8dcff600052e59e63cf033f7f44f8dc01591b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF901 10460 bytes
font_02_sfnt_off00011caf.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CAF 4324 bytes

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