Malicious PDF — malware analysis report

Static analysis result for SHA-256 af89667b92061c8b…

MALICIOUS

PDF

77.3 KB Created: 2021-03-08 10:26:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a163ea67041003f2b1f383bac16dcb58 SHA-1: 4ed3ecf31abe0c785761fcbc51475f710ce019c6 SHA-256: af89667b92061c8bdecaf805ceb1a71376a4c0e62b6b688bd339e807dbdf3583
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Thermador oven repair near me' and embeds a suspicious URL. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/123?utm_term=thermador+oven+repair+near+me
    • http://zegevuk.22web.org/como_se_reza_el_rosario_dela_divina_misericordia.pdf
    • http://polobasopika.mywebcommunity.org/lirik_lagu_all_only_one_call_away.pdf
    • http://vanimerukaguto.scienceontheweb.net/fundamentals_of_engineering_thermodynamics_8th_edition_chegg_solutions.pdf
    • https://cdn.sqhk.co/bogulevim/iUzifjq/twice_kpop_songs_offline_app.pdf
    • http://salukapebuke.iblogger.org/consumer_reports_best_automatic_cat_litter_box.pdf
    • https://cdn.sqhk.co/zubavagi/ggiBibL/rajomonukavasakibixaduji.pdf
    • https://cdn.sqhk.co/riwifesineji/cC4Jgi1/archery_world_cup_2020.pdf
    • http://guzexesuge.mypressonline.com/how_to_write_a_good_bluf.pdf
    • http://feziweninepiv.iblogger.org/33088045227.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://53ebb62d-ddaf-432f-8dc3-1f4746653467.filesusr.com/ugd/bbd3cf_26822616553a434a8373458e2e67702b.pdf?index=true
    • http://kofaxafogi.myartsonline.com/which_is_better_janome_or_husqvarna.pdf
    • http://sipafol.rf.gd/deriwunesi.pdf
    • https://39c1d623-eccb-4af0-a86a-15328a2d61f9.filesusr.com/ugd/3cb6cb_5ccc96c791694e7db5199509b94fe402.pdf?index=true
    • http://xobebol.onlinewebshop.net/dog_man_books_guided_reading_level.pdf
    • http://wufagezigedo.onlinewebshop.net/metro_2033_exodus_good_ending.pdf
    • http://namakanexir.atwebpages.com/petroleum_production_systems_2nd_edition.pdf
    • http://rizokimom.epizy.com/52272793095.pdf
    • https://170a7d3c-74f0-42f5-9ead-98ae292a4922.filesusr.com/ugd/a18aa6_02963b6133084c4698ef41a143e8d6b9.pdf?index=true
    • https://2ddedb0e-b7b0-41c9-a8bc-c018bd0e6e4c.filesusr.com/ugd/70094d_96305eff3087407ba1f1cb1d973d3015.pdf?index=true
    • http://vujofif.epizy.com/21208278731.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea92.bin
e7de73d533a7494cf61d8f7f9fc24e6720cd56b6d41a40742b21152afa75e0ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA92 4996 bytes
font_01_sfnt_off0000fb63.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB63 3720 bytes
font_02_sfnt_off000106c6.bin
6c820ac8aefdd62e7ac9a6da37176eb130ce662bf24aba89f164ccdbdb34f48c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106C6 9576 bytes

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