Malicious PDF — malware analysis report

Static analysis result for SHA-256 96f09335234af7ef…

MALICIOUS

PDF

76.5 KB Created: 2021-03-16 03:19:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ce5870b176076d3c4735d4479a28352 SHA-1: d5f97a1d4f1c7fe7032a65c07293c49f01783af3 SHA-256: 96f09335234af7ef1481c6d513fa6a8bbcb655bd936bbd8716b4ebadc224f918
96 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for an external URI, pointing to a URL that appears to be a lure for technical information. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URL suggests the document is designed to redirect users to a potentially harmful website, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://druttle.ru/wix?keyword=gestor+de+arranque+windows+xp+y+7
    • https://cdn.sqhk.co/lizuxutagisu/2jdphdo/mother_earth_news_print_subscription.pdf
    • http://artyom.guru/kenwood_ts-570dg_reviewj4nig.pdf
    • http://creditscorefix.info/what_is_the_plot_of_prince_caspian1fpdp.pdf
    • http://kawlites.online/dasopurezanupuwermrrdr.pdf
    • https://cdn.sqhk.co/kidurukazag/gfuijjh/24032750882.pdf
    • http://predouche.xyz/kosovawamuki8qgnb.pdf
    • http://tedurelaseji.mygamesonline.org/82139360554.pdf
    • http://tinivoze.22web.org/transfer_photos_from_android_to_iphone_backup.pdf
    • https://cdn.sqhk.co/kososojog/Zii0Uhf/xijerokofumujoganiwifem.pdf
    • http://alkostore.xyz/megubogeriu7j10.pdf
    • https://cdn.sqhk.co/mofosalamo/cjjcvgd/9489330611.pdf
    • http://nogivubuleduwi.22web.org/gozejamuzukuw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tokudapele/18923304761.pdf
    • https://1ffb5d6c-d890-49e0-9b87-dc10fbfa49e2.filesusr.com/ugd/8bc2a6_bf3e44f4191045e9a701395614580857.pdf?index=true
    • http://gipebevu.atwebpages.com/304496047.pdf
    • https://5090c2af-253d-40c3-bfb7-942fc6db26b0.filesusr.com/ugd/0511f5_bd404b7b1feb4354bd207e8d6e0c9b26.pdf?index=true
    • https://s3.amazonaws.com/fekife/solve_quadratic_equation_using_vertex_form.pdf
    • https://s3.amazonaws.com/padadutiseni/a_clockwork_orange_1971.pdf
    • https://s3.amazonaws.com/bejokazemur/cisco_catalyst_3650_g_manual.pdf
    • https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_b626034d5eed429c96a979339860a481.pdf?index=true
    • http://revupeponalewuj.epizy.com/berlin_public_transportation_map.pdf
    • https://s3.amazonaws.com/leteraxewe/apprendre_a_ecrire_le_chinois.pdf
    • http://sakunesazodi.epizy.com/muvegad.pdf
    • https://cf62593c-3f62-494e-9ef9-3c2a63ead7d7.filesusr.com/ugd/93dae2_cc5cd236ed43457abbfc8cfa3d0d97d3.pdf?index=true
    • 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_off0000eac3.bin
421d41ba7d6b345af27a5ae6a726d7f02fa441a871582a24ce1a9945641e060e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEAC3 5420 bytes
font_01_sfnt_off0000fd62.bin
837e3e16e80a9e00813400c05a6a4809141438d6c91cc526a2a2b577da657cc1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD62 11520 bytes

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