Malicious PDF — malware analysis report

Static analysis result for SHA-256 c318bbd7810646d0…

MALICIOUS

PDF

95.1 KB Created: 2021-03-17 22:29:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a0f38b4fd717a4319dacac4fa9cebb4 SHA-1: 7cb853ea04986af94d9582e6794ffc182ee9e925 SHA-256: c318bbd7810646d09626060037cb94dc7c08c197bb244b273cbdfa411d41028f
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to religious topics, attempting to disguise the malicious nature of the embedded link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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://bologen.ru/wix?keyword=cuales+son+los+dones+del+hijo+de+dios
    • http://sibiwuketilivi.22web.org/zuponosepebedelojelozi.pdf
    • http://sabawosekedap.22web.org/what_did_john_locke_believe_in_philosophy.pdf
    • http://pilinopumewaza.mywebcommunity.org/viminafugexurefipufu.pdf
    • http://vekanebiferi.iblogger.org/xetejazorivel.pdf
    • http://rte-ita.fun/what_is_the_best_book_for_civil_engineeringsw42y.pdf
    • http://trysoda.pro/best_nicholas_sparks_booksettxa.pdf
    • https://cdn-cms.f-static.net/uploads/4485939/normal_601cbf3907bd1.pdf
    • http://savadaqwe.space/1998_cam_vintage_camera_premium_apkwgcti.pdf
    • http://difavusimope.iblogger.org/ruwej.pdf
    • https://cdn-cms.f-static.net/uploads/4412388/normal_6018d2c39325f.pdf
    • http://bagomebefekixob.getenjoyment.net/dungeons_and_dragons_5th_edition_unearthed_arcana.pdf
    • http://vurapajojijare.22web.org/can_i_buy_a_ham_radio_without_a_license.pdf
    • http://hiziryigit.online/boss_katana_mk2_manualj7ltv.pdf
    • https://cdn-cms.f-static.net/uploads/4386091/normal_602caa77668f7.pdf
    • https://cdn-cms.f-static.net/uploads/4371790/normal_5fd1c33878d5a.pdf
    • http://lovelyhouse.online/ponifojadibobunove1bpsp.pdf
    • http://fasabaf.22web.org/melunopag.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/ximupuv/free_background_pictures_for_windows_10.pdf
    • http://nolivajujereram.rf.gd/medicare_guidelines_for_diagnosing_diabetes.pdf
    • http://sasukagisodubex.onlinewebshop.net/how_to_change_time_on_samsung_idcs_18d.pdf
    • https://s3.amazonaws.com/fuvidokibet/nelinopazazasarimazasek.pdf
    • http://duwufinojitu.rf.gd/firemane_saga_book_1_summary.pdf
    • http://vifewupanog.epizy.com/natupewirejikozazubevo.pdf
    • http://doritiwenoxa.onlinewebshop.net/arcanum_unbounded_download_free.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_off00012ae6.bin
eec2311198495a4bc353016469730966835d49679daeed18a98faa9ab15954d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12AE6 2828 bytes
font_01_sfnt_off000134f0.bin
d19bd3ade19789321ccbabe6bcad6933652407d55ebd5161df0c406a5995e20c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x134F0 4796 bytes
font_02_sfnt_off00014537.bin
ac20038b98e0c63b275d305f29b56a03c19639e393ca0f75e974e7e354e9ede8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14537 12760 bytes

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