Malicious PDF — malware analysis report

Static analysis result for SHA-256 081422fa585f1c2f…

MALICIOUS

PDF

86.7 KB Created: 2021-05-01 00:10:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56dd6d68421824d945a59abf0b3717af SHA-1: 7bd5d316580de738275c4a8c00b1b2415840ca40 SHA-256: 081422fa585f1c2fd08d3f39e9fbdf24bcd5e6bd87785e20dfcc365e9ec95342
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site for phishing or further payload delivery. The document body appears to be malformed or obfuscated, but the presence of the external URI is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://pelibifir.ru/strik?utm_term=which+vegetables+are+good+for+what
    • https://cdn-cms.f-static.net/uploads/4407303/normal_5fe7ec92d4f5c.pdf
    • https://cdn.sqhk.co/rifelefiw/NSidsje/underhand_row_form.pdf
    • https://static.s123-cdn-static.com/uploads/4454054/normal_5fcf07933475d.pdf
    • https://cdn.sqhk.co/mitugejaxel/lDSYNjg/lucky_block_mod_for_crafting_and_building.pdf
    • https://cdn.sqhk.co/solumapidema/Ehj1Thp/weluwar.pdf
    • https://cdn.sqhk.co/fovugemut/9Mcgdib/galaxy_s7_edge_play_store_apk.pdf
    • https://cdn-cms.f-static.net/uploads/4476924/normal_604a8fc903db1.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/af413079-ab3f-47b1-b3a2-ac6f8fd6b4cd/hamlet_act_2_summary_scene_by_scene.pdf
    • https://uploads.strikinglycdn.com/files/13d6c77b-9465-4537-be68-2f594d573d4b/rujawerasoku.pdf
    • http://linakagiwabofa.epizy.com/google_sheet_template_calendar_2019.pdf
    • http://ligeziwofumupo.epizy.com/92746028194.pdf
    • https://uploads.strikinglycdn.com/files/a5752786-0861-43c9-b20f-9f7101b98307/how_to_change_adt_motion_detector_battery.pdf
    • https://uploads.strikinglycdn.com/files/56279ebf-f5cf-4f44-bf99-4359014871cc/new_yorker_subscription_deal_2019.pdf
    • https://uploads.strikinglycdn.com/files/ac4ca4de-1022-4aad-8745-362f816f652f/cuales_son_las_caracteristicas_del_modo_de_produccin_socialista.pdf
    • http://bajobakokela.epizy.com/nabifido.pdf
    • https://uploads.strikinglycdn.com/files/55981a2f-fef7-4a47-9224-6dc098eb0cb9/what_does_the_bible_say_about_mothers_working_outside_the_home.pdf
    • http://mijitililifi.epizy.com/povajevujajix.pdf
    • http://famomijis.onlinewebshop.net/catholic_catechism_questions_and_answers.pdf
    • https://uploads.strikinglycdn.com/files/43c6e3ea-a93e-4a46-823e-934c1a3f3b63/bepafuberi.pdf
    • https://uploads.strikinglycdn.com/files/eadab11d-154c-4d7f-8bee-c97fa5a460cd/what_is_a_peoplesoft_id.pdf
    • https://uploads.strikinglycdn.com/files/a04c4260-6afd-438b-b6b7-124d1d89155a/what_kind_of_oil_for_honda_eu2200i.pdf
    • http://sazebufaz.atwebpages.com/identification_of_inorganic_compounds.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_off00011643.bin
c1eb59346e0d6d76d55b2aa96f9b124100f9bacd936a2517e30bb6b79519a2fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11643 5588 bytes
font_01_sfnt_off0001295a.bin
66df1383be9144ecb69286014a0854d0c1a29a384b97fa4a14f5c7bf5df6953b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1295A 10476 bytes

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