Malicious PDF — malware analysis report

Static analysis result for SHA-256 893a8d7aaa7a452c…

MALICIOUS

PDF

75.2 KB Created: 2021-04-04 00:00:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cdc5bcc5e4923bad0aa393df6decb712 SHA-1: d0d72d8ce1dc5ab7bf67e90e7685a8be8ac1a370 SHA-256: 893a8d7aaa7a452c5eff44793b9dc927060180c8dfb77ef187d767127e713375
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'lozipotod.ru', which is likely used to redirect users to malicious content. The document body, though heavily obfuscated, contains text related to a movie search, suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/123?utm_term=chumbak+marathi+movie++480p
    • https://static.s123-cdn-static.com/uploads/4402718/normal_5ffc28e34676d.pdf
    • https://cdn-cms.f-static.net/uploads/4427268/normal_60174056da5c8.pdf
    • https://cdn.sqhk.co/tewokozogop/jcRa2hb/what_day_is_bandi_chhor_divas_2020.pdf
    • https://cdn.sqhk.co/vexorikodo/hijahd3/red_velvet_cake_recipe_uk_bbc_good_food.pdf
    • https://cdn.sqhk.co/dejuxafe/A3Bjbhf/wekekusuvonipotu.pdf
    • http://liwitesuzemumex.sportsontheweb.net/antianginal_drugs_notes.pdf
    • http://zomoxoxuriw.mypressonline.com/cat_in_the_hat_quotes_today_you_are_you.pdf
    • http://butalinonoruma.scienceontheweb.net/8292500854.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/0a43d510-1484-48ab-a2d9-bc37b144fd98/the_beatles_for_string_quartet_yesterday_sheet_music.pdf.pdf
    • http://fufudaloxola.onlinewebshop.net/piwezepemosigo.pdf
    • https://s3.amazonaws.com/zebarufuridorur/free_cad_viewer_for_windows.pdf
    • https://uploads.strikinglycdn.com/files/8be4c243-e86e-4320-925d-8df194565be2/zebra_gk420d_zpl_driver_download.pdf
    • http://suvalomimo.atwebpages.com/how_to_open_sentry_safe_with_combination.pdf
    • http://kopolug.myartsonline.com/ap_ward_sachivalayam_notification_2020_download.pdf
    • http://zaxuzut.atwebpages.com/versiones_del_bogotazo.pdf
    • https://uploads.strikinglycdn.com/files/9c015987-34c1-4936-9f12-0e351a60781f/aimpoint_pro_mount_loosening.pdf
    • http://kalasoziluxolim.myartsonline.com/ayushman_bharat_hospital_list_ahmedabad.pdf
    • https://s3.amazonaws.com/safago/45766641781.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_off0000ea7c.bin
30bc30f99e7036f70d5bd6504bd5ba3766d3cdc0d878cff115610aa6f9726a57
pdf-font-stream PDF embedded font (sfnt) at offset 0xEA7C 5444 bytes
font_01_sfnt_off0000fcd9.bin
53f9f3e26ed83268831e03630be252983525dfe93103fd6696f34c19667821bf
pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD9 10272 bytes