Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c376878976232bf…

MALICIOUS

PDF

78.0 KB Created: 2021-03-29 11:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea4dd49eb7c7c3bc287a8f2aedc6d370 SHA-1: 7e05b50bdee4282d55f37bd520066aea2ee1e570 SHA-256: 1c376878976232bf308541356cca7dd4cb79051384e836d5addb1c87934a52e2
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URI that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also strongly flagged this PDF as malicious. The presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/strik?utm_term=how+long+is+a+wire+haired+dachshund
    • https://cdn-cms.f-static.net/uploads/4488133/normal_6054c38d50e59.pdf
    • http://warokibujiz.getenjoyment.net/past_simple_present_perfect_exercises_macmillan.pdf
    • https://cdn.sqhk.co/mojuzizimu/bhhPeck/detokejefavojelidi.pdf
    • http://tamogulaganero.scienceontheweb.net/cebuano_language.pdf
    • https://cdn-cms.f-static.net/uploads/4463788/normal_6044fa3d72ed1.pdf
    • https://cdn.sqhk.co/gorisaburo/idhbief/zinulifopasotediragi.pdf
    • https://cdn.sqhk.co/navotezive/jj0bwjd/vikufifetiruwo.pdf
    • http://wasatosu.sportsontheweb.net/arduino_mega_2560_pin_description.pdf
    • https://cdn-cms.f-static.net/uploads/4493282/normal_5fd8fc3416c29.pdf
    • https://cdn-cms.f-static.net/uploads/4410962/normal_600ddcc1c143a.pdf
    • https://cdn.sqhk.co/zoboxoba/d4hjheJ/ding_dong_sheet_music_free.pdf
    • https://static.s123-cdn-static.com/uploads/4409393/normal_5ff4bf848c8a6.pdf
    • https://cdn-cms.f-static.net/uploads/4504568/normal_601509b26211b.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ad5a2334-6bea-4ebf-b182-b43cd8b0980b/cybex_arc_trainer_troubleshooting.pdf
    • https://uploads.strikinglycdn.com/files/d4196351-9767-4153-8b04-db2b123debf8/46628806619.pdf
    • https://uploads.strikinglycdn.com/files/5c381cc4-7752-4b16-a319-3bdbb4749fea/83295539170.pdf
    • https://uploads.strikinglycdn.com/files/9d2a619c-7139-4e8e-87a9-0dadb5780281/is_harry_potter_free_on_audible.pdf
    • https://uploads.strikinglycdn.com/files/ca3712b1-0b85-439a-9ea7-fbe3efbf7134/sudagipowemuniwaxube.pdf
    • https://uploads.strikinglycdn.com/files/4383f049-e2da-4455-aa17-c8e0e3137b04/fefunoketoz.pdf
    • https://uploads.strikinglycdn.com/files/d05b5ef1-0d1a-4dad-8a62-6fba0afff291/what_is_the_most_popular_game_in_canada.pdf
    • http://tapoloferazuziw.atwebpages.com/felulurokerutulonofebama.pdf
    • https://uploads.strikinglycdn.com/files/d8421781-3755-4a4b-8b52-bacbe5522094/25241000287.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_off0000f193.bin
82e35ce399afb1d3159bd26f7064db745e97d85c7c2274578405572ed19c6cd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF193 5252 bytes
font_01_sfnt_off0001037d.bin
03d5b9f48f74f27cb3acc2ad80eaff42c0a4571f87d7ec7e6bb435b4014725e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1037D 10876 bytes

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