Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a80c3327b3d7795…

MALICIOUS

PDF

69.3 KB Created: 2021-03-24 06:15:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 1e54417a529a8778d4776f8e52a56a49 SHA-1: cce0272a3f7d0b793ff0f12542b401a6c7b8eb41 SHA-256: 9a80c3327b3d77957efb73d7dc2e4d1a74a1cd227158b154bb919b6344d665f9
124 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one pointing to 'kuzutuzo.ru' which is flagged as an external URI. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains keywords related to 'Hikvision cctv price list', suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9166

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://kuzutuzo.ru/award?keyword=hikvision+cctv+price+list+pdf PDF link annotation
    • https://cdn.sqhk.co/labifikup/jiyhitT/mebixefatitogaramoxoper.pdfIn PDF document text
    • https://raguwagoneneza.weebly.com/uploads/1/3/1/3/131384547/dimububiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374175/normal_605a65c58eeb1.pdfIn PDF document text
    • https://cdn.sqhk.co/pisomuma/xgh29OE/call_of_mini_zombies_2_apk_pure.pdfIn PDF document text
    • http://ejqy.com/how_to_start_learning_calligraphy4y2wo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500187/normal_5fe9087e1b10e.pdfIn PDF document text
    • https://kedixusivazusug.weebly.com/uploads/1/3/4/8/134869684/bulaxi_ginex.pdfIn PDF document text
    • https://dipakexamima.weebly.com/uploads/1/3/1/0/131069759/75c4c5a0efbde.pdfIn PDF document text
    • http://zizodoroluxonaf.sportsontheweb.net/south_indian_wedding_vegetarian_food_menu_list.pdfIn PDF document text
    • http://cetop.xyz/60555297030dq05.pdfIn PDF document text
    • https://cdn.sqhk.co/tekunipifob/lhaib9G/puvafosubapureboli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383566/normal_60286c0d53ce6.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/yziikgg/lutejufe.pdfIn PDF document text
    • http://tugrull.com/3_month_old_baby_development_chart8lf24.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414866/normal_6056ced897fee.pdfIn PDF document text
    • https://lopamazaveseku.weebly.com/uploads/1/3/4/6/134643240/vilumolomula.pdfIn PDF document text
    • http://posurazatux.mypressonline.com/how_long_does_a_solar_g_shock_last.pdfIn PDF document text
    • http://vimabanu.sportsontheweb.net/sebuvejezigakubomumafat.pdfIn PDF document text
    • http://cancandance.org/kanuwavezifol8acz7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462339/normal_5fe5ec02b4190.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b21c5777-a5d9-4127-8d37-ef0912491e81/15422487047.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f0f48c1-f99b-4956-b8de-cba9b72fa07f/what_does_bourgeois_mean.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c51fe63-3aa1-48db-a62b-0188cd8f1e39/billy_collins_reading_marginalia.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4FC 5024 bytes
SHA-256: dd98cc1d4df5664392996ebfc9855ab88f892f665d583a329e7cc349375d833b
font_01_sfnt_off0000f631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF631 10456 bytes
SHA-256: d5a292bec3abd790f54212e108e6aec546e61cd32b6ea30c5e6ecd163918e0fa

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