Malicious PDF — malware analysis report

Static analysis result for SHA-256 f50123d23019a5b9…

MALICIOUS

PDF

89.6 KB Created: 2021-04-06 14:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 9505b6214846f7d711caf1dee95d6203 SHA-1: d2f12937b878cf8b7ff79c81c31b918e5bc7d822 SHA-256: f50123d23019a5b9ab2e95b39111259356f65ff4e2dd01cfb1bcae70f30b63c3
126 Risk Score

Malware Insights

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

This PDF file is classified as malicious, exhibiting characteristics of a phishing lure. It contains numerous external URLs, with a primary malicious URL being https://seumenha.ru/strik?utm_term=coleman+powermate+5000+operator+manual, disguised as a manual. The PDF structure and embedded content suggest it is designed to redirect users to potentially harmful websites, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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
  • 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://seumenha.ru/strik?utm_term=coleman+powermate+5000+operator+manual PDF link annotation
    • https://cdn.sqhk.co/miviluwulux/jighih1/bunny_skater_mod_apk_download.pdfIn PDF document text
    • http://abreudesigns.com/jenn-air_oven_repair_service_near_mey9cjw.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/geLjihc/photo_transfer_app_iphone_to_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/iahihdN/bigo_live_app.pdfIn PDF document text
    • http://lagulatobir.iblogger.org/article_spinner_software_free.pdfIn PDF document text
    • http://goodshopsales.xyz/which_country_gives_the_most_foreign_aidgm5hw.pdfIn PDF document text
    • http://sagapopefa.iblogger.org/how_much_do_new_furnaces_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/riroxale/DiaSji7/molaper.pdfIn PDF document text
    • http://chisto-chisto52.ru/lenovo_g50-80_vga_drivers_for_windows_7_32_bitqesmb.pdfIn PDF document text
    • https://cdn.sqhk.co/jowowibow/ieiaWjf/beholder_indy_menu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jibapasugaxelo.epizy.com/67331574469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05c47c0a-bba6-427b-880a-1c7cc7aa03b6/galaxy_s6_stuck_in_boot_loop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2db49e25-ae46-436c-a08b-de59d01d4879/nusab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df24863c-6ee5-4893-a4aa-2d242167b363/17741816206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db059969-8b97-456e-9dd9-4063e9efb52c/tuvibovemukezonuboduf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad5d7b43-5031-4337-af56-56aa0b41f619/38351642068.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/webok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0acadf9-80d1-4444-b21d-957077397eaf/88408255397.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8962fd9-b55d-4687-8643-f87ccc90f58f/5_4_3_2_1_grounding_technique.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/fotiwakasobikotoroweg.pdfIn PDF document text
    • http://lugubukegi.epizy.com/sejofodefumetituni.pdfIn PDF document text
    • https://s3.amazonaws.com/wixanarer/13572479079.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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_off00011dae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DAE 5048 bytes
SHA-256: 2ebd7e9dae07cfcdd478326d5ce26775c92328d0f7a36018b5c3856b60e7c56d
font_01_sfnt_off00012ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ECB 13980 bytes
SHA-256: 7065974ac29fd19f529d432c80a3127e972b74eb1200e7be657c0bfd312a49c9

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