Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d22d56977a073fb…

MALICIOUS

PDF

76.7 KB Created: 2021-04-08 10:02:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b42e1cf20166d4bb1e47efb966beeecb SHA-1: ee3d4c78cf6812ab583121dd7af69cfcf169af0e SHA-256: 6d22d56977a073fba6b70dd0cf7a1628c120a6127405acc4bc9baca30fd88923
186 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to disposable domains and are likely part of a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted, but the PDF structure itself is used to host a large number of external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/strik?utm_term=cultivo+de+arroz+en+el+ecuador PDF link annotation
    • http://profaudit32.ru/angka_penting_adalah7wztj.pdfIn PDF document text
    • http://xtreme-sport.ru/reading_comprehension_workbook_grade_5a2nkf.pdfIn PDF document text
    • http://indital.space/19373557191vcxjt.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/77035821794.pdfIn PDF document text
    • http://netewe5.xyz/manhattan_new_york_weather_reportham0y.pdfIn PDF document text
    • http://circulshtangcalip.website/suraxihhdw.pdfIn PDF document text
    • http://lemafesopeposuz.mywebcommunity.org/how_to_become_a_chick_fil_a_vip_member.pdfIn PDF document text
    • http://vigirorimikana.medianewsonline.com/11766411688.pdfIn PDF document text
    • http://oyuncuxx.com/zokobejitomujhgu8.pdfIn PDF document text
    • http://datab.vip/kali_linux_nethunter_nexus_6ponncg.pdfIn PDF document text
    • http://visunuduxat.mypressonline.com/nukifusalodapevutoroba.pdfIn PDF document text
    • http://tronreserve.online/barber_shop_midwood_brooklynk6vhe.pdfIn PDF document text
    • http://idealsit.fun/taurus_pt111_g2_9mm_feeding_problemszi1dl.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/2ab0b905-20f5-4271-a280-cefb0edf2ae6/49a_miguel_street_san_francisco.pdfIn PDF document text
    • https://2b12d24f-0c9a-4a32-b427-430aba395f0c.filesusr.com/ugd/6cfe90_95a5e276153a4ec6921ee9e6f536c410.pdf?index=trueIn PDF document text
    • https://fb075467-9d00-46c6-93ac-2b777f5e584b.filesusr.com/ugd/8bcd66_890ea53d43084c37847d65308e0f18cc.pdf?index=trueIn PDF document text
    • https://4a39c6c9-989b-4d11-b2d8-cc0becc7f193.filesusr.com/ugd/ef0078_0ed0adea5e1e46f4bfe8137301d1a934.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/76a0c376-c161-4b4f-b611-d3b0c3c474f4/samsung_sew-3037w_baby_monitor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c06ed531-eead-466b-a333-928ffafbd0e4/22021605526.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32cdcb4f-5bc7-4fb5-a1ea-ce234a2a8c27/the_summer_i_turned_pretty_book_2.pdfIn PDF document text
    • http://sazebufaz.atwebpages.com/comparison_of_adjectives_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afac6327-acb6-47db-b521-3d7984161751/28185242740.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7aeb288d-c104-4be9-a37e-21dd58b3ed0d/nobokizoxebunix.pdfIn PDF document text
    • https://3778afa4-e5d9-4bb6-be54-d343c89b577b.filesusr.com/ugd/11c894_d949fb6b7ff0466498240a5d42b68f0c.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c15ecca9-734c-4119-a876-0e7868c9ab88/47550410176.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6832ddc-c38f-4a47-bffe-3495e68a3ab4/how_do_you_disassemble_a_graco_pack_n_play_with_changing_table.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_off0000ed56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED56 4772 bytes
SHA-256: 0099e64a3921501f204ed84545314bc13e918b31093b64909aca1de07781dfb5
font_01_sfnt_off0000fda6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDA6 11636 bytes
SHA-256: 1b94a7d9b3c524c0198a6b2e1d9f0cc76563cb7832b962a0e8d79457fb898951