Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac6c091d10ec15f…

MALICIOUS

PDF

82.8 KB Created: 2021-03-15 13:58:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bdf27f1f1fb66a1932ddb0d02256d3f8 SHA-1: 5781565d69cddd2572d7ddaaf1ac43fbe40dd080 SHA-256: 0ac6c091d10ec15f7d0c8e758fa7f7194f9652980efe6b5c32b02974824e83bf
66 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified as a link farm on disposable hosting. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of external URIs and the heuristic firings suggest an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • 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://xezojetit.ru/strik?utm_term=the+paper+bag+princess+interactive+read+aloud PDF link annotation
    • https://cdn.sqhk.co/vinasujitupe/hhgejeU/11967508108.pdfIn PDF document text
    • http://theporte.xyz/even_odd_or_neither_symmetry_worksheet3xmex.pdfIn PDF document text
    • http://eglo.club/sanitas_sft_77_manuale_italianopbsf4.pdfIn PDF document text
    • https://cdn.sqhk.co/pidodalatip/kvihjfJ/cake_recipe_without_eggs_butter_or_milk.pdfIn PDF document text
    • http://tricitysikhs.com/mojuzavavoak8wp.pdfIn PDF document text
    • https://cdn.sqhk.co/rizitewav/F0hanLB/rollercoaster_mania_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/widafopaj/jhxjexW/66981494064.pdfIn PDF document text
    • https://cdn.sqhk.co/wepiwuvume/1if4gcX/lagu_henry_123_i_love_you.pdfIn PDF document text
    • http://kino-vezde.ru/marble_blast_gold_game_downloadkrpoa.pdfIn PDF document text
    • http://com-servers.online/15685644045j6p1f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8d684a1e-4078-49cd-b336-05adf09473b6.filesusr.com/ugd/2b25e8_eda2dc9a07f74ce49e783b3d732d3344.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/gedexim/formal_work_wear_crossword_clue.pdfIn PDF document text
    • https://c2093f15-f4fb-4bda-9582-db5404103fa6.filesusr.com/ugd/b28561_0a7c9f8dedd84d3c8c5be0edfd6b13e6.pdf?index=trueIn PDF document text
    • https://3dcfbd4a-ef33-49dc-a04a-0aaf5307c30d.filesusr.com/ugd/b47706_d9d8f4a762fc4070819ea2bb0ece0f34.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5705b03-9c5b-4e9c-b4ea-4877da1f8192/fisher__paykel_panel_ready_built-in_french_door_refrigerator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d95271e8-c514-4a24-9478-92da0377520c/wrecked_2010_camaro_ss_parts_for_sale.pdfIn PDF document text
    • https://s3.amazonaws.com/jozaponi/jofezulosug.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e2a0a8b-646b-4ee6-80ee-14f13a99c7fb/14634024155.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68623485-34d0-4adc-978d-a661859fba80/childrens_islamic_story_books_online.pdfIn PDF document text
    • https://3dbd840c-7861-42b4-b064-af52d1d2f4eb.filesusr.com/ugd/86319b_ea5890c861054157b46799ee56ffa01d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c086ea5-d192-43de-a0e2-e3843095f8d3/the_boy_who_harnessed_the_wind_movie_worksheet.pdfIn PDF document text
    • https://52a1af19-6946-4c37-aba6-ab00a30e4874.filesusr.com/ugd/5dc3ca_9dbccab39c26426b8238437a0f3ec332.pdf?index=trueIn 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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC4 5484 bytes
SHA-256: d97572c5af9526875cbd5b7f1694df65419e1568b0e7cdbb9dc5808c8941612d
font_01_sfnt_off00010263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10263 11108 bytes
SHA-256: c973b600eeee0ab7b5d5098bdb5e908194b3e390aa272f237e5720d9c4e2e88b
font_02_sfnt_off00012883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12883 16092 bytes
SHA-256: ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073