Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec75a0fe7dcb2e85…

MALICIOUS

PDF

76.9 KB Created: 2021-03-30 14:09:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: acf61bea98cc277ebfcf3fb14127495f SHA-1: 788b1acff7f7209afa856bd1bcd804d50768f5d1 SHA-256: ec75a0fe7dcb2e8560161609031016593cb2796b6d379a0b0b618287371119f0
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, one of which, https://jumiwimov.ru/123?utm_term=marvel+movies+in+order+of+release, is flagged as suspicious and likely leads to a malicious site. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM indicates the PDF is part of a link farm on disposable hosting, suggesting a phishing or spam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://jumiwimov.ru/123?utm_term=marvel+movies+in+order+of+release PDF link annotation
    • https://cdn.sqhk.co/guranotup/gcidOjh/reformed_baptist_church_jacksonville_nc.pdfIn PDF document text
    • http://finuxezanasa.mygamesonline.org/honda_pilot_maintenance_code_a123.pdfIn PDF document text
    • http://zotokes.iblogger.org/math_formula_for_greater_than.pdfIn PDF document text
    • http://xasekijig.mypressonline.com/89868167408.pdfIn PDF document text
    • http://gomunawuwox.22web.org/1860974025.pdfIn PDF document text
    • https://cdn.sqhk.co/gofelaxes/lheoQT6/offline_games_free_download_laptop.pdfIn PDF document text
    • http://fafijitesulexiz.mygamesonline.org/alimentacion_complementaria_minsa.pdfIn PDF document text
    • http://lixebafevoku.mypressonline.com/pneumonia_ppt.pdfIn PDF document text
    • http://fejekadiwoxobiz.getenjoyment.net/wexakudutabu.pdfIn PDF document text
    • https://cdn.sqhk.co/vufisolepu/Nkwific/mtg_arena_war_of_the_spark_lands.pdfIn PDF document text
    • https://cdn.sqhk.co/retesixabe/gfiddz3/16719579366.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://89f68ddc-9f98-4e60-8afa-3e0ca6603e9e.filesusr.com/ugd/4725f1_2058a983990946578f9b05d380399e8b.pdf?index=trueIn PDF document text
    • https://9cf5cc10-3c2e-4e30-ae6b-73ed7beed88a.filesusr.com/ugd/5c2b46_29cd69b1d5f94cd7853acaaaf1d5e184.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/sazariwapa/philips_universal_remote_setup_button.pdfIn PDF document text
    • https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_e5d0c9d4f38642efae95c22f5481f165.pdf?index=trueIn PDF document text
    • http://wusipoz.rf.gd/anansi_and_the_pot_of_beans.pdfIn PDF document text
    • http://wekolaxoretewov.epizy.com/waaree_solar_inverter_datasheet.pdfIn PDF document text
    • https://77483064-5892-4b52-b419-66e751946b77.filesusr.com/ugd/ef7b09_8eacc9f405854c548165d0e101a7f910.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kefefetafij/dekenikanigazijenipa.pdfIn PDF document text
    • https://s3.amazonaws.com/xetasif/fajaleripuromokexudazixu.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/sistema_endocrino_concepto_corto.pdfIn PDF document text
    • http://wasaxotudulolo.epizy.com/bfa_leveling_guide_110-_120.pdfIn PDF document text
    • http://fewasav.rf.gd/everstream_movies_premium_apk_cracked.pdfIn PDF document text
    • https://1b6fe947-be7e-4494-9a94-f566f178d3d1.filesusr.com/ugd/89064d_fde113d7941f4cf2972dba55a9a6c6e4.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF24 5120 bytes
SHA-256: 22df39b7978a5ceb43691c28f33155c8f65022825ec639ab9e0d9abdfc5bbf32
font_01_sfnt_off00010088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10088 11120 bytes
SHA-256: f4ca4b40c7dd49ecb2eca7807eeab481578c05c63e7293dab41478adfeb6ad19

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