Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe4e209f01618b8…

MALICIOUS

PDF

74.2 KB Created: 2021-03-29 01:57:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: ba0c01d95035d4f361bfb8207b515f39 SHA-1: 2209e49379e2376a306e38147f93123bf8a8769e SHA-256: 1fe4e209f01618b884570edd168f64d8ce91108a404a56125e0458b49bfdbc15
126 Risk Score

Malware Insights

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

This PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting or link farms, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, appears to be a lure related to 'Winegard trav'ler directv troubleshooting', intended to trick users into visiting malicious sites.

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://dugedepap.ru/strik?utm_term=winegard+trav%2527ler+directv+troubleshooting PDF link annotation
    • http://salizurewaki.mypressonline.com/49678766814.pdfIn PDF document text
    • http://somixewavado.sportsontheweb.net/bls_provider_manual.pdfIn PDF document text
    • http://faxusigeroles.sportsontheweb.net/non_biodegradable_polymers.pdfIn PDF document text
    • http://ganoget.scienceontheweb.net/lafanuwi.pdfIn PDF document text
    • https://bepixumute.weebly.com/uploads/1/3/5/3/135302933/4271282.pdfIn PDF document text
    • http://roxelejabojafe.scienceontheweb.net/kimafozesukusofefo.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/im_a_child_of_god_yes_i_am_spanish.pdfIn PDF document text
    • https://fumuradowije.weebly.com/uploads/1/3/0/7/130739974/a6fc03402d.pdfIn PDF document text
    • http://febisulel.22web.org/what_games_to_play_with_girlfriend.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gikosetopetidun.rf.gd/33087856786.pdfIn PDF document text
    • http://zopimejumujodeb.rf.gd/dragon_age_asunder.pdfIn PDF document text
    • http://mivajodeki.epizy.com/how_long_to_bake_sweet_potatoes_at_400_in_foil.pdfIn PDF document text
    • https://d3df31c7-72fe-42b1-a92e-0723e8ed7a16.filesusr.com/ugd/5bf82b_90e43d1136d64167b0e5f1e596707325.pdf?index=trueIn PDF document text
    • http://zesafemumibow.myartsonline.com/calendario_2020_feriados_ecuador.pdfIn PDF document text
    • https://20996a60-9695-4f45-8fdb-44bdc783da55.filesusr.com/ugd/c57cae_3ff3101f81744f47ac4f1faa0a0bdf26.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vavabi/minister_for_financial_services_australia.pdfIn PDF document text
    • https://s3.amazonaws.com/najubu/ithenticate_plagiarism_report.pdfIn PDF document text
    • https://76df98a8-3e94-4eee-a6f5-23e1de06049b.filesusr.com/ugd/54c74c_26f91d77805a4b1b918a22a0c84d6b86.pdf?index=trueIn PDF document text
    • https://45e41439-46a4-4c97-84f0-155cfeda4cef.filesusr.com/ugd/9d7ad9_0119903b755d49fabdbb51becb7010f0.pdf?index=trueIn PDF document text
    • http://kasegek.rf.gd/adb_install_apk_on_virtual_device.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/bibaxil.pdfIn PDF document text
    • http://siwemoxoxawevuv.atwebpages.com/marketing_communication_download.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_off0000e203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE203 5448 bytes
SHA-256: 586ecd2c311ba60dd30b6489244f471827663ad64999db75cf35bcf31688fd6d
font_01_sfnt_off0000f49f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF49F 11388 bytes
SHA-256: f79517a0f2e696ed4aead827cf809b578c03e24539a00e6cd4ddc2e66981244a

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