Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f0ab56e03d1050…

MALICIOUS

PDF

93.5 KB Created: 2021-04-26 05:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 5d1cec305ac2d2220f5f72d9c9c7be3e SHA-1: a176294f484ec430a3d36f5d8b6549553c31f98e SHA-256: 60f0ab56e03d1050af6803d2ef23a2c37ca08bacf315155519262845686311ac
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs pointing to disposable domains, many of which are part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded JavaScript, though not directly analyzed for specific actions, suggests potential for further malicious activity beyond simple redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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://mezovuduw.ru/strik?utm_term=shiva+samhita+full+text+pdf+in+hindi PDF link annotation
    • http://opticsystem.website/present_perfect_simple_exercises_with_answersh7evc.pdfIn PDF document text
    • http://kozlo.space/xugesindkhzj.pdfIn PDF document text
    • http://storeplus.pro/olympus_digital_voice_recorder_vn-7200_change_speedxcpwq.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369336/normal_6029d0ce70662.pdfIn PDF document text
    • http://yewes.fun/h2o_mop_x5_replacement_partso98fe.pdfIn PDF document text
    • http://rivimebowov.22web.org/bobifotujevoganufubuza.pdfIn PDF document text
    • http://graatorama.space/togaf_9_certified_study_guide_3rd_edlcory.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475985/normal_604875cfedc61.pdfIn PDF document text
    • http://stopnutristrike.ru/wizikenojedumavotuboxxotey.pdfIn PDF document text
    • http://daxosivonoz.iblogger.org/stages_of_language_acquisition.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380858/normal_602c198069032.pdfIn PDF document text
    • http://mediaverifiedbadge.com/lesson_plans_on_similes_and_metaphors_for_high_schooloo6dd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389576/normal_5fd393fadbcec.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/51392628-6b4c-4519-9bd5-31f5b5e9a2a3/diffusion_of_innovations_rogers_4th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47c40da0-b1b3-492d-b990-c22bded8bfd5/fufobunel.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/the_5_dysfunctions_of_a_team_lencioni.pdfIn PDF document text
    • http://tewidunutazi.rf.gd/refractive_error_correction.pdfIn PDF document text
    • http://nitovotiroxe.epizy.com/9028853255.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/words_that_start_with_xio.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/34683942550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2732f966-d38c-4584-b13c-28c0cd86f8dd/how_to_get_into_sentry_safe_without_code.pdfIn PDF document text
    • http://xazoviwupudowol.rf.gd/interpretation_arterial_blood_gas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfa9bfb1-1aa2-48d9-ba95-ad8127fda754/19098056614.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/60762844559.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/isc_grammar_exercises_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1554e5d-fded-4285-a699-40c197d77ecd/wiminezo.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D5 5188 bytes
SHA-256: 3f5fd912513e5b225f4b204f7d10cb833a7e7356457aa9395553c2fe47788d15
font_01_sfnt_off00010958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10958 3720 bytes
SHA-256: b91f3c26f37c28538ed09035cbea6f9221827f1e30b50c452f08cc820bcc167b
font_02_sfnt_off000114bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114BB 10748 bytes
SHA-256: 7d46ec39460c4d2b403c6686ac339e8ad1bcf007bab69db86b7603722341a66d
font_03_sfnt_off00013990.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13990 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
font_04_sfnt_off00014791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14791 9888 bytes
SHA-256: a51405b2bd555eea3976ba1e1f84a6f190b92f90c06c11524d09729ca5ffdf07

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