Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ff06d60cabf9fa…

MALICIOUS

PDF

95.3 KB Created: 2021-03-28 18:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a49ae6a82a6a040c23245cb598843b6c SHA-1: 97b5af4466da95e7df2df0b25603c96cf4d553e3 SHA-256: f2ff06d60cabf9fac177cba11963b50f079184565e22f785df3baf6345f7e88c
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The 'SE_ENABLE_LURE' heuristic suggests the document is designed to trick users into enabling macros or editing, a common tactic for malware droppers. The presence of external URIs pointing to disposable hosting further supports this assessment, indicating a potential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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://pelibifir.ru/strik?utm_term=will+echo+dot+work+with+roku+tv PDF link annotation
    • http://barashik.space/vamusowuperibxoi8.pdfIn PDF document text
    • http://dulosava.iblogger.org/42811926514.pdfIn PDF document text
    • http://dontbeshy.xyz/save_the_earth_coloring_picturesair3w.pdfIn PDF document text
    • http://zimuzezu.22web.org/technical_analysis_for_dummies__2nd_edition.pdfIn PDF document text
    • http://xajaweronasuxo.22web.org/8th_grade_movie_parent_guide.pdfIn PDF document text
    • http://zemesod.getenjoyment.net/7041663413.pdfIn PDF document text
    • http://instapresent.site/contractions_grammar_worksheetsz2iul.pdfIn PDF document text
    • http://richteam.site/36674015501knk85.pdfIn PDF document text
    • http://cleanup-sale.site/autocad_app_for_androidgf7rv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xurixado/green_day_holiday_guitar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/397f5355-2df2-4007-a166-9ddc522a352e/subject_and_predicate_worksheets_with_answers_for_grade_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80a400ad-25d8-47a3-be28-24bd9c5675a2/is_the_esv_the_most_accurate_translation.pdfIn PDF document text
    • https://s3.amazonaws.com/zoluwivebiro/deloitte_asc_740_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4d851bf-c44b-4a14-ae3e-9f38096fb090/f_statistic_table_anova.pdfIn PDF document text
    • https://s3.amazonaws.com/xefejevife/boohoo_returns_form_ireland.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/macbeth_shakespeare_translation.pdfIn PDF document text
    • http://xekubizifakum.epizy.com/canon_eos_rebel_t5_lens_compatibility.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f90f57d-e5a7-4d2b-8a55-2e8240dd05db/fumusused.pdfIn PDF document text
    • http://begujewirefe.myartsonline.com/uakron_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f57b8d40-f202-4c33-9ee5-c77deb66f725/31791168738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6ae6ea8-e5a7-4892-9f7f-e3b828a1f544/90700919211.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b43e7976-6245-4e6d-9b81-c05eacbc7f6e/gawopuwategexaf.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_off0001377d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1377D 4868 bytes
SHA-256: 158bc4264e6386c7166c3500d729f329ca9c54e58d226a77ea1f6cd934a03bf5
font_01_sfnt_off00014820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14820 11632 bytes
SHA-256: c7ff307665079c2a3ed11a8dd1327756471313fbc73376971d79638f7b053033