Malicious PDF — malware analysis report

Static analysis result for SHA-256 5455c2e8a8690315…

MALICIOUS

PDF

77.2 KB Created: 2021-04-05 11:01:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 301ee1472615fccc32ea6900758479aa SHA-1: 73fa6c926088f2215f528d10807d690dce1cf2a3 SHA-256: 5455c2e8a8690315351182df7b12be852cae9311f1d15f0b974fa359e1edffeb
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, with a high risk score. It contains an embedded URI pointing to 'xezojetit.ru', which is likely a phishing or malware distribution domain. The document body, though partially corrupted, suggests a lure related to car maintenance, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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=why+does+my+honda+odyssey+shake+when+i+brake PDF link annotation
    • http://xozawuledol.iblogger.org/decomposition_of_cellulose_by_microorganisms.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450356/normal_60215e4178ede.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500453/normal_5fef162746ae4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446259/normal_5fc656c0cc74e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448743/normal_602979cddae9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388163/normal_602a750b4f268.pdfIn PDF document text
    • http://salebobuja.iblogger.org/96525212540.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/wazotojemov/mla_format_works_cited_multiple_authors.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6ddf413-55c0-49a9-ba83-5f91d54514b5/sotokawodakemafugeti.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/edexcel_a_level_biology_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/81887041306.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d04e440b-4b2e-47d5-acb5-65caa29bd79a/19470520473.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/weed_eater_featherlite_fl20_oil_gas_mixture.pdfIn PDF document text
    • http://pomedoto.epizy.com/wawexonogibubo.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/60499875253.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/david_shafer_obituary.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/7342036981.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9863a73e-89af-4957-b1fc-d94588f1912b/what_is_system_planning_in_system_analysis_and_design.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29ac994e-61a8-4d43-8be6-ce755474462d/how_old_is_my_water_heater_by_serial_number.pdfIn PDF document text
    • https://s3.amazonaws.com/gajakelegeza/superannuation_employer_contribution_form.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/car_tracking_system.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6f4f899-ac18-48c0-948d-c50d5c35a0df/93628688642.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66d774c2-cc48-42ac-879c-74c84a829895/ubuntu_theme_for_windows_7_download.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/tobopuluti.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_off0000f079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF079 5444 bytes
SHA-256: 5ed1dea9b0df8b3b545938dc8cb81ca98a381edcf7ea8eb43ffcf85fe33db7a0
font_01_sfnt_off000102ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102EA 10524 bytes
SHA-256: 297a4e9b544f6f132efba80d59e7fcb115e9cdddfde4d1bf3d89f539bff5a900

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