Malicious PDF — malware analysis report

Static analysis result for SHA-256 a03001b835d47432…

MALICIOUS

PDF

157.9 KB Created: 2021-04-16 16:03:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 80718453463e6112f47431941e215bde SHA-1: f1fd541d10f416216d7d1a02e5865853c8a9aefa SHA-256: a03001b835d474326ebc6bbfc1d2a6fabc78f3c75e013ad1a52844fc3b526a9d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to exploit users by directing them to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://dugedepap.ru/strik?utm_term=materia+y+su+relacion+con+la+energia PDF link annotation
    • http://zomenonezuzup.iblogger.org/polygamous_family.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477886/normal_5fe18ccb27501.pdfIn PDF document text
    • http://detarekowopowub.22web.org/63611806385.pdfIn PDF document text
    • http://kaforij.22web.org/inductrix_fpv_hd_rtf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496013/normal_604f027ca0b0d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467950/normal_60041afbd0e57.pdfIn PDF document text
    • http://gediputelilana.22web.org/blogs_de_libros_juveniles_para_descargar_en.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fezadup.rf.gd/boturoded.pdfIn PDF document text
    • https://s3.amazonaws.com/rirusozo/microelectronic_circuits_by_sedra_and_smith_6th_edition_solution.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e634ac3b-7848-45dc-aa05-8e389024e957/latin_and_greek_root_words_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/game_casanova_hotel_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/pakoja.pdfIn PDF document text
    • http://ruvibume.rf.gd/stihl_fs_56_rc_pull_cord_replacement.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/maze_runner_3_the_death_cure_-_train_chase__lego_trailer_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/sifarejobezelo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fdf33af4-ebe8-4215-93ee-292b3af45214/193338530.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/wokasojepuguzawer.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/fekitolon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dfb1042-583e-474a-90c6-952d0ce02338/business_law_textbooks.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b622cd2-15a4-4bcb-a64c-6bbff7456f65/vozijir.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/durga_saptashati_ka_path.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fc3737e-a1ea-467e-b1e3-aff3cd0bb76b/dry_density_of_cement_in_kg_m3.pdfIn PDF document text
    • https://s3.amazonaws.com/satulibaren/58449512736.pdfIn PDF document text
    • http://juvejuvikanu.epizy.com/gedetamigewujob.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020e38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20E38 5072 bytes
SHA-256: 04ac548daf757cfacd3ccca6fe03af35807a19ad0c42315e584477009c310e90
font_01_sfnt_off00021fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21FA0 16640 bytes
SHA-256: 7194964dd2931b7f0e63fe044aa3d0200f104ac7abaa65f1d56387c91d8ed15c
font_02_sfnt_off000253a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x253A9 16252 bytes
SHA-256: 7c482867d511a201549202ac35c8c21aba2fa79ce3b665a0eef4e30df24044e7

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