Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc919da1baa2c263…

MALICIOUS

PDF

85.5 KB Created: 2021-02-26 20:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: cfd741e5aacc32ce5c98bfed725932dd SHA-1: 8f50abd2efc3471d97c8b1ec9224e12dcb4d04d5 SHA-256: fc919da1baa2c263ef50e670485a0416e41d56c954ac075bff8b66565f12d209
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://kuzutuzo.ru/aws?utm_term=badger+insinkerator+1+3+hp+troubleshooting PDF link annotation
    • http://cpskras.website/xufomaxaxavepurelakelybdw0.pdfIn PDF document text
    • http://shoop-fn.ru/big_fish_begonia_ostvqujs.pdfIn PDF document text
    • http://fupodiruza.66ghz.com/child_s_play_parents_guide_2019.pdfIn PDF document text
    • http://lg-copyright.com/timex_ironman_triathlon_indiglo_not_workingwjuhv.pdfIn PDF document text
    • https://cdn.sqhk.co/tuvameboroke/g4hhhdC/47617461708.pdfIn PDF document text
    • http://myluckybet.xyz/rulusovabonei8bnh.pdfIn PDF document text
    • https://cdn.sqhk.co/gilubibawi/ii0qfhe/21000427725.pdfIn PDF document text
    • http://zoneeuro.pro/que_es_valor_actual_neto_en_matematica_financierakgzlo.pdfIn PDF document text
    • https://munulibur.weebly.com/uploads/1/3/4/5/134508804/xorogojepines_faregojunox_zegumizixu_kadab.pdfIn PDF document text
    • https://rabibenexu.weebly.com/uploads/1/3/5/3/135319922/60226535d008984.pdfIn PDF document text
    • https://cdn.sqhk.co/lebogomatoze/gfE3tgh/weekend_journals_discount_code.pdfIn PDF document text
    • http://masimepipet.22web.org/mejuzakodolezezatut.pdfIn PDF document text
    • https://cdn.sqhk.co/kifukuvitog/fhbXHJ1/wetidageso.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewakuw/jjgfr6A/yeezy_350_israfil_shirt.pdfIn PDF document text
    • https://xutifapob.weebly.com/uploads/1/3/2/7/132712150/vijekeburolaro-xebaluz.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/fixararololu/36128462615.pdfIn PDF document text
    • http://bamalupit.rf.gd/butterball_indoor_deep_fryer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/securecrt_file_from_server.pdfIn PDF document text
    • http://vitupofelomar.epizy.com/wopesugovesejufegix.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/signs_and_symptoms_of_ebola_virus.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/singapore_payroll_process.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/23383664517.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DF 7520 bytes
SHA-256: 67658655c22f18c3a5a9f19267c5df5c80742db840ae222594dfc8c4027b51db
font_01_sfnt_off00010d9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D9B 5692 bytes
SHA-256: 0755e0f24f1c9ad8b2c1d47edf971d65566318d2f05e83d89c216e22298244b3
font_02_sfnt_off000120fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120FE 11632 bytes
SHA-256: 28709198ee92247d95f9baaa043e86fbc589353c004d62fafb6aa245b8e9a998

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