Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fdc733104f67e29…

MALICIOUS

PDF

64.4 KB Created: 2021-01-21 14:13:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2c3ce12ca2f7a1caac0aec20b5868fa4 SHA-1: 20c644302f0be0a1c1a5c98d465805e189f4e669 SHA-256: 3fdc733104f67e29055b7944d28c3aeaee54be5da4e367b87a79ec99388a6ae9
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/aws?utm_term=analytic+geometry+and+introduction+to+calculus+pdf PDF link annotation
    • https://site-1173293.mozfiles.com/files/1173293/xolaku.pdfIn PDF document text
    • https://site-1218116.mozfiles.com/files/1218116/bujovavupujalotel.pdfIn PDF document text
    • https://site-1196275.mozfiles.com/files/1196275/tavenuwuvatefiwi.pdfIn PDF document text
    • https://site-1185570.mozfiles.com/files/1185570/nick_jonas_camp_rock_song_lyrics.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/NpnjiRH/money_lobby_gta_5_ps4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443809/normal_5fdd108a89456.pdfIn PDF document text
    • http://goduvide.22web.org/dawas.pdfIn PDF document text
    • https://site-1171806.mozfiles.com/files/1171806/rts_novogodisnji_program_2020_pevaci.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xewenofos.epizy.com/teamviewer_min_ph_mi_nht.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/31839773137.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/tipos_de_certificados_de_calidad.pdfIn PDF document text
    • http://wupenokisu.epizy.com/informix_4gl_developer_tools.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/blaziken_pokemon_photo.pdfIn PDF document text
    • http://vanomuwoz.epizy.com/tasemixokebojiziw.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/56501861843.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_off0000bd03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD03 5564 bytes
SHA-256: 16167d9f21d2242d8adee5cf261158b0fe4b990021207909d3bc1bac55d03a17
font_01_sfnt_off0000cfe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE9 11532 bytes
SHA-256: a0e73b27a64210e957adb97e67abe89c0a18bc0396a72c4088b89e59b6842369