Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a54943571b1fe05…

MALICIOUS

PDF

74.2 KB Created: 2021-03-27 23:21:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d4f58bdcc8d7e228dc92ca0f2f1c9a27 SHA-1: dfc3ca424e12602b92be0ec201b17890bd2cc228 SHA-256: 6a54943571b1fe05439ea188b931dd89c038394527b61a085f866472d7507694
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 0.9991

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://jottigo.ru/123?utm_term=bacteria+perform+chemosynthesis PDF link annotation
    • http://fruit-ita.fun/57920388572pnyv8.pdfIn PDF document text
    • http://xonigej.mypressonline.com/apraxia_constructiva.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487626/normal_60565844a3ece.pdfIn PDF document text
    • http://praktika-ingenieur.com/renewavezagosivuxav9z3xz.pdfIn PDF document text
    • http://gagimubu.mywebcommunity.org/54013358531.pdfIn PDF document text
    • http://oneitshop.info/internet_and_intranet_engineering_daniel_minoli_free_downloadj0olu.pdfIn PDF document text
    • http://biwumani.mywebcommunity.org/the_way_we_die_now.pdfIn PDF document text
    • http://shmelev.pro/i_got_a_feeling_in_my_body_lyrics_elvisb7391.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453327/normal_60250dfd87ac6.pdfIn PDF document text
    • http://instapriz24.online/3646179314arund.pdfIn PDF document text
    • http://newser.site/2653913194vnmk7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421350/normal_5ffb23244ea8f.pdfIn PDF document text
    • http://amorexpo.com/kekawakewijapisarofvplfp.pdfIn PDF document text
    • http://vumogegotawugub.mypressonline.com/27099116725.pdfIn PDF document text
    • http://sexedate69.site/80958133720fyslw.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/lusegokaves/days_of_the_week_worksheet_printable.pdfIn PDF document text
    • http://molojagevatabu.rf.gd/nice_guidelines_stroke_prevention.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/online_pl_sql_code_formatter.pdfIn PDF document text
    • http://telenusu.epizy.com/future_pay_wallet_app_free.pdfIn PDF document text
    • http://rapamed.epizy.com/lonekub.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/60967503961.pdfIn PDF document text
    • http://zalupadinukoz.rf.gd/bachelor_party_movie_hd_video_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/cleaning_leaflets_templates.pdfIn PDF document text
    • http://kozifina.epizy.com/78418274878.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/buriladanaj.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_off0000e562.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE562 5372 bytes
SHA-256: cb2ee3af0e9c0376cd22f90393e7a8318e342c36447959ceaa528c84ec922c2b
font_01_sfnt_off0000f789.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF789 10520 bytes
SHA-256: 70aebf17f0537e1e88f3c276dff9710644339f6647f8a862fb99430829150770