Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa09150791995f0…

MALICIOUS

PDF

78.3 KB Created: 2021-03-28 11:19:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3fce5e8f039f794457a8283e1ac4bc82 SHA-1: 91dec59c42772577bca57e9bcae9d1598d2689ff SHA-256: eaa09150791995f00a49328a4dc97ffd1e7de5fd3b6b0b0c567096cd77081060
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 0.9993

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://zajinet.ru/strik?utm_term=what+is+public+administration+in+criminal+justice PDF link annotation
    • http://vumonivaxozutod.mypressonline.com/chemistry_formulas_list_download.pdfIn PDF document text
    • http://pejofewetoz.22web.org/c_e_o_full_form.pdfIn PDF document text
    • http://gixokil.iblogger.org/gu_anti_ragging_form_2020.pdfIn PDF document text
    • http://retesopi.iblogger.org/77087869988.pdfIn PDF document text
    • http://bukawavado.medianewsonline.com/9833137966.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/falevi/what_is_evicted_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/fundamentals_of_accounting_mcq.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/cdr_file_converter.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/brigandine_free_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/avenir_font_free_for_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/84155969152.pdfIn PDF document text
    • https://s3.amazonaws.com/xarojapi/96077548648.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/30060859027.pdfIn PDF document text
    • https://s3.amazonaws.com/jopomodilamego/bombay_tamil_movie_songs_bgm.pdfIn PDF document text
    • https://s3.amazonaws.com/fusopoxipo/how_to_read_the_bible_in_60_days.pdfIn PDF document text
    • http://sinusisokopex.atwebpages.com/behold_the_lamb_martin_willett.pdfIn PDF document text
    • http://reruwok.rf.gd/ordinary_annuity_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/sepawi/vaxaragewulivo.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/55240593052.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/chocolate_cake_nutritional_information.pdfIn PDF document text
    • http://gozudivigel.epizy.com/24830820089.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/anlage_av_steuererklrung_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/ponivotigegepub/lagu_dangdut_anggur_merah_megi_z.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_off0000f407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF407 5540 bytes
SHA-256: 4ca56bd8b8f679e57b71b5ff82ac4b7d617a9b7aae52797d36f31ede3da31880
font_01_sfnt_off000106bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106BB 10964 bytes
SHA-256: cca350f8540cbb9ac96147d4e858bb3f691d140610c9d1c42f04a2630208ab4a

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