Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd73591d9fdfc65…

MALICIOUS

PDF

71.4 KB Created: 2021-04-09 00:26:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 82ba72bdfece3d8bc06b8499c9b32a3e SHA-1: 1551bac1dd6d797fe139ad4a669c10abf4705f55 SHA-256: bbd73591d9fdfc65bd4dd6fec7a56afe0fe28ba0a0365df4a764dd37cfc908d7
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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+scientific+management PDF link annotation
    • http://card2card.live/xaxosizudefuperuzokan33cc8.pdfIn PDF document text
    • https://foderojev.weebly.com/uploads/1/3/4/0/134041652/xalizir.pdfIn PDF document text
    • https://ruzuxopamekegi.weebly.com/uploads/1/3/4/7/134748505/musesuwuxa_fatoroxunajunun_wikudet_mitofevalagil.pdfIn PDF document text
    • https://kusipujetaz.weebly.com/uploads/1/3/4/4/134462876/1442239.pdfIn PDF document text
    • http://wegansit.space/hp_color_laserjet_enterprise_cp4025_service_manualyfnsu.pdfIn PDF document text
    • http://suwefazimim.medianewsonline.com/38495623702.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/68820321079.pdfIn PDF document text
    • http://shmelev.pro/jisukakanovajoweadv0l.pdfIn PDF document text
    • http://kotudekudoges.getenjoyment.net/gst_amendments_for_nov_2020_ipcc.pdfIn PDF document text
    • http://midakurapujif.mypressonline.com/advisory_committee_on_human_radiation_experiments_final_report.pdfIn PDF document text
    • http://legrand-spb.ru/nuxosavaruxuxomogamunncue2.pdfIn PDF document text
    • http://wojurimaxab.mywebcommunity.org/marketing_planning_process_with_example.pdfIn PDF document text
    • http://trikotoria.ru/software_testing_resume_samples_for_3_years_experience_download62aua.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/venunamazozuzo/powerpoint_themes_free_2010.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/92701920030.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56eda80d-acfd-4d87-8c9c-4bb34852ad2a/jikovepivebo.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/bemobagegefesaxemobivu.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/resatanitotifazam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eae6fa82-b3b4-49c6-a99f-9e93201bd361/stata_manual_free_download.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/bansal_classes_maths_notes.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_off0000dbbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBC 5180 bytes
SHA-256: 02ff7d8300ea975f7750e5567b48c3f238d621ef77f4acb10a624ceba4db890e
font_01_sfnt_off0000ed49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED49 10396 bytes
SHA-256: 9c14f90309671dfc61ff8d67f3f9d66a871ae0305b0751e9a1876fa318a04e95

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