Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f195f216d181ec0…

MALICIOUS

PDF

75.6 KB Created: 2021-02-17 06:41:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 57dff245bda07ccd102ff751212fc4c8 SHA-1: 5f4f24d72984877d4e3b92077b43f4998998c704 SHA-256: 8f195f216d181ec098691c4a5ea76b282d199dd11ede99788448d7856df67d20
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 0.9997

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://baarspo.ru/wix?keyword=animal+basic+needs+worksheets PDF link annotation
    • https://cdn.sqhk.co/wujakegu/hjijV1i/tiled_map_editor_tutorial_deutsch.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/qv03Phj/51129548477.pdfIn PDF document text
    • http://lenudes.com/minecraft_exploration_mods_1._12._2650di.pdfIn PDF document text
    • https://cdn.sqhk.co/jofutagi/dlMKifN/jidurojizazodulopuxa.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/iNVvHFt/43013700973.pdfIn PDF document text
    • http://help-lnstagramcopyrights-verify.com/kimabonevdx7j.pdfIn PDF document text
    • http://begetus11ppz.xyz/blue_and_silver_balloons_background6bwc3.pdfIn PDF document text
    • http://teachersaid.fun/catholic_bible_concordance_freeuj2hd.pdfIn PDF document text
    • http://fbcopyright-center.com/refomiwari3y3i.pdfIn PDF document text
    • http://pasetbs.xyz/naruto_vs_bleachcmtnq.pdfIn PDF document text
    • http://natikolom.site/17964608464f2kxp.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/tadevewuju/73160483075.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/bulmers_light_nutritional_information.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/best_text_messaging_app_for_android_tablet.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/35096630630.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/bach_cello_suite_2_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/pct_applicant_s_guide_national_phase_thailand.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/77051083395.pdfIn PDF document text
    • https://s3.amazonaws.com/nutanigonu/59715313879.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/style_guide_for_40_year_old_man.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_off0000eba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA4 5464 bytes
SHA-256: 0d0021c7b5a6813059399d98a8d8e459ae07d67fbecc60f991f561a710a39d92
font_01_sfnt_off0000fe16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE16 10208 bytes
SHA-256: 578bdb71d8fa19ba53f9c9747333ae74921e1449327979134c9b2fbe6861ec8b

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