Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f2c5689a648b99c…

MALICIOUS

PDF

71.8 KB Created: 2021-03-23 21:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: e3df05352caa5402e4e3d327172c045b SHA-1: c7a0a04d8c83e00687941cc9cfa3f81a8d35f75c SHA-256: 0f2c5689a648b99c643c2bcab861af0a8cb18f97f65ec76d83f9ddfc2424f8d4
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://baarspo.ru/wix?keyword=mill+creek+middle+school+tn+rating PDF link annotation
    • https://cdn.sqhk.co/vimewiki/ghajihh/21780881910.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/Cm9jfWu/13324013923.pdfIn PDF document text
    • https://cdn.sqhk.co/bapuwanuvadi/12rigSG/35359727904.pdfIn PDF document text
    • https://cdn.sqhk.co/tevimuwijile/hghjpjb/apple_sms_notification_ringtone_download.pdfIn PDF document text
    • http://naturebiolog.fun/94375799946mk04n.pdfIn PDF document text
    • http://usesoda.pro/play_life_online_with_friends_freej62xh.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/tesapibebujep/opera_browser_for_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/tugumeb/datasheet_aon_7408.pdfIn PDF document text
    • http://fepufikegag.rf.gd/dependency_injection_in_asp.net_mvc_5_using_unity_ioc_container.pdfIn PDF document text
    • https://s3.amazonaws.com/xupizewuxere/62644751899.pdfIn PDF document text
    • http://maguvotu.rf.gd/68321082486.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/map_of_the_world_oceans_and_seas.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/academic_conference_presentation_ppt_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/59341922519.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/tozamaxivipupomi.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/burma_superstar_cookbook.pdfIn PDF document text
    • https://s3.amazonaws.com/tosevud/kitovowedojew.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/realize_reader_algebra_1_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/is_vizio_reliable.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_off0000d9bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9BD 5424 bytes
SHA-256: cdf48d69d4b56025c29a0b6a3556a1f490172cdfe57fc972bc29fcee7af82ef6
font_01_sfnt_off0000ec0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC0C 11084 bytes
SHA-256: 19ea1aa970c687296309910866299c4909f8d291772983111591282347a01ab9

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