Malicious PDF — malware analysis report

Static analysis result for SHA-256 96825cd6aa6feee8…

MALICIOUS

PDF

85.4 KB Created: 2020-12-06 14:13:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 98f9f136425b6f813e3a485dbfa99d74 SHA-1: 95be3f01bfd99738c15b656ef5c0cfd5e02e4f3c SHA-256: 96825cd6aa6feee8443a6cdfa0dd73b6e0eada9bc2b280572f87e1e9710f0983
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://trafftec.ru/strik?utm_term=what+to+write+for+esl+student+evaluations PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379049/normal_5fab74f064dcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385613/normal_5fc28e0522d1d.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/bewibiwat/thrivex_survival_battlegrounds_royale_game.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/android_studio_adb._exe_start_server_failed.pdfIn PDF document text
    • https://s3.amazonaws.com/vexosafugunu/gekovitam.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/python_datetime_parse_format.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/iphone_emoji_keyboard_premium_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/xiwukuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/lonozote/47228702055.pdfIn PDF document text
    • https://s3.amazonaws.com/xifabilejilab/livro_velhice_aspectos_biopsicossociais.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/business_intelligence_training.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/4900656184.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86550887-6209-4a33-8bf8-1b930dcb7b9d/zojejok.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/arcane_trickster_build.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_off00010e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2A 5160 bytes
SHA-256: 885f887b350b5d7c5a3f0c84f41f4c9e830aed6e1dc79472bcf6a2a3e7d57350
font_01_sfnt_off00011fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FCC 11852 bytes
SHA-256: d7e9e50abf08bdad086ac86e8e9ae26aeaf78932ac49df4330346c42a83ca790