Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc6cc8f45b42de41…

MALICIOUS

PDF

66.8 KB Created: 2020-11-27 15:52:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 9aa208a4e53b388ffd56183ec495b32e SHA-1: 930ac3c00b341b59e9bbec2f2492bf29ef70b5a3 SHA-256: fc6cc8f45b42de413f9169936b482c575b6e25cb0f55b5527e11cc74bae2c755
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 0.9994

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://traffine.ru/strik?utm_term=ideal+gas+worksheet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4485436/normal_5fb76fed392d3.pdfIn PDF document text
    • https://gogipemefa.weebly.com/uploads/1/3/4/4/134471158/fitej_bapuse_wesuwonibejigo_vavojoba.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/090123ff-0398-4c33-8c63-1bcd00189129/tiguroxavuwoxurifa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96424e20-79ca-429f-bfa4-cc2051d72c40/zelda_morrison_porn.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8bda878-ffbb-4127-bf61-3ddc78c89779/pelepepifeworap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b45a9a0-c215-4ba1-99a1-d7a7bf055c19/91920549698.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a10d13e2-8b89-434f-a44a-18ff6f94003c/kasade.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ab964bb-cec1-4abf-8953-2cbdccbedb18/diwowonadozif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a220eee0-8ca0-4295-bdac-d929662a55c6/theme_worksheet_6th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/telugu_balu_movie_bgms.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c06a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC06A 1812 bytes
SHA-256: c321a3b457e54008ff4c1ced298576c45f10e0e07040d4585007548ec2bdbd3d
font_01_sfnt_off0000c915.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC915 5180 bytes
SHA-256: 4f8d269c93015a5378776683f1f2606ae7cc9b3d0d185c2193448fb1ceb0deba
font_02_sfnt_off0000dabd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABD 10164 bytes
SHA-256: 021d09876e3043045ff081401df0aa216304748d9b53658077b424287aa453a0