Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc3941530d7ddaa6…

MALICIOUS

PDF

68.6 KB Created: 2021-02-17 02:20:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: e3b6a8ceb6c5269901a24ae0cb96ab69 SHA-1: 90b0053e484d1c854b591c3ee9083afbf0208c08 SHA-256: fc3941530d7ddaa6dc7d980705cdd5ed15ea900da81fbef179dc1f3473a336a5
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-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://crophysi.ru/strik?utm_term=toyota+camry+se+sedan+4d PDF link annotation
    • http://varietystore.website/9904050586907flj.pdfIn PDF document text
    • http://all-system7.xyz/minecraft_pe_apk_free_download_latest_version_0.16.0dwljb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414152/normal_600ffc6ac133f.pdfIn PDF document text
    • https://cdn.sqhk.co/samanugutu/ejcSkbj/pogisiperamopanapis.pdfIn PDF document text
    • https://cdn.sqhk.co/venifirub/YtgiI7f/muresawadutosajar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367621/normal_5fed1e20921d0.pdfIn PDF document text
    • https://cdn.sqhk.co/badaxiloru/hjcWifb/notepad_plus_plus_linux.pdfIn PDF document text
    • http://fashion-deals.xyz/sovelugoratikufopukenavos2e3qd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389801/normal_5ff44a99016ba.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/dUdnRjb/tetufawotu.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/zamuriza/coschedule_free_template.pdfIn PDF document text
    • https://s3.amazonaws.com/lezerawe/20455893101.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/limonafe.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/a_love_s_whatsapp_status.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/dictionary_english_english.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_off0000d038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD038 5192 bytes
SHA-256: 1e6d6a849cae0088780e8c62f1c339872471db88de1dab114f54b63b35592f45
font_01_sfnt_off0000e1d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1D9 10628 bytes
SHA-256: 96be351025df25b3b835963d9307db862c68f8b36b3f2122bdd28ef2049edd8f