Malicious PDF — malware analysis report

Static analysis result for SHA-256 194764607e15973d…

MALICIOUS

PDF

64.4 KB Created: 2020-12-02 16:53:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 53ee1edab40bd03892df03139f59db22 SHA-1: d281d1d7c3cc03a8663668e041ed9fcfee29e9df SHA-256: 194764607e15973d86cf18e8d1a5d619d107b6e6c5baa334e433913b73f86236
154 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 routes users through malicious redirector infrastructure. 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://gettraff.ru/strik?utm_term=mini+ten+frames+pdf In PDF document text
    • https://sufimaxunexex.weebly.com/uploads/1/3/4/3/134345405/f8b74dd.pdfIn PDF document text
    • https://rubuvewoxuvima.weebly.com/uploads/1/3/4/8/134873715/nibowavovuzem-gogovemezedi-lojisatamidu-xosef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412895/normal_5f98ba98b8c1f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/11bb63f6-5e1a-4165-a0e0-761c6b25e1c2/suxizepax.pdfIn PDF document text
    • https://s3.amazonaws.com/lijulijowivaze/kekode.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/49453547766.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39a8aec6-2744-4685-b2f0-0262e201fc91/mometamax_vs_otomax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cd4da6ae-366e-4962-8792-77eaf23c9ac6/wiseburn_child_development_center.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c14f5266-55dc-4516-9228-bf92036ff205/vusiwutuwonuze.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/doloponuganawow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3074d4fd-3ade-4651-bdc9-d189e4eecc6a/cast_of_the_real_mccoys_tv_show.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4e9e173fb5383b98b965/1606373023381/giwuxigudiwazebofet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1875bf0e-a141-4418-a614-2dbb03c9ecb1/32133533722.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ba3b0a2757459be1f9cb/t/5fc0ffa95147b1480457448f/1606483883363/british_army_ranks_napoleonic_wars.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files2/purizo.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_off0000b4ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4FF 4840 bytes
SHA-256: 603ff81d02a158e27107c607ee44e368466348c1831f6668abd3fee9314d2c9a
font_01_sfnt_off0000c54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC54A 9760 bytes
SHA-256: ca034ea90b6891abe2d2346355acbef7af06d1e2a34bde61c77e24249060bfc2
font_02_sfnt_off0000e6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3