Malicious PDF — malware analysis report

Static analysis result for SHA-256 36ac23216a870e48…

MALICIOUS

PDF

72.5 KB Created: 2020-12-02 13:49:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f08224337b835c1d67ad31d539350f11 SHA-1: deedcb4059e8db8308ea64125e53882f811da3d1 SHA-256: 36ac23216a870e48c738642fe7e3300de5488cb6261e1d93f140e8e4849a9262
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 0.9997

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://trafficel.ru/strik?utm_term=fighting+against+parental+alienation PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365657/normal_5f9cf1ecf0df5.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://s3.amazonaws.com/penefelomiju/12648787453.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/50494874843.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/attic_radiant_barrier_fact_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e147ef7-d8d5-4c34-b643-2b1a6da70c05/21323735327.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa1a7e64-a199-4ed2-a0cd-c3ca3ebdffcb/mosin_nagant_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/jinja2_vs_django_template.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/gajajip.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/dejavujon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3ed71d6-0f37-4a1b-9549-3f61fea824f0/2455573695.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2cc73821-0d33-4622-ae58-304983fc2daa/dungeons_and_dragons_5th_edition_dungeon_masters_guide.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_off0000d411.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD411 4824 bytes
SHA-256: 341b40992b6e37c96473b954bd703ae5b8e4de3cc6c0bef25b01b7cfd1ac00ee
font_01_sfnt_off0000e464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE464 9992 bytes
SHA-256: 228bd9fb44a334855063566e5eb4869eb772b4dcacf71087fe615c37db574c18
font_02_sfnt_off00010689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10689 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34