Malicious PDF — malware analysis report

Static analysis result for SHA-256 f57194bea1c31fe7…

MALICIOUS

PDF

66.1 KB Created: 2020-11-16 12:24:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 85a661f12b308e51007f238ee2602f45 SHA-1: d95b251a4b2618fec385d54251b9735178b0c7d2 SHA-256: f57194bea1c31fe711600b00b8ee01c49625de0b8979ccfba1a82a9b3561a719
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 0.9995

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=tableau+for+dummies+download PDF link annotation
    • https://vodiwisilob.weebly.com/uploads/1/3/2/6/132681054/0c7c961960e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388626/normal_5fa0a7b2d74bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369328/normal_5f99940924d13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383928/normal_5f90c8341e39d.pdfIn PDF document text
    • https://xomowapiwaliv.weebly.com/uploads/1/3/4/0/134000086/wutazo_todimosikovago.pdfIn PDF document text
    • https://lebuwaner.weebly.com/uploads/1/3/4/4/134478239/zaxolejal_pokigude_vasas.pdfIn PDF document text
    • https://sopopubepomexak.weebly.com/uploads/1/3/4/2/134265445/pefitipuxisepo_tekujofabiz_galusog_tavodopur.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/nokiva/tv_show_with_bay_city_rollers.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/hades_kerbecs_wiki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/11bcde49-2388-4d07-b7e2-2674c3d92d6e/divive.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_off0000c86c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC86C 5232 bytes
SHA-256: a5082b2a4cb0935401329b120f66b034c2087fe3744180b136c691d6ec491ee8
font_01_sfnt_off0000da2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA2E 9984 bytes
SHA-256: 0adbc6f91fa660c962869fde6048f127cafe092382dadd829a249336223049b3