Malicious PDF — malware analysis report

Static analysis result for SHA-256 486f5c504dcfe03b…

MALICIOUS

PDF

72.0 KB Created: 2021-02-20 18:08:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0cedf962ddb0babe4d4fae3d6808c9d3 SHA-1: 549fb931f64d91ac15719b63b8d4d0d7e3dea5de SHA-256: 486f5c504dcfe03b00265d0cef4d4e5b4ca672bc94be08c35be0097beba7ed85
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-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://leonvi.ru/123?utm_term=acoustic+guitar+lessons+near+me PDF link annotation
    • https://sinipipa.weebly.com/uploads/1/3/0/8/130874509/nizejukozow-vagevuv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454575/normal_6000ff1c4351d.pdfIn PDF document text
    • https://madoguwulivusi.weebly.com/uploads/1/3/0/7/130775056/cec93af.pdfIn PDF document text
    • https://gajifawegux.weebly.com/uploads/1/3/4/6/134649352/77070502.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470017/normal_60172e879ff99.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487905/normal_6026ddcf63919.pdfIn PDF document text
    • https://cdn.sqhk.co/resesexiraf/cjgGgiz/89197814854.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475853/normal_600b059185aba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450351/normal_5fff623868980.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/jefazaxal/whirlpool_french_door_refrigerator_freezer_not_cooling.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/fosulun.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/telefon_mobil_alcatel_2008g_manual.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_off0000d190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD190 4992 bytes
SHA-256: 170916b110d61bb8bdb584ae72f1a02fc22b0bc88964f43684abca8f492cafe9
font_01_sfnt_off0000e263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE263 10192 bytes
SHA-256: 58d2ed88c859d76efbdbf6e111d041a69f6e36a104a8fa94d870614be8fa8477
font_02_sfnt_off00010515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10515 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3