Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e257f20ee6ef6ca…

MALICIOUS

PDF

60.6 KB Created: 2020-12-16 15:41:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: e8eacae5cc2fefe74c26a3818a49cf4c SHA-1: cf10f12497a6f08cd0c5c8cb6ca411fd1f5ed07d SHA-256: 0e257f20ee6ef6cac9f06e0f21df91eb89d6c548c1f53327161fb05a11b6411a
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 0.9974

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://trafftec.ru/aws?utm_term=fannie+mae+guidelines+for+bonus+income PDF link annotation
    • https://nujidigazinuwag.weebly.com/uploads/1/3/4/3/134318548/wulatinosadota_rosesireru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374372/normal_5fb2d89b50d9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387410/normal_5fb292a545d7e.pdfIn PDF document text
    • https://gobumireg.weebly.com/uploads/1/3/1/3/131383916/nedoserulu_famabi_sejonamenuxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449627/normal_5fae0c6da50bc.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://static1.squarespace.com/static/5fc38ae5bdb33045eed2d05a/t/5fc65f9c145a8629dc8b7103/1606836125811/guide_for_among_us_ultimate_edition_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/sonutopexaramuf/bolin_family_cemetery.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd381a28516d0827cb7bf6/1606236187275/tiwogufinepibuvisudod.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc7bab61c59a74bd9926936/t/5fc9b19f3ff94c207e06bde6/1607053731673/bomber_jacket_mens_clothing.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_off0000a4af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4AF 5240 bytes
SHA-256: 8f3bb9395eda46abe677b456cdb3642b8a4400d8eed8fbfa008bc2c982b35608
font_01_sfnt_off0000b658.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB658 9784 bytes
SHA-256: 49e511299d66a26456fdbd07faf3ebee3dcab4a74bda2e440c8897f13a48c231
font_02_sfnt_off0000d7e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7E6 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378