Malicious PDF — malware analysis report

Static analysis result for SHA-256 9787085daf4c8d71…

MALICIOUS

PDF

264.4 KB Created: 2020-12-13 15:36:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 25f743e1a6c6c621a179821762157d88 SHA-1: 908eb7fcac9d71527dd74f2d05bc08779e3e0ebe SHA-256: 9787085daf4c8d71b0805e59c0987aec68dde401eb1f6267a4305d7bd1b9bb17
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 0.9976

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=indian+baby+boy+images PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4383160/normal_5fce459e0f210.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472783/normal_5fb62cd6121bc.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/kinivetexubomeg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407102/normal_5fccdd51d163e.pdfIn PDF document text
    • https://jabuzowe.weebly.com/uploads/1/3/4/3/134312688/9365990.pdfIn PDF document text
    • https://vojitimene.weebly.com/uploads/1/3/4/5/134596684/5ba642.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384050/normal_5faba3240b2d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_5f8ef044924dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464311/normal_5fa6d9fecc085.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374847/normal_5f8bc11e01cc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377938/normal_5fa4ec4280a9f.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/memul/smooth_operator_bass.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/hotstar_app_older_version.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/disneyland_paris_park_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/rijenumulujaxurivomoru.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_off0003d8ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D8ED 5196 bytes
SHA-256: f76acdc0702a6a19004e212003da1cc859162587f514db19f5fc348c10010156
font_01_sfnt_off0003ea8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EA8C 12632 bytes
SHA-256: 577ef2b29e3a40b4266c34a0a8f53d7f37a095363860db30adcda27d8ff9d25e