Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e95408644934148…

MALICIOUS

PDF

72.2 KB Created: 2021-02-17 21:43:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fdcd972701616bd5cbf64aa2492a163b SHA-1: 40f45c79dd725977bf7649da0ce18b338472a31c SHA-256: 9e954086449341485a27f98127fafd2aac8b7867ece8c34cda22b481f5a4e9b1
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 0.9971

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://jottigo.ru/strik?utm_term=vizio+e601i-a3e+stand PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4501810/normal_5ff59f56588e1.pdfIn PDF document text
    • https://cdn.sqhk.co/monazaxumol/6Fjatgc/mejexomoxazini.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499633/normal_600753f76e0e5.pdfIn PDF document text
    • http://clientesdkb.com/56510968576us4xz.pdfIn PDF document text
    • https://cdn.sqhk.co/futevanu/hdhdziD/switch_pro_controller_charging_time.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390366/normal_601e42fd822a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445338/normal_601ad8412f479.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/vexeliku/zawefirotoxevakilenegisu.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/37626266439.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_off0000d096.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD096 5036 bytes
SHA-256: 7f7b5e9997f1c65c0e9c67a0178d29467c0668ba6216744265a2d883d88e6a2d
font_01_sfnt_off0000e1cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1CC 10720 bytes
SHA-256: f7b2819fdf0913016d18792c6b31eaf2f1821201e5cc3b83eb8d8ac78d33154b
font_02_sfnt_off00010675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10675 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f