Malicious PDF — malware analysis report

Static analysis result for SHA-256 d35e36901f919e0a…

MALICIOUS

PDF

65.8 KB Created: 2020-12-30 10:33:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 11b423f3956b903c86caaac36a0efce4 SHA-1: 3030be76ac4b0f4250f5db5c8b150b394ce51509 SHA-256: d35e36901f919e0ab3e9238efa98cfe8ea212b57db5f2b22e08c20836bbad629
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely intended for credential harvesting or malware delivery. The document body, though heavily obfuscated, suggests a lure related to 'New York travel guide pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=new+york+travel+guide+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368240/normal_5f8f06aa3f70d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380691/normal_5fdb36aa8edc7.pdfIn PDF document text
    • https://cdn.sqhk.co/muzexeragod/jRjG9gh/61521323511.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372696/normal_5fdc43dc5add3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/16773d83-3b63-494a-83e3-06af9dead8de/48346821487.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfa2f345-3e08-4ffa-b3df-dd939b116634/xugikajipikijujujimafebeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a394fff-5c78-4ee8-8c6e-bc8c01e90ec4/vovokagafemekatevubena.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabisura/zovedejifuzugiroromapo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e977ddf-08ce-4e9c-afef-71da12b71514/39161291015.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d7b7ca4-7c79-433c-8e56-ea897cff0792/fire_chief_wood_furnace_fc1000.pdfIn PDF document text
    • https://s3.amazonaws.com/dikobepibelun/39142049540.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/23963564376.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6999434b-24ec-47b4-bf96-b59b195cf22f/50247085212.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_off0000c428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC428 5316 bytes
SHA-256: 1fa767f40787e052cc8dab061fe134bd52646a234f62129802a30c31a7b46bba
font_01_sfnt_off0000d679.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD679 10668 bytes
SHA-256: 8e5a80a7af3cf0d17ebf5a60939d53ef6d732dd3775c4c33bdc1542bb8360efb