Malicious PDF — malware analysis report

Static analysis result for SHA-256 74c6c491e64cb8ef…

MALICIOUS

PDF

81.7 KB Created: 2021-04-13 14:29:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 02e2e5d4cc3cfccac9b74d29effc913e SHA-1: c2d7029337b37196c6f11dd3d221c2376c524ca9 SHA-256: 74c6c491e64cb8efe8eb63b9da0595b9aef40f1dc751be55508c492412294b2a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs users to a suspicious URL, likely for phishing purposes. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though truncated, contains text related to the 'Asian Development Bank', reinforcing the phishing lure.

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://dugedepap.ru/strik?utm_term=note+on+asian+development+bank PDF link annotation
    • http://jepisafidezegun.scienceontheweb.net/91234477180.pdfIn PDF document text
    • http://tareworig.mywebcommunity.org/pidek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500189/normal_5fcc385516660.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383327/normal_5fee140f7c7ca.pdfIn PDF document text
    • http://sowipilarow.mygamesonline.org/general_awareness_book_by_arihant.pdfIn PDF document text
    • http://mujetogavafe.22web.org/17850433515.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407066/normal_600167651d999.pdfIn PDF document text
    • http://vegoletox.medianewsonline.com/zijonuzaruwurata.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385847/normal_604f2cdb74bc8.pdfIn PDF document text
    • http://leporabev.mywebcommunity.org/what_is_the_exterior_angle_of_a_regular_polygon_with_30_sides.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374686/normal_601261e3bdd75.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/jipowumat/birilowesowuxen.pdfIn PDF document text
    • https://s3.amazonaws.com/zalisujezajaje/zusoxonujovidamedoge.pdfIn PDF document text
    • http://veriwag.rf.gd/gta_vice_city_speedrun_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/masevewi/form_space_and_order_in_architecture.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/teripi.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_off000102e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102E5 5240 bytes
SHA-256: db15543df668d5166b723ed18a1b311003e5191680a27f3f38404499490ba8f3
font_01_sfnt_off000114b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114B0 11024 bytes
SHA-256: 74961faf2c5d0ec896fbd299508e930db17c508dbbd7d869e747c04427d38e24

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