Malicious PDF — malware analysis report

Static analysis result for SHA-256 edab5d02e3d9bf0a…

MALICIOUS

PDF

73.4 KB Created: 2020-12-28 22:00:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 649e269cc8ba2e813fbaa398594eb018 SHA-1: b520718b52d6f9f79259a433bbc792bd56b07a74 SHA-256: edab5d02e3d9bf0a56cd687ee1f5f6c87ed75a65c87eeb48ac74d4b12c279f33
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL 'https://trafffi.ru/123?utm_term=www+bpsc+debit+card' is the primary indicator of a phishing or credential harvesting attempt, disguised as a debit card related document. No scripts were extracted, but the PDF structure and embedded URI heuristic suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/123?utm_term=www+bpsc+debit+card PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414501/normal_5fc21d46b2d75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454049/normal_5fbff4291318e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407316/normal_5fdc7e5a4e698.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458413/normal_5fd9a8ff211a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459774/normal_5fa2f4116a18b.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/rovuweraja/maths_literacy_textbook_grade_12.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/nucleophile_and_electrophile.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/don_quijote_personajes.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/kozefodibadasibisuni.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/castle_clash_apk_mod.pdfIn PDF document text
    • https://s3.amazonaws.com/gitipelut/tuxesividapojozegabizo.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/bokaxefedunamekeloguves.pdfIn PDF document text
    • https://s3.amazonaws.com/zolerazowubow/watiwevikana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a1516aa-1610-471e-99e9-bcd5afb4808d/niwasidiruvusuwolaga.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_off0000e3de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3DE 5280 bytes
SHA-256: e088d5b31b7cfd19e8777feccdef44ed09e7caebc3fc5821e88d1c52aa29d35d
font_01_sfnt_off0000f5f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5F2 10320 bytes
SHA-256: 289a784a85e9774850b580749828cd88a27580b24f1c5cf8be8ab370f643ac3c