Malicious PDF — malware analysis report

Static analysis result for SHA-256 8227cfd31115cf1a…

MALICIOUS

PDF

77.2 KB Created: 2021-03-08 10:32:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 0f45aca2178228df82c58b84fa16a102 SHA-1: 535ef1e1967cd295a2ddeed89e6aed961455972a SHA-256: 8227cfd31115cf1a450f52cf5e7b6d2d35b4144eccfbe4482fbb6b7559abe678
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to 'zajinet.ru', which is likely a malicious domain used for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to a Canon printer error code, suggesting a lure to trick users into clicking the malicious link.

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://zajinet.ru/strik?utm_term=canon+e510+error+code+p07 PDF link annotation
    • http://kisiguvawatabom.22web.org/tigobegafafo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415065/normal_5fe3615339444.pdfIn PDF document text
    • http://datekal.22web.org/cursive_writing_worksheets_south_africa.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/ihkjcko/xufafopifug.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371553/normal_6005e5b4bd360.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464311/normal_60094d8d8e07c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379987/normal_5ff80cbc090f0.pdfIn PDF document text
    • http://posalak.22web.org/43067557673.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/cBtageh/commuter_bike_clipless_pedals.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393026/normal_5ff1bc9765d3c.pdfIn PDF document text
    • http://solavopuna.22web.org/42804740587.pdfIn PDF document text
    • https://cdn.sqhk.co/gorokipo/uZe3jaA/head_basketball_download_apk.pdfIn PDF document text
    • http://sabudunujo.22web.org/ms_driver_license_renewal_appointment.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
    • http://rakumutebita.epizy.com/arcularius_ranch_guide_service.pdfIn PDF document text
    • http://gakifok.rf.gd/12003457082.pdfIn PDF document text
    • http://bovifuxabobi.epizy.com/93378557893.pdfIn PDF document text
    • http://gepopimasirepav.rf.gd/ketogenic_diet_lyle.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_off0000e526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE526 4936 bytes
SHA-256: 636004bce078ecb51193ec0740f93e5cda080f8347f6bd025533b96220f737ed
font_01_sfnt_off0000f600.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF600 10292 bytes
SHA-256: 25bdb32d2331a3107645d4ef1defdc1c26b2d547bc3bd708232116cb6b77642d
font_02_sfnt_off00011955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11955 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.