Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6e4cbedee0eeef…

MALICIOUS

PDF

78.7 KB Created: 2021-03-15 00:33:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d6dab1ea1bc04924b7868fd8a533278 SHA-1: 98413175c4404848fbd6551ed3c06efbd0f40dce SHA-256: 0e6e4cbedee0eeef08fa49f4cfa39570cbabd7fba7f55dae6344b83fa814e3d5
96 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high heuristic score. It contains an embedded URL pointing to 'zajinet.ru', which is likely used to deliver a secondary payload or redirect the user to a phishing site. No scripts were extracted, but the PDF structure and embedded URI suggest a phishing or malware delivery attempt.

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=somewhere+over+the+rainbow+ukulele+fingerpicking+tabs
    • http://lojotiwutorolad.22web.org/codicil_to_a_will_template_ontario.pdf
    • http://winoorama.website/formato_de_incapacidad_del_imss_edit2869x.pdf
    • http://lanurekomi.22web.org/poranijubagosulot.pdf
    • http://eduha.online/how_to_clean_samsung_dishwasher_model_dw80j3020usefktb.pdf
    • https://negofajosodin.weebly.com/uploads/1/3/5/3/135314147/fakokap.pdf
    • https://static.s123-cdn-static.com/uploads/4453142/normal_5fe3053644076.pdf
    • http://lightly.store/gotevotitunufemhpiav.pdf
    • https://static.s123-cdn-static.com/uploads/4474448/normal_5ff6d52e1f81c.pdf
    • https://static.s123-cdn-static.com/uploads/4489724/normal_60021d59a2145.pdf
    • https://genebametujo.weebly.com/uploads/1/3/4/9/134904617/lubalot.pdf
    • https://static.s123-cdn-static.com/uploads/4377391/normal_5ffa3d9523a9a.pdf
    • http://shoop-fo.ru/la_metamorfosis_franz_kafka_paginas9eqvk.pdf
    • https://tekopazaxalar.weebly.com/uploads/1/3/4/3/134348639/f37ae0f495f036.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://tolimimagag.epizy.com/samsung_un24h4500af_bluetooth.pdf
    • http://vutakeba.epizy.com/powagiwixedimifawubovan.pdf
    • http://zopumukujo.epizy.com/73765072322.pdf
    • http://pakekaririwofas.rf.gd/pajaven.pdf
    • http://bojilukirifep.rf.gd/93222256930.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e469.bin
a6e1ceae6e49fa8949547c11f5ce6155727c56df8b2839bc55861535eb402d35
pdf-font-stream PDF embedded font (sfnt) at offset 0xE469 5768 bytes
font_01_sfnt_off0000f7f3.bin
8868e42c6ae243d5d1cd4565ea31e2d597f3a559995764ca84209f88cae3737b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F3 10744 bytes
font_02_sfnt_off00011ce9.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE9 4324 bytes