Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e0f34cd05d8ed92…

MALICIOUS

PDF

75.0 KB Created: 2021-05-09 11:02:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2be78fa77c2096e02319a1600e1c9875 SHA-1: b844703fa6daf4b7c08e117764a984e45560519a SHA-256: 0e0f34cd05d8ed92e2c150622118987503edd70cee7dd7834fab5a5c934136dc
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URLs suggest a phishing or malware distribution scheme, likely attempting to trick users into downloading fake printer software. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed for initial access via spearphishing.

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://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/e7134418b9bec8198291559fe241a2a2/retorovimepedot.pdf
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/2bd5475220948974d5e5b3624960a20d/ralogumeribapomaru.pdf
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607a1993a6a8c---rigusujokukikaroxopudefi.pdf
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608954d7d8b39---wewowemipijodoxixuv.pdf
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/621c9176f5d20cea9eb76a242d5b2de9/xelulixilata.pdf
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d344f9b4b1---18466948514.pdf
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/b82faffcadb6ae6de3c7ee0f8412b115/3442918251.pdf
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/1f6lq5b7s9rbt17v8tnraubq4s/petamakukas.pdf
    • https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d19501b9ac---43190299919.pdf
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608ccfeb1fdd9---2478982859.pdf
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608174598b943---vofevufavudukifuzima.pdf
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/3a2bf6daed85d3ee85bf61d4e2a89d36/6982737964.pdf
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16075935eade3a---108682528.pdf
    • http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160777121c0f35---2066747924.pdf
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/1608060a513b47---69976348351.pdf
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/4abf7f310c2c1cab7cbe19d77dc47847/bosos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=canon+pixma+mg2560+printer+software
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e822.bin
3fb51cc46e0a3382e33d9192875e9241a27dbd06ee00d665f70c894bb44d4f0b
pdf-font-stream PDF embedded font (sfnt) at offset 0xE822 5808 bytes
font_01_sfnt_off0000fbef.bin
d49086d3af04bd060ab09fee1842557505546ea9cd349304859f609e60845068
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEF 10176 bytes