Malicious PDF — malware analysis report

Static analysis result for SHA-256 693bf503a7aedd48…

MALICIOUS

PDF

76.8 KB Created: 2021-03-16 03:19:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dbe9904231df010eaf954985ee09daa SHA-1: cee5ac3a425a9bdbff3f0af4605278e51ac40b65 SHA-256: 693bf503a7aedd4810b88603ad4c9b2bc51c572b8fc2aa2a3e5c9b022a4b2618
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URL pointing to a malicious domain, likely intended to trick the user into downloading further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the overall structure suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/wix?keyword=sungale+digital+photo+frame+manual
    • https://cdn.sqhk.co/ximirujusuxo/jidheDG/devojep.pdf
    • https://cdn-cms.f-static.net/uploads/4410985/normal_603c2dd15c457.pdf
    • https://cdn-cms.f-static.net/uploads/4452593/normal_600bf5c937954.pdf
    • https://static.s123-cdn-static.com/uploads/4484612/normal_5ff929cbc35a2.pdf
    • https://cdn-cms.f-static.net/uploads/4473640/normal_6021bdf15ed5c.pdf
    • http://limaxinsto.xyz/how_much_for_nasm_certificationzxx6o.pdf
    • https://static.s123-cdn-static.com/uploads/4485156/normal_5ffcdb6a7df73.pdf
    • https://cdn-cms.f-static.net/uploads/4449990/normal_60338a7889efd.pdf
    • https://static.s123-cdn-static.com/uploads/4365613/normal_5ffde250f181b.pdf
    • https://cdn.sqhk.co/baxotonad/fNjj2ic/funerusijeli.pdf
    • https://static.s123-cdn-static.com/uploads/4374189/normal_6002992907c58.pdf
    • http://classkaod.ru/56990197697z99yk.pdf
    • https://static.s123-cdn-static.com/uploads/4501509/normal_5ff5f041a322f.pdf
    • https://static.s123-cdn-static.com/uploads/4454682/normal_5fe1155c761e2.pdf
    • https://cdn-cms.f-static.net/uploads/4371543/normal_603dcbc23d4cd.pdf
    • https://cdn.sqhk.co/sipebililofo/jdZiejA/fedevo.pdf
    • https://cdn-cms.f-static.net/uploads/4445334/normal_604f5d99a3a19.pdf
    • https://cdn.sqhk.co/dukoredod/gYjhijd/nickelodeon_time_capsule_death_grips.pdf
    • https://cdn-cms.f-static.net/uploads/4391024/normal_602b3421262e9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fuvituze.epizy.com/whatsapp_video_calling_new_version_2016.pdf
    • http://kemexulirejaror.rf.gd/how_to_buy_stocks_pre_market_etrade.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f01e.bin
7f38a05d851378edc24eaf84c69bab8153774b96c144ff21f0b3461b575a33f0
pdf-font-stream PDF embedded font (sfnt) at offset 0xF01E 5380 bytes
font_01_sfnt_off00010241.bin
7e7dd4320a6fd432a82f7deedff0258bd28bdf32385c9889cd00c09a908ad016
pdf-font-stream PDF embedded font (sfnt) at offset 0x10241 10428 bytes