Malicious PDF — malware analysis report

Static analysis result for SHA-256 065d6c310c064405…

MALICIOUS

PDF

84.1 KB Created: 2020-12-19 10:48:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce34cc55dcb7156de955cc3a85f8df23 SHA-1: 72188ada2f0f0bbbe611fd78156f1ec193ffd3eb SHA-256: 065d6c310c0644057233966d31b8317f248db14146ec95042920fffa3cf78b7b
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://traffmen.ru/aws?utm_term=gartner+firewall+report'. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/aws?utm_term=gartner+firewall+report
    • https://cdn-cms.f-static.net/uploads/4388819/normal_5fa19250c2678.pdf
    • https://cdn-cms.f-static.net/uploads/4458388/normal_5fd2e85be72ae.pdf
    • https://vojufutevale.weebly.com/uploads/1/3/4/5/134521456/fc4d7b172fe76.pdf
    • https://rujupiben.weebly.com/uploads/1/3/4/8/134852491/7235581.pdf
    • https://kisogegexene.weebly.com/uploads/1/3/4/3/134374262/6fc0b27.pdf
    • https://cdn-cms.f-static.net/uploads/4503692/normal_5fd9b2f502811.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fc6c10104a8c57c1485c1c7/t/5fcb47d19d29b56e4dffa005/1607157715506/soccer_football_prediction_betting_tips.pdf
    • https://static1.squarespace.com/static/5fc6a3179955c744b563435a/t/5fd65ed0acac596b0cb9d890/1607884497524/bahubali_movie_video_telugu.pdf
    • https://uploads.strikinglycdn.com/files/5f2df4a4-dc3e-4746-9f68-060ad18d463e/kudupefogoloroxaxut.pdf
    • https://uploads.strikinglycdn.com/files/21300618-4734-4720-a3c4-9eb109dde744/sanosiva.pdf
    • https://uploads.strikinglycdn.com/files/faeb001f-8d36-49a5-b1c6-ae70aa16daf2/vofazale.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_off0000fb6b.bin
4d77b1ba4d4bce163b733f787fab38d2bf34f5a520041ff086c5bd9d5275229f
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB6B 5608 bytes
font_01_sfnt_off00010ea9.bin
990620dd7f52cc4c613d307ecf14a9b76daff3a12f103fc63de1e066fa4c7023
pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA9 4840 bytes
font_02_sfnt_off00011f49.bin
d671b2c201ee2bc21f614eab7981a1d73466727e38c6a1fe56ab146a12920410
pdf-font-stream PDF embedded font (sfnt) at offset 0x11F49 11084 bytes