Malicious PDF — malware analysis report

Static analysis result for SHA-256 458aaeb0f492dcfe…

MALICIOUS

PDF

103.5 KB Created: 2021-03-22 00:16:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d369748e16a40a82749ad85e05a5a501 SHA-1: b7bfbb2d5c7fb6b999c9543dfe4fd884d4ac2ae6 SHA-256: 458aaeb0f492dcfe6211d31d0c4ee8d98a7875aeab2beaf83ca466442988ab66
136 Risk Score

Malware Insights

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

The PDF contains a heuristic indicating it's a password-protected archive lure, suggesting it's designed to trick users into decrypting a malicious payload. The embedded URL, 'https://lozipotod.ru/wix?keyword=account.live.com%252Facsr+from+a+browser+to+reset+your+password', strongly suggests a phishing attempt related to account recovery. ClamAV also detected this file as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://lozipotod.ru/wix?keyword=account.live.com%252Facsr+from+a+browser+to+reset+your+password
    • https://static.s123-cdn-static.com/uploads/4501231/normal_60078a9b2eae3.pdf
    • https://cdn.sqhk.co/xagogudexo/ijfLNnh/tagalog_bible_application_free.pdf
    • https://cdn.sqhk.co/tajiwikiter/Nk78agh/mosijoviz.pdf
    • https://static.s123-cdn-static.com/uploads/4474978/normal_5fe4eeb6d3030.pdf
    • http://pewekelexu.mygamesonline.org/bronchodilators_pharmacology.pdf
    • http://bezerojiw.scienceontheweb.net/24555629575.pdf
    • https://cdn-cms.f-static.net/uploads/4372753/normal_5fd870bce0e89.pdf
    • https://pejedakava.weebly.com/uploads/1/3/1/4/131453393/5970291.pdf
    • http://rasezatoxefu.mygamesonline.org/17531109076.pdf
    • https://cdn-cms.f-static.net/uploads/4418381/normal_603065f841a01.pdf
    • https://cdn-cms.f-static.net/uploads/4413705/normal_6049e71486434.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8d41f927-7691-4e05-b92e-7efaaed13868/jozizojizuwajapavafuxe.pdf
    • https://uploads.strikinglycdn.com/files/2a579bc9-e0ae-4527-adf2-d23c981d595c/vuzefewaseboko.pdf
    • http://wujagenak.atwebpages.com/tanatologia_veterinaria.pdf
    • https://uploads.strikinglycdn.com/files/dbd6a602-1d3c-49b2-a99c-fb629440f57e/what_are_the_lessons_from_the_book_of_ruth.pdf
    • https://uploads.strikinglycdn.com/files/9b268f3f-3f34-4f82-9e7c-a8fa200a2ac0/vetakijiwojuwavitogef.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_off000155c5.bin
5231d5c2c4d5cc9efa468f51a716512f8d15471a7a767f5a8dda8ee6619fbf00
pdf-font-stream PDF embedded font (sfnt) at offset 0x155C5 5752 bytes
font_01_sfnt_off0001696b.bin
665dae8c86234130955087614d5ad2ecc887056a3a5f4d33f62aff14c52e9963
pdf-font-stream PDF embedded font (sfnt) at offset 0x1696B 11604 bytes