Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e96a95e5d74a0e0…

MALICIOUS

PDF

67.4 KB Created: 2020-11-30 21:03:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 798b78bc6ade35c904edb41eddb1d744 SHA-1: 223f86133bda2b64ccf017d53bc5c078b48857ff SHA-256: 2e96a95e5d74a0e033e9ce4abf0da1d377bcee79d77c401a499fe1f68baa9a2c
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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/123?utm_term=industrial+sewing+machine+repair+los+angeles In PDF document text
    • https://cdn-cms.f-static.net/uploads/4379736/normal_5fae7eb2cbe5e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389805/normal_5fa6fbd22d7fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366665/normal_5fa8d836a6b97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365546/normal_5f8efa932cd47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450639/normal_5fa94eac99061.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/12221861743.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/simple_gerunds_exercises_with_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18f8d0a2757459be7919f/t/5fc42f8a9d79364840127763/1606692746462/dungeons_and_dragons_monster_manual_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e701bda9c57a97be38be/t/5fc478463c02f22b9d9c2cf0/1606711372629/cannot_install_kingroot_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2ac18a3bf4b14abb478a5/t/5fc4cbb73c02f22b9da3bf2d/1606732744769/83367487315.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4d38d6d-bcf7-4278-96f3-607ac5ec7361/72861808641.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAA4 5516 bytes
SHA-256: faf867e9da37015c7e060b8e10035ec33d5f5e0a2d728e2127941812b3abb227
font_01_sfnt_off0000dd49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD49 10372 bytes
SHA-256: 4f2b2f1fddaa99da1e19c5125aa8ec1731a14424ca4cbab2e64aecfedabe7a90