Malicious PDF — malware analysis report

Static analysis result for SHA-256 7077b9d22ce316f2…

MALICIOUS

PDF

73.7 KB Created: 2021-04-22 23:06:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5883a414ca77daea40f5768086445e45 SHA-1: d6cefd61f87533941bf88c8cfcb3929c7e4bfaec SHA-256: 7077b9d22ce316f2d125f8d3a5f2a074ff817d9827423bc01e8bd13e1f9502ab
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, https://vilenefex.ru/strik?utm_term=what+is+the+wsj+prime+rate+now, suggests a phishing or scam attempt by masquerading as financial news. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely intended to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=what+is+the+wsj+prime+rate+now
    • http://shtampshop.ru/xetixatigafuwisojomendp01y.pdf
    • http://mujabelor.mywebcommunity.org/death_note_live_action_reviews.pdf
    • http://leafester.online/gisemotanosuwerunatowegu09bqm.pdf
    • http://copyright-supporthelp.com/78087237446rm1ti.pdf
    • https://cdn-cms.f-static.net/uploads/4453342/normal_606c375e25fae.pdf
    • http://tigafik.mygamesonline.org/59650273470.pdf
    • http://goladelexugezi.sportsontheweb.net/taleguwotelugedas.pdf
    • http://lafutib.sportsontheweb.net/73604389140.pdf
    • http://sokobumoxagug.scienceontheweb.net/hoerner_aerodynamic_drag.pdf
    • http://womenit.space/why_isnt_my_washing_machine_drum_turning8inja.pdf
    • http://nubolutlion.xyz/cost_to_replace_trane_heat_exchangerkd00x.pdf
    • http://poguzozod.sportsontheweb.net/zixomidugunik.pdf
    • http://pikegupima.medianewsonline.com/kulagobezib.pdf
    • http://wedasuf.getenjoyment.net/dnd_5e_forge_cleric.pdf
    • http://secret-empire.ru/oasis_academy_bristol_school_uniformhupb8.pdf
    • http://gifinibufenatar.medianewsonline.com/bihar_police_si_syllabus_2020_download.pdf
    • https://cdn-cms.f-static.net/uploads/4385880/normal_6067f3f5123bf.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bumurulepowele.myartsonline.com/18654962020.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_off0000e05c.bin
89b06f51a2d50bf940a4ad539d208deeaa3fc50c4a3b5e53d6333a44b4109430		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE05C 5208 bytes
font_01_sfnt_off0000f206.bin
f2f1111ad348acd11aa4a2f69fdb8cc5a75dbdf38a04713589d364b649a01d13		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF206 11772 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.