Malicious PDF — malware analysis report

Static analysis result for SHA-256 098554eaffee8eae…

MALICIOUS

PDF

76.7 KB Created: 2021-03-01 23:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 2aab88a9ed032b9b9bb8c06391b7b9b0 SHA-1: 9eaa1037cccc2be49d9daa567fe20f7fcb43d607 SHA-256: 098554eaffee8eae4c80f224579382da0b32d4f8c415f45b0b0cd79bd559148d
154 Risk Score

Malware Insights

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

This PDF file contains a link to a known malicious redirector, indicating an attempt to phish or deliver malware. The embedded URL, 'https://crophysi.ru/strik?utm_term=how+to+fix+vizio+smart+tv+black+screen', is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attack pattern aimed at redirecting users to a compromised site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/strik?utm_term=how+to+fix+vizio+smart+tv+black+screen In PDF document text
    • http://movasolusid.iblogger.org/cantor_fitzgerald_email_address_format.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/aNgcY2c/50408107717.pdfIn PDF document text
    • https://cdn.sqhk.co/zuronenom/idjrnBb/7_ancient_wonders_of_the_world_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/vagewovupug/EDhdiiz/flights_to_vegas_from_chicago_o_hare.pdfIn PDF document text
    • https://cdn.sqhk.co/bojidokagivi/HrKCied/46518897356.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501770/normal_60116d6daab49.pdfIn PDF document text
    • http://vujejike.iblogger.org/what_is_glacial_acetic_acid.pdfIn PDF document text
    • https://cdn.sqhk.co/mebereserab/bhhgdsK/get_acc_e55_projection_key.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374953/normal_603257185cbdd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426421/normal_5ffae32b615a0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fukefuxatolu.epizy.com/conway_corporation_tv_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/bojolonamupobise.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/bluetooth_software_for_windows_vista_free.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/8337030525.pdfIn PDF document text
    • https://s3.amazonaws.com/rakabexozu/bunny_live_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/69300495619.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/chicago_lake_michigan_salmon_fishing_report.pdfIn PDF document text
    • http://ludumidajite.rf.gd/fupevemesanuxexuj.pdfIn PDF document text
    • https://s3.amazonaws.com/sukedil/43173340599.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_off0000ec03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC03 5460 bytes
SHA-256: 63131c8c65644ec02538eddaee84352f0fbc6fc5ff3d4f40f7062d33bf185362
font_01_sfnt_off0000fea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA2 11296 bytes
SHA-256: 9822dd915a38da9a17ce4d7dbc24859fba2d691f75afcfe8c03c3e92ea1576f1

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