Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ceedb97944bbd51…

MALICIOUS

PDF

69.0 KB Created: 2020-12-25 15:58:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: f75639eed6d0e736f51239b521822702 SHA-1: 169b8866202f6abec5beb76013b8783a20887bd3 SHA-256: 9ceedb97944bbd51839e3c00392088da269fb36b4540d43f78b48091957f2cb7
194 Risk Score

Malware Insights

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

The file is a PDF that contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' suggests the document is designed to trick the user into believing they need a password for an archive, a common social engineering tactic to hide malicious content. The ML classifier also strongly flags this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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
  • 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.
  • 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
  • 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://traffine.ru/strik?utm_term=what+does+colonized+mean+in+spanish In PDF document text
    • https://cdn.sqhk.co/tubafejog/RTgcIgd/logoxovanawomutifob.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370071/normal_5f99cdfee7fe3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370051/normal_5fb90b07ea8b2.pdfIn PDF document text
    • https://cdn.sqhk.co/gibuzini/hh3ihfM/starlink_battle_for_atlas_ps4_trophy_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371010/normal_5f88b3ea335f9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d3e2e23-38d1-44f4-825b-19afc17ac1b5/fijepegesunipegomigebaga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c547025e-36e0-4899-ae47-c4b0fdc94af3/mirovizomuja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/227c5760-7715-4db1-8881-b5f880ceca2f/galvek_guide_low_level.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/dog_breeds_a-_z.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b9d5b676-fe42-485e-86cc-41c645f5797e/better_than_tube8.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5214c2d8-7399-4eea-9cc7-d772cf9ee900/86046674252.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/add2d920-5505-4b93-bf7b-76e45df1ffe7/71536046200.pdfIn PDF document text
    • https://s3.amazonaws.com/fomaralunex/employee_manual_template_word.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b814.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB814 5280 bytes
SHA-256: 40c673a9d17cf517c4ed060e430b77a4af2e362206455b0e67a8dbc373de48f8
font_01_sfnt_off0000c9fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9FD 11924 bytes
SHA-256: 7231a465c060e1246831119775ebd1351d7c4c63914c950af1eb637ccfe4c18a
font_02_sfnt_off0000f24f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF24F 16096 bytes
SHA-256: 9853a4a918762215dfcba51349555ff48d39e56332efe18e2f333ca30d8a5b61

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