Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d7d0f22978ba375…

MALICIOUS

PDF

80.8 KB Created: 2021-01-12 01:44:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6f6df3f76c7ce53aa7d8dc1dc5b27b93 SHA-1: 7750bebb9f8630678073b36f33446331a8dc86cf SHA-256: 9d7d0f22978ba375b573d6e1b3c3c49b3705bb92090d1ded0c6643f68b432bc5
96 Risk Score

Malware Insights

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

The PDF contains an external URI pointing to a URL associated with 'free psn codes', a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://traffnew.ru/123?utm_term=free+psn+codes+no+human+verification+2020 PDF link annotation
    • https://cdn.sqhk.co/simixejazir/djiifig/subway_surfers_high_score_cheat.pdfIn PDF document text
    • https://site-1085087.mozfiles.com/files/1085087/guidesman_flashlight_4000_lumens.pdfIn PDF document text
    • https://site-1176903.mozfiles.com/files/1176903/bedotapuker.pdfIn PDF document text
    • https://cdn.sqhk.co/mekizojo/gjHjaLv/91644008384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374986/normal_5fd978df6afb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409813/normal_5fad147bbcddf.pdfIn PDF document text
    • https://site-1178336.mozfiles.com/files/1178336/7089423865.pdfIn PDF document text
    • https://site-1174433.mozfiles.com/files/1174433/vexation_of_spirit_meaning.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/vizegemawokaxe/66115624368.pdfIn PDF document text
    • https://s3.amazonaws.com/suzixegazunow/court_case_information_online_virginia.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_off0000e381.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE381 5652 bytes
SHA-256: 4af234a46ccb4380807d059c5d2f45dd519e01726d52222db2c24637523ce863
font_01_sfnt_off0000f698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF698 12288 bytes
SHA-256: 3b3c2499a9079dfa897a169e2181c32a6cb5d72e27d0f488b9fc1c44b635eebb
font_02_sfnt_off000120ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120AC 16164 bytes
SHA-256: 0889cdca0fd1e23adf6ccb7b6102a3c548aefad94c4301a7ff6ee23e03fb4a72