Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f1c68685d3b61e6…

MALICIOUS

PDF

122.7 KB Created: 2020-11-24 02:11:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 403c41423a668160b70c32fd28a4a807 SHA-1: 1738fc96174686603d273c380a9cd41ff1107706 SHA-256: 5f1c68685d3b61e6db6a614aca818a0878e70323a5c1bd7e4042385e8fa54e1d
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains an embedded URL that leads to a suspicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. No scripts were extracted, but the PDF structure and embedded URI suggest a social engineering attempt.

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://traffnew.ru/strik?utm_term=pathfinder+fighter+optimization+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367617/normal_5fa344b571da1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368756/normal_5f88bca2a441b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5fa04cbbaeedf.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/22326824-867f-4e11-b305-d5ebad351356/24641748403.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bdefdef-0982-4341-b0c6-c7acfa2dd2fe/77420603977.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e377f451-8d8a-4ab7-921a-d3143a0e03d3/bavimenuruvujevepat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e619601-1fbe-43de-9dec-f0a116a30744/locke_and_key_vol_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccfb3a11-696c-40b8-8ae9-faf79657651a/32565898071.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5c3352c4-ea8b-4669-85ec-5734a2382e35/disur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3448734b-4187-434d-9fb7-fa05861c2e4c/space_exploration_bsa_merit_badge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a596849-ef74-4d60-8667-bf0f5660f7d9/free_robux_copy_and_paste.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1cc54f68-5e52-40da-9b5d-abddde658198/hiren_10.5_iso_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f025ce17-b05e-40a5-bdab-9e00709f9fe3/paxukagekanuxiverigizis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4ec072f-6089-48a0-8680-b22b8a264638/pokemon_light_platinum_nds_rom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/085653de-aa54-41e7-95da-3367ba795285/english_grammar_workbook_for_beginners.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_off0001a5ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5ED 5296 bytes
SHA-256: 6d49d71765e40e27a61f56cc7fed39d542b875580ce62f04a78d49b096f91a2c
font_01_sfnt_off0001b7d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B7D3 11032 bytes
SHA-256: 5aaf2e0232289f51be727e89ca534c6d39369677fdfa0de335c01b73429b879c

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