Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c32fd9064c1435f…

MALICIOUS

PDF

76.2 KB Created: 2021-04-05 05:03:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 474f284a7dd97aa9ac0d098cf50e520c SHA-1: 5c58d4e11698b4d82933dca45e8dd29c8954f076 SHA-256: 0c32fd9064c1435fddad5831e120fe1b3a503d37d48f3c558cc175f36361aee8
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to host malicious content or phishing pages. The document body, though heavily obfuscated, contains text that appears to be a lure related to the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jumiwimov.ru/wix?keyword=uppers+downers+all+arounders+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4491450/normal_604f37fdeee79.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380867/normal_6038f0b6c62a7.pdfIn PDF document text
    • http://jojidasusesot.sportsontheweb.net/11667029949.pdfIn PDF document text
    • http://tojugurorozusu.22web.org/api_documentation_template_microsoft_word.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499282/normal_601746f61d1d7.pdfIn PDF document text
    • http://jijexuvekenim.iblogger.org/game_offline_2019_android.pdfIn PDF document text
    • http://jajuwupi.22web.org/7566288649.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/2c7fe17f-80b5-4f61-add3-cd87748ebb24/does_stanley_die_in_it_chapter_2.pdfIn PDF document text
    • https://s3.amazonaws.com/sisaxu/zelizovaroworibi.pdfIn PDF document text
    • https://68420551-d949-41c4-975b-2ae86aa6d062.filesusr.com/ugd/09c3c7_f9d14a4b3420496ba7cf1c5a3a16aeb5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nijudow/charity_event_poster_template.pdfIn PDF document text
    • http://jilawovo.epizy.com/45774187412.pdfIn PDF document text
    • http://faleferesevo.onlinewebshop.net/jk_flip_flop_truth_table.pdfIn PDF document text
    • https://e29a9437-b0a5-48a6-9afa-908397ce514a.filesusr.com/ugd/16a9c1_90d84aceb1ce43c2a8d0077eab89d360.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tomaxade/banjo_full_movie_in_720p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d57522ef-3cb6-44ef-aa23-0438c54c1813/famajemezek.pdfIn PDF document text
    • http://luxoxuwaf.epizy.com/vijilefunopamokala.pdfIn PDF document text
    • http://kimoviranonaf.onlinewebshop.net/89934655126.pdfIn PDF document text
    • http://gavofime.atwebpages.com/86954544032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0804ba7-02cb-4d81-accc-20a9f8c2ca62/62638371201.pdfIn PDF document text
    • http://buzanuziti.myartsonline.com/is_8000_a_month_good_money.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4baafdfa-42dc-43e1-8352-c62793e7c728/29243946072.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/kindle_formato_libri.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcca3248-3762-452b-bcb3-b4642a8d547c/list_of_foods_to_eat_on_an_alkaline_diet.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_off0000ea24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA24 5120 bytes
SHA-256: 9238c3b0b57c65bf8d1f3c988940937986595f05a634184ce345dacabb6d0235
font_01_sfnt_off0000fbb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB2 11780 bytes
SHA-256: 66e12246f31678964909338329624022f35f77db2660cfc3c8dd24a201bdf2cc