Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e3622fd2413f75f…

MALICIOUS

PDF

75.1 KB Created: 2021-04-03 06:01:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 3704f49b593e1df2e2a68f3410c1c3f9 SHA-1: f8aba8ad11c8e2d1aa3dd1de3fd0a7985aada11a SHA-256: 0e3622fd2413f75f173beeabbeb4d8a8f2fa6e1a30ac70b7b2956442a80de398
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains numerous embedded URLs, with one prominent URL pointing to 'soxebez.ru', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to be a lure related to legal responsibilities, likely to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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://soxebez.ru/strik?utm_term=what+are+the+responsibilities+of+a+guardian+ad+litem PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4386828/normal_5ffdbc8ea329a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368237/normal_6041dba7cfb4b.pdfIn PDF document text
    • http://kitigaw.22web.org/sosanexirerapux.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393361/normal_6041f04ca424a.pdfIn PDF document text
    • http://obschee.xyz/19541131224acsje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479222/normal_604a3cc0377fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_60609581a9f5a.pdfIn PDF document text
    • http://safetymirrors.xyz/fenesuxonopuqtbb0.pdfIn PDF document text
    • http://kpupnov.pro/403326105708jz6u.pdfIn PDF document text
    • http://ravovenovibu.medianewsonline.com/nogituwerajukunet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wusipoz.rf.gd/69830910595.pdfIn PDF document text
    • https://bed1e925-73f7-457c-87ff-53f226988024.filesusr.com/ugd/d4a8ce_349e32de0d94407b9523aa2546d539de.pdf?index=trueIn PDF document text
    • https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_6eb83d59ea5a4a4a9f8922b025507813.pdf?index=trueIn PDF document text
    • http://sogivuwe.onlinewebshop.net/after_2_anna_todd_english.pdfIn PDF document text
    • http://wodowepakimeko.onlinewebshop.net/how_to_write_a_summary_example.pdfIn PDF document text
    • http://nekipusixewid.epizy.com/acd_full_form.pdfIn PDF document text
    • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_1f8ef4f2812b4de5a73c2ecb263ed41f.pdf?index=trueIn PDF document text
    • http://xutenasejubibe.atwebpages.com/27942822226.pdfIn PDF document text
    • http://ledonapagemes.epizy.com/amortissement_comptable_logiciel_informatique.pdfIn PDF document text
    • https://75a697d3-84f0-44cf-bab9-f05e37020c50.filesusr.com/ugd/7c3584_1d68681f6dad421aa88d22c75ed2987b.pdf?index=trueIn PDF document text
    • http://kulitetokap.epizy.com/insert_space_in_html_form.pdfIn PDF document text
    • http://nepopenezum.rf.gd/cakewalk_vst_adapter_full.pdfIn PDF document text
    • https://171e2b11-24ea-4535-acac-f971ec821c4b.filesusr.com/ugd/a07927_42ae81be299c450faa024609a2b76386.pdf?index=trueIn PDF document text
    • http://burupopevetu.rf.gd/robert_sedgewick_algorithms_in_java.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_off0000e794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE794 5608 bytes
SHA-256: dbdd54451db550ca383e185ae716106eb35e1e45f5d433c5fde69bf104227c85
font_01_sfnt_off0000fa8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8A 10628 bytes
SHA-256: 55e5d48e02dd7b87c039aa10fd1da7131f48a97915b14de42877860d76636e94

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