Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ec39b46f4b1ed6…

MALICIOUS

PDF

75.4 KB Created: 2021-03-03 16:59:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 87720aa207ede5b121db455919565413 SHA-1: da17500112882d0535eda5c11233db3a5acaf150 SHA-256: 00ec39b46f4b1ed65964f11b0cdb2b90c21782f34e56cb26c55d5146f0c24c96
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. It contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains text related to movie titles, likely serving as a lure to entice users to click on the malicious links.

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
  • 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://maypoin.ru/strik?utm_term=watch+the+hunger+games+mockingjay+part+two+123movies PDF link annotation
    • http://defi-bet.world/65468567523t6jw4.pdfIn PDF document text
    • http://sigisuzuk.getenjoyment.net/tijujogalaladuguragena.pdfIn PDF document text
    • https://vukuwapebu.weebly.com/uploads/1/3/5/3/135310377/8973144.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402932/normal_60308732ea626.pdfIn PDF document text
    • http://gexomafe.mypressonline.com/how_to_connect_hoover_steamvac_hose.pdfIn PDF document text
    • http://mestorating.ru/pubinipejeziguzirfs8u.pdfIn PDF document text
    • https://xetutimi.weebly.com/uploads/1/3/0/9/130968997/3256479.pdfIn PDF document text
    • http://vugekowuzujed.scienceontheweb.net/how_fast_is_a_2019_camaro_ss.pdfIn PDF document text
    • https://sijudunewofas.weebly.com/uploads/1/3/4/6/134696620/zumoselefofesa.pdfIn PDF document text
    • https://kenaveduku.weebly.com/uploads/1/3/0/8/130813649/sovosovusuboxegogi.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/gXDgj41/56212373952.pdfIn PDF document text
    • https://cdn.sqhk.co/xejadukoxeta/KjjiiIs/juzujulo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459935/normal_5fd3cf28970c3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484122/normal_5ff49bc6a9b67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447487/normal_602050b989655.pdfIn PDF document text
    • http://jarewitof.mypressonline.com/megowifob.pdfIn PDF document text
    • http://dujojiwasemob.mywebcommunity.org/gidorapuwatodune.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE859 6072 bytes
SHA-256: 518cdfb8261a1f111eacfb86438df7ce480f94c5b62753a218b31d7a603decff
font_01_sfnt_off0000fd0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0A 10332 bytes
SHA-256: 3c8f76fa334b84473866632c1df8e041e7c3ebc12d8a9ebb08b4da35f5afe4be

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