Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ae0010e97a68a4…

MALICIOUS

PDF

68.1 KB Created: 2021-03-05 04:37:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 3025680fbb151d7f2ab7dbfd6d08c9b1 SHA-1: fc201907acdcc1ccb960b4d828406b62ed6243af SHA-256: 02ae0010e97a68a4159383bd1bb2a52ba3a14fe8fed2bd586ac8b141662affb4
146 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 high likelihood of malicious intent. The heuristic 'SE_CALLBACK_LURE' suggests a phishing or tech-support scam context, further supported by the embedded URLs pointing to potentially malicious domains. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a phishing lure designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://seumenha.ru/award?keyword=chemical+bonding+study+guide+answer+key PDF link annotation
    • http://spiritstudio.ru/dasagakozh5ddo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500882/normal_60119eb7e2f60.pdfIn PDF document text
    • http://pisobadepujo.22web.org/5693574629.pdfIn PDF document text
    • http://gejejasofubi.mywebcommunity.org/beats_solo_pro_wireless_noise_cancelling_headphones_price_in_india.pdfIn PDF document text
    • http://rowowevu.mypressonline.com/who_is_the_most_ugliest_in_kpop.pdfIn PDF document text
    • http://tesugujinarijag.mywebcommunity.org/feridilo.pdfIn PDF document text
    • http://gakukuketisalum.scienceontheweb.net/nujotak.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475577/normal_602fb7b32ead0.pdfIn PDF document text
    • http://adyga.site/cintas_uniform_rental_reviewsekmeo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://milifarininigo.rf.gd/golipe.pdfIn PDF document text
    • https://c36efdde-2309-4ce2-a10d-b6df2ce12cd8.filesusr.com/ugd/e98059_6a369cde875b496999af93ad29f249fa.pdf?index=trueIn PDF document text
    • http://newemepakirid.myartsonline.com/vugitudazekepix.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/war_and_peace_volume_3_summary.pdfIn PDF document text
    • https://0c2a99dd-71fd-4a0d-b96f-672cfa785c21.filesusr.com/ugd/515c54_63c7df914b9147b786edd3a5765b6ecc.pdf?index=trueIn PDF document text
    • https://184d393c-d2ff-49e5-bbcb-48626b1dbf88.filesusr.com/ugd/49be48_5de1473ae2014ca69d1e1058e4762e0b.pdf?index=trueIn PDF document text
    • http://bumumewevebav.epizy.com/apple_style_website_template_free.pdfIn PDF document text
    • https://36535336-4f9e-4c0a-b1ad-3385cb5d4299.filesusr.com/ugd/15ebe2_83fb309a78264a538f4e3e4f29536fb0.pdf?index=trueIn 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_off0000cbf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF4 5656 bytes
SHA-256: a76f50661224d925f4f632a4bf732676acb4f8ab0c5940aba2ce40b6f98c95ea
font_01_sfnt_off0000df0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0D 10640 bytes
SHA-256: 75404e771fbff03352ad52a93bf874a780acf0d0342e4f0a39de6110ab6c7111

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