Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce2cd9db7be9d56b…

MALICIOUS

PDF

77.9 KB Created: 2021-03-26 07:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: cefb8e1e7e5ad8aad0055df579ed5af0 SHA-1: 0ed65108f0428c89b81841da420df7649aac18df SHA-256: ce2cd9db7be9d56b87a5bb06dff47cda9d1f1ec9fcd96f542a3025be338097d4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://midufefew.ru/wix?keyword=bartender+the+right+mix+unblocked+weebly PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413228/normal_6035cb7b2c5ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451574/normal_60074db037605.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464303/normal_5fd2c937877fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457854/normal_6037bcc81cb45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419415/normal_603d990b82736.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450734/normal_600d636a5275b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377674/normal_5fd77acfd5d88.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496005/normal_6039633fd7a0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369324/normal_6058f34a7220e.pdfIn PDF document text
    • http://nuselobire.22web.org/89959983810.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495400/normal_600c39519ebe4.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/10b8a865-236e-4441-928f-cc283e8aa9af/32208530187.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/battleground_android_gameplay.pdfIn PDF document text
    • http://jadizugexagosor.rf.gd/caderno_de_encargos_pini_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a4b66be-0215-4d10-84b1-07b6150515c5/funny_writing_prompts_for_high_school.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33fecc0e-6b73-43f1-8a20-043b1963de43/how_to_audition_for_harry_potter_and_the_cursed_child.pdfIn PDF document text
    • http://vezoxonu.epizy.com/nobreak_apc_back-_ups_pro_1000_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nevovumowa/andyroid_for_macbook.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/vagidajixirotetamiten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22ac7cf0-18c3-45c8-84fe-45e07d7f4dfa/setiforosiwokukunafe.pdfIn PDF document text
    • https://s3.amazonaws.com/fupanabivote/tesiwogisenofovusisobana.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9749dec9-56ba-4554-876f-b74ae2558f8c/ratazelasakagarusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/192741aa-cf37-4d75-b897-527d5a1691a7/putosam.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/best_songs_of_all_time_playlist.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_off0000ed81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED81 5688 bytes
SHA-256: 3f8047fb23139681b374565c98b30735e5f60cecfd0a565984bd6d7502cd0ed8
font_01_sfnt_off000100d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D4 11836 bytes
SHA-256: ea01b551056a4e39f36dd3bb57073db8116025ebb61f00d175d3ff0162aea26b

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