Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb27eb8aab4146e…

MALICIOUS

PDF

71.9 KB Created: 2020-12-04 07:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 37d1db458447e84afe5c6e08b9f59e3c SHA-1: d83c8f23e547229a7e3be38823ce74aa43eedef9 SHA-256: 0eb27eb8aab4146ef0bd97be77b0a5c904ffe01a4274d17c9d7fbb339cf7b933
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 0.9998

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://traffnew.ru/123?utm_term=union+steel+chest+corp+leroy+ny PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388181/normal_5fb8793290d7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427097/normal_5fa8b4554c18b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378165/normal_5fbf0efec0da2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459640/normal_5faacaf8e5606.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374022/normal_5f9be3d2011a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388421/normal_5fc74699450e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367286/normal_5f87975cac72e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366375/normal_5f9a938bf3f91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486523/normal_5fb2ea6418865.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381543/normal_5f8eae8166bc2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/57051086517.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdeed01972c46e3c6420e7/1606282961499/ski_doo_repair_manual_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/rakonezum/kios_adventure_cgs.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/51012815491.pdfIn PDF document text
    • https://s3.amazonaws.com/fipijife/xeteporemi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c50e1c8c741314534cd3/t/5fc9886eec1d586fb3839f6f/1607043184384/62901083888.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_off0000dacc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDACC 4904 bytes
SHA-256: ff4202cbffc2273c9ee4e60a31c67b22805ea62f1ebe02400b3b4eeac03ee8e6
font_01_sfnt_off0000eb82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB82 11548 bytes
SHA-256: 114858fd1e699684ff070572a6696b9a0019acd836944a2b2bc0e1480571d810

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