Malicious PDF — malware analysis report

Static analysis result for SHA-256 e10d953736e5c252…

MALICIOUS

PDF

73.8 KB Created: 2021-03-03 08:43:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 93b67f58a3cb9410608dbfa6b87a7b2d SHA-1: 9148326102629ae73cb92e84efc00904291ed423 SHA-256: e10d953736e5c252ee29dad46e2e302da1ef12e2137f7127262a5548b4fcdec8
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dugedepap.ru/strik?utm_term=why+should+everyone+get+a+trophy PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4402707/normal_5fe9cc75690c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412160/normal_5ffd30760b36c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481271/normal_5fe0e27d2ca23.pdfIn PDF document text
    • https://cdn.sqhk.co/vesotadenogo/jjKUkIH/sexebetoliloto.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465255/normal_5fd70a115edf6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489264/normal_5fe0262273ed1.pdfIn PDF document text
    • https://cdn.sqhk.co/lunosupi/kojb8ib/adventure_capitalist_hack_pc_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/novigigexuxo/aqahdhg/affirm_definition_english_law.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368240/normal_6014ab1d3329f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481157/normal_601db5311b98a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417226/normal_603211cac4384.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420430/normal_601e4945ef89e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368758/normal_601306cca60fb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476270/normal_5fd64de1de84a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dixolasafu.epizy.com/75821470044.pdfIn PDF document text
    • http://wuginafana.epizy.com/bd_all_board_result_apk.pdfIn PDF document text
    • http://vowaxuf.rf.gd/kopinizulinub.pdfIn PDF document text
    • http://pixuxurarosu.epizy.com/brilliant_quotes_apk.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_off0000e3fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3FD 5396 bytes
SHA-256: dc7f50cd9ae5b6e70c2d1902a72ee248efea4db37d247f993176d33a19a7628a
font_01_sfnt_off0000f665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF665 10476 bytes
SHA-256: d61cffa1c4291e6a45fde7a0b9467b6a5c020e70bd43b7b0d7bf780e2f958d27

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