Malicious PDF — malware analysis report

Static analysis result for SHA-256 604750c22559c8f4…

MALICIOUS

PDF

73.8 KB Created: 2021-03-18 01:05:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 322ec399e11c8a9fd5d4cdf594fc9b7a SHA-1: 7782aa2eb7117639822247f7907ed34a83a29134 SHA-256: 604750c22559c8f40ec90a233c10519e4599d7b74fb002b1da0257ed97f01532
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://lozipotod.ru/wix?keyword=reggie+level+editor+tutorial PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4489041/normal_60270d185fb06.pdfIn PDF document text
    • https://cdn.sqhk.co/dasofuduveje/LBBhbhc/24786388645.pdfIn PDF document text
    • https://cdn.sqhk.co/verikiweneza/bhcHDMb/greek_warriors_castle_defence_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/boxepupovemu/Jjhgiih/denolikizuwa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455208/normal_5ffe0a10da7a7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374373/normal_604302cc259f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484115/normal_5fd1fb11d15a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386828/normal_6036356eddbee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415068/normal_602c908a863ac.pdfIn PDF document text
    • https://cdn.sqhk.co/dimumaneda/1rjf9jb/53997830493.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453108/normal_6023aafbc415f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450046/normal_605231a7b7b45.pdfIn PDF document text
    • https://cdn.sqhk.co/libodinidep/isiahgU/top_music_player_for_pc.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/50986a28-56af-45ee-971f-df3d868ad9f2/lupeperesutogavukizavarub.pdfIn PDF document text
    • http://lisenezijigela.rf.gd/29096548286.pdfIn PDF document text
    • http://vejesigivilowen.rf.gd/autonics_rotary_encoder_datasheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3682d7f8-1980-422e-8000-3f64b138482e/485578323.pdfIn PDF document text
    • http://jinonepi.epizy.com/ftb._ca._gov_form_568.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_off0000e551.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE551 4884 bytes
SHA-256: 42d7c731cf0ee7c2c95a4e06650e860b81ef3e2ce29d71910bfa62c4a4b06b86
font_01_sfnt_off0000f608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF608 10720 bytes
SHA-256: 77f99d8ac79c6b83efdc7732b5c1df7097dcd8be245592a26c999641fd7302e9

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