Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd5dde245474613d…

MALICIOUS

PDF

77.8 KB Created: 2021-02-13 17:40:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 18cb4b6bbe36fc4a88aef79b5e238956 SHA-1: 1242f8433b7a8066ea27a1865b2bfb0d7387572c SHA-256: cd5dde245474613da54a1df8ca013546b6b7cfe3c6b27eb10ce801517c51945c
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://maypoin.ru/wix?keyword=forgive+my+fins+pdf+espa%25C3%25B1ol PDF link annotation
    • http://nogivubuleduwi.22web.org/gosezamuxuvaxezukakujef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378425/normal_600ef8047bc75.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485163/normal_60037ab5c323f.pdfIn PDF document text
    • http://suxiselukex.66ghz.com/beiimaan_love_full_hd_video_songs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470985/normal_5fcb559a4810e.pdfIn PDF document text
    • http://zobebukore.22web.org/bfgminer_5._3._0.pdfIn PDF document text
    • http://wameduxuka.iblogger.org/karaluxu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447465/normal_5ff8f7424f360.pdfIn PDF document text
    • https://cdn.sqhk.co/kovixileta/hgo74ge/28427942635.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378406/normal_5fe1f7e72f5b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/roware/bdo_witch_guide_gear.pdfIn PDF document text
    • http://xafaxeko.epizy.com/rezur.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/cheat_sheet_idiom_meaning.pdfIn PDF document text
    • http://pobevezegudam.epizy.com/sql_tutorial_free_video.pdfIn PDF document text
    • https://s3.amazonaws.com/xapota/xufivunekomoxuboka.pdfIn PDF document text
    • http://wanabovemuzume.rf.gd/adobe_to_word_converter_not_working.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE354 5396 bytes
SHA-256: 1326b6911c7daffee480aaf8eb535e1ad1974cdaa475d021d28f92992e7a55e9
font_01_sfnt_off0000f55e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF55E 10780 bytes
SHA-256: b4ab84e3c2ff5c5127e0e232bdb7322517638c1f1294aff88caef7bbc216d234
font_02_sfnt_off00011a0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A0B 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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