Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4a711517e936c40…

MALICIOUS

PDF

98.5 KB Created: 2021-02-26 14:59:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0ed75a2c659c1d9d04facde8b7ca541c SHA-1: c022084b10f73815e48ad5c3cb54de946289fafd SHA-256: e4a711517e936c403220e62db4367653946eda221e530380e8104aa6e589ebbc
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically phishing. The embedded URL likely leads to a malicious site designed to exploit the user or deliver further malware.

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://jottigo.ru/strik?utm_term=what+did+pangea+split+into PDF link annotation
    • https://cdn.sqhk.co/xekejegixawo/xEPhhii/88868381180.pdfIn PDF document text
    • http://arfeshome.com/good_morning_tamil_photos_hdkk7vg.pdfIn PDF document text
    • https://cdn.sqhk.co/virurewev/eTCicjb/nature_sounds_birds_and_water_music.pdfIn PDF document text
    • http://sijowusim.22web.org/search_files_on_google.pdfIn PDF document text
    • http://pixell.store/silent_love_song_punjabiiuyhe.pdfIn PDF document text
    • https://cdn.sqhk.co/wanevakaxuma/hiVhi4j/wakinevuf.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/jivamubug/josh_groban_february_song_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/mavixu/51371627163.pdfIn PDF document text
    • http://gegukisakewomo.rf.gd/satulagefararaxaxesimu.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/18034479294.pdfIn PDF document text
    • https://s3.amazonaws.com/kufazete/4581990282.pdfIn PDF document text
    • https://s3.amazonaws.com/posufij/63198942345.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/51078054799.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/majesty_chords_delirious.pdfIn PDF document text
    • https://s3.amazonaws.com/lazolu/langrisser_mobile_hero_guide_google_docs.pdfIn PDF document text
    • https://s3.amazonaws.com/libusamagowuvo/60713754824.pdfIn PDF document text
    • http://ginudaxosisavo.epizy.com/tabovavobemuniri.pdfIn PDF document text
    • http://gusutawidike.epizy.com/99223178599.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/vafunepupenefefigotowope.pdfIn PDF document text
    • http://wafepugi.rf.gd/965792074.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_off00014141.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14141 5136 bytes
SHA-256: 71be0549a02c4e4ce220808f87c7f9b958a6cf87e7b03fdfc9fa104d76a37ed3
font_01_sfnt_off000152c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152C9 12708 bytes
SHA-256: 26db43a7c880737a1457bcc9965099e5c4625d368ab6d3a1a4128cad07e58fd6