Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6c48ff43c9b9562…

MALICIOUS

PDF

202.4 KB Created: 2021-02-14 17:57:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 461c96058abab75990d4d2e318a2017f SHA-1: 8920ab6fe61c6b071773eb77876eedc8f52a398e SHA-256: e6c48ff43c9b956257c5a87f49c3d9c3de7b2f83847a4c3ae92a51bd6495c4d1
96 Risk Score

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 0.9971

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://bologen.ru/123?utm_term=age+of+consent+nh PDF link annotation
    • https://cdn.sqhk.co/rufebumu/iRhaI0F/89476546895.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371014/normal_601f9fa482605.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448124/normal_5fd135e1d3f2e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471509/normal_5feaf8a4baafd.pdfIn PDF document text
    • http://zekoselu.22web.org/sample_leave_letter_format_for_school_students.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480579/normal_5fc8d503bbc72.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/mipizaju/tivituvigiluzikona.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/prime_video_location_android.pdfIn PDF document text
    • http://lawakeweba.epizy.com/facebook_free_install_for_windows_7.pdfIn PDF document text
    • http://xizilagitakov.epizy.com/no_kissing_baby_music_video.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/fivimot.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_off0002e299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E299 4792 bytes
SHA-256: af0314d5e6891e0e4730a607c044216c6253a63dc967528f445f24de8fbc0334
font_01_sfnt_off0002f2fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2FE 12092 bytes
SHA-256: dec2db5a46068bf75d169c267e722dae804a167143794e1cd2deb7f32d4fc949