Malicious PDF — malware analysis report

Static analysis result for SHA-256 b68fe319feab83e8…

MALICIOUS

PDF

80.9 KB Created: 2021-04-03 09:37:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: cc22af46a9a814e62f6ebe4cd1206567 SHA-1: 1281a079e782435f0e4993e8a5f2ff02b0fb0682 SHA-256: b68fe319feab83e8eb88af7f235fe88ec460dc2ad721fe87ea1982a545e1a946
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-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://dugedepap.ru/wix?keyword=shortnin+bread+song+wiggles PDF link annotation
    • https://cdn.sqhk.co/xawuboma/jjjhvTN/spinosaurus_costume_small.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466379/normal_604b245d2aa2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412573/normal_602490595eb2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413473/normal_6020be6967593.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/ihAhehe/tiwelagupefefanuripov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404965/normal_606487f5e955e.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/baf72659-df4f-46a2-9d46-a51cbe92755d/lawoduzabelivu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80922d82-784c-466e-8233-2514be3ea6ff/jirene.pdfIn PDF document text
    • http://fufifaramulemi.rf.gd/duvoronozonixe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4320d6a-50b2-4e50-b789-b1412f3c393a/mapovifazejizatujexeviza.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8754f8ee-83af-44c4-894e-36ee4fa7dbb5/twilight_breaking_dawn_part_2_free_download_mp4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70f91507-0a8f-4518-8dac-6fdaf491b0b0/how_to_get_cdl_endorsements.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a85891a0-4501-46c3-8d0d-cbe66424a0de/funcion_de_cada_organo_del_sistema_digestivo_humano.pdfIn PDF document text
    • http://xorabaza.rf.gd/gamuniwurorux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cea47ab-461f-4929-8f4e-0165ac8d448c/13604805227.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56d172dc-51bb-4800-8b19-3a8aa4b1148b/kenmore_elite_front_load_washer_not_spinning_clothes_dry.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f721af34-9613-4f06-ac9d-97afde91e949/how_to_restring_a_zebco_33.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4afb2a04-ee61-4ff0-8e19-cc56473fdbaf/14966747771.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_off0000fe7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7A 5420 bytes
SHA-256: 7a0a68f5ca19dd50736c358a55063d6b1c3849530084dbb9c0bdbf06a5aec3f5
font_01_sfnt_off000110eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110EB 11044 bytes
SHA-256: 95926f16fb95248c6ebd86ad3de4dcc46812b1edf33eba174a28d123a392b89f

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