Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee1cff4e4b9ddca…

MALICIOUS

PDF

84.8 KB Created: 2020-12-21 03:42:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 84824caaa8854bb47c921bf609d8a6d9 SHA-1: 03d8b54e30c5d88e2aad0ad0b7568bc7391c7459 SHA-256: 9ee1cff4e4b9ddca0d2fd86a13634bd674794db8a8bd41e48c38626f7bd90d0b
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://traffset.ru/strik?utm_term=resident+evil+4+walkthrough+chapter+5-+1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4415950/normal_5f9880d4cbfcd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381320/normal_5f9ad1dd4441c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385887/normal_5f9ca89792f05.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/povodijirig/barton_hill_murder_verdict.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7976b8ba-1aec-41cd-a31d-1e50fa62cf36/50713816263.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/46505042805.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c87f44f6-d4d9-4eff-8fc2-32457953b241/wesab.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/mabenalofejur.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/tevojipituxusiw.pdfIn PDF document text
    • https://s3.amazonaws.com/xovajukoxin/2006_chevy_impala_owners_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62e149ec-9369-425d-bf1d-e52a73935032/tibia_and_fibula_labeled.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_off00010cd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CD5 5856 bytes
SHA-256: 80fe1513169e280d27306a052a5aff7b964553c255c51b3d55c83f789cc87d01
font_01_sfnt_off000120f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120F4 10988 bytes
SHA-256: 4923919069a69031a1acd75495396241f4630bc21c0ab2c4a2e806b34025b092

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