Malicious PDF — malware analysis report

Static analysis result for SHA-256 55f6eaef66086371…

MALICIOUS

PDF

70.9 KB Created: 2020-11-11 18:24:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 4e76335888981e2df41285c4806af15b SHA-1: db7e208880df4599ee8a65d85047e7c634e895b6 SHA-256: 55f6eaef66086371bdcd708ad2cd4e1085fd2e9b993f364933fa8083d30350c3
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://trafficel.ru/123?utm_term=territory+war+2+unblocked+at+school PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366627/normal_5f8751ab8b56f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471711/normal_5fa64a8681daf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366385/normal_5f9ba63e4ef94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416675/normal_5f9e520ba52bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365626/normal_5f871eb1d6415.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376362/normal_5f9bf38d4fed7.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/595bc627-f274-46d2-8302-dba0aae37b22/fabafo.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/31837165082.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1ee08b1-905b-4476-95fe-946f3c36efb2/89981662782.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7f809ce-d866-4f46-843c-faf76c8249d4/wilurepetemazan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9be6b901-701b-4f4b-bf1d-0aaa93f3122f/59248793114.pdfIn PDF document text
    • https://s3.amazonaws.com/bitajemisajoz/25215531009.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/632c38c5-957f-47c6-adff-f713b1b02b8b/gujilazekerujewe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC608 5508 bytes
SHA-256: 63451b1dc752472a07daf5c13e6aeffeeb52123a889e98cb4fe67fd9bed8d0dd
font_01_sfnt_off0000d8d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8D1 8768 bytes
SHA-256: 27c9abfb5f43c41482dfb06e7e39d92b73babca74b672d9edd67854e6cd1bd94
font_02_sfnt_off0000f6d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D7 16328 bytes
SHA-256: dbd44540e792302ea79991b8820e24359a6399751b7f07fdb4561da5864078a7

Open this report in the interactive analyzer, or submit your own file for analysis.