Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a17dea46c7c98a2…

MALICIOUS

PDF

77.0 KB Created: 2021-07-14 03:42:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d592b9101f7b033065768e9aec6c003a SHA-1: 96ddfeca4788e6e5da25cbb2315e41aaa47a2d58 SHA-256: 0a17dea46c7c98a2c23c2546d61d5e3584499454fe52e0fd02b1aa96aabfc780
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains an embedded URL pointing to 'catamma.ru', which is likely used for phishing or to download a secondary payload. No scripts were extracted, but the PDF structure itself is suspicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://catamma.ru/square?utm_term=apa+7th+edition+cover+page+example PDF link annotation
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee08f5537273346e2b6cfe/1626212597346/introduction_to_forensic_anthropology.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e91d92f492d21a0f6ac595/1625890194164/govarujijefilogo.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee14b17426fb5109f1bade/1626215601776/kuxosuzaridopubowesiso.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edbe177ce58f02ed904f7b/1626193431677/85550746661.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e9163392abcc18c4f58efe/1625888307423/46596285056.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60eca0775338e9546e49b6a7/1626120311869/pasakuzipenodimi.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee19a6588fb56695119fe9/1626216871145/an_ultimate_guide_to_community_medicine_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee26fdfc191471fc6ae6db/1626220286103/how_to_charge_battery_subnautica.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e9359c37cb90447560a03c/1625896348893/33983577589.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee0207ea8d40126a1fcf3e/1626210823300/pujagokobidop.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://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_off0000cd0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD0F 10992 bytes
SHA-256: 8752b74d17dde8ed3a9c9d72d0d8145f50f0ec081e6daaff777025fc3ad9e04f
font_01_sfnt_off0000e650.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE650 16040 bytes
SHA-256: 96b08ec08fea15aba0b5a1db9df3c031ff09a4824344d064def891fb96edc10d
font_02_sfnt_off00010fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FA7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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