Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7dbc98a80dedb83…

MALICIOUS

PDF

77.9 KB Created: 2021-07-17 16:40:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 660d072038161df1f19b6a58c849ce49 SHA-1: a1024cbb53fb6a0ee37900d183d212024a709b8c SHA-256: c7dbc98a80dedb83978897e7b0297294b1dc95b7412120acc62d3e7658866ddb
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests a phishing or redirection attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a potential spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8791

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://feedproxy.google.com/~r/sq/ugae/~3/ZFaGRQ6RLlg/square?utm_term=1st+trillionaire+in+the+world
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f019e924fa75375d8619f6/1626348009342/wumimomibiko.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee58a62d09e34b72a1f046/1626232998178/74531649975.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f1fe6e14cbee58664501ee/1626472046347/deep_questions_to_ask_friends.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee5aa5eed6cd77ab63b994/1626233509967/accounting_policies_and_procedures_manual_for_banks.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60effe52a26b2b69a35d3387/1626340947018/booz_consulting_firm.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cf48.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF48 16792 bytes
font_01_sfnt_off0000e75f.bin
49319f3fbecdf1e4c8b8de6061b035ab4b8956680b92693dfc9b7483885b361e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE75F 10384 bytes
font_02_sfnt_off0000fed6.bin
9ffdda9ba38ad3213603710c3d5c0d6f863ec79965969e0dceeddbc9fd99ed25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFED6 16704 bytes

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