Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe6e4821580ffcb…

MALICIOUS

PDF

71.6 KB Created: 2021-07-15 20:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2a3d7caa069e190275725c192553203b SHA-1: e9c51c45023684d8e6a7bc58666e63037944f4cf SHA-256: abe6e4821580ffcb2f435d5a44c452a7812cfbcfbef29b6ab54218a0480d637c
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file was detected by ClamAV as a phishing trojan, indicating malicious intent. It contains multiple embedded URLs, some of which are associated with content delivery. The PDF structure and embedded objects suggest it may be used to exploit vulnerabilities or lure users into malicious actions.

Machine Learning

  • Nyx PDF Classifier clean score 0.1869

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/CHqDoFjlE84/square?utm_term=what+soothes+a+stomach+ache
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e928d78ce0e10532d2efe2/1625893079850/1470170653.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e85e54344da47feb0c5619/1625841236678/gamorad.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_off0000bda1.bin
4fd438b363e62b12bf8c46febcc0520d3a41bd4bf74477c24f748cfd4fb89259		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDA1 15076 bytes
font_01_sfnt_off0000e3f5.bin
6e91eb686a5121a5960a510f188f7e56d3249f883649c2461ee11ff8016568f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F5 10144 bytes
font_02_sfnt_off0000fac2.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAC2 16792 bytes

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