Malicious PDF — malware analysis report

Static analysis result for SHA-256 922edfeea56edfd5…

MALICIOUS

PDF

73.3 KB Created: 2021-07-12 21:11:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: eff40a5a9cdbd304f9d7ca5574bfb18e SHA-1: 2e6001e423afa49f6ca40c0b4c24999dc28a5161 SHA-256: 922edfeea56edfd509ac472ebc6b0bf6c6f61c0feeb1af5016256596d7bcd1a6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URLs suggest a phishing or redirection attempt to external sites. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards a potential phishing attack, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8728

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/razvivatel/yapz/~3/um1bUVUAM38/square?utm_term=gcf+of+12+and+25
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec808add2ac847ff7e5916/1626112138818/20346248910.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8965426d281541e6f6ca1/1625855572411/6561848460.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7d7b760c9e2bcf426f08/1626111355540/how_to_slime_without_glue.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7d3881873c46ac9393637/1625805704583/pukozadubagaxu.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec79dc760c9e2bcf420fc5/1626110428834/how_to_get_free_battle_points_in_mobile_legends.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e7a91952059f1ec1e14975/1625794841234/red_headed_woodpecker_washington_state.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec801cad1bf7105ccb88ed/1626112028831/first_let_me_have.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_off0000bfb2.bin
e9364f52a5b11c5ac5b6810f9ca1ceab3c2f02e0a7bc985edb12a946db9b4439		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFB2 16428 bytes
font_01_sfnt_off0000ea4c.bin
34ad8724306cd8ed78e007ae8990025db9e52ca55a0f0685f2275a1da5ddd6ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA4C 10180 bytes
font_02_sfnt_off00010159.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10159 16792 bytes

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