Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0d179e3da0652ae…

MALICIOUS

PDF

79.1 KB Created: 2021-07-17 15:37:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c5f1e6f88a09bdd9f98f102f6ac9ed7d SHA-1: 45b519a42f98dbff753a44a291d5449709cf3219 SHA-256: b0d179e3da0652aed86740bb9daa535b08a6a9a2887b4e55a8ba92cf5d9586e9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to redirect the user to potentially harmful content. The PDF structure itself shows signs of manipulation, with duplicate object bodies, further supporting a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8028

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/HbdJGeoIq_s/square?utm_term=gaelic+terms+of+endearment
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8fd163b7e7c63344ea9d5/1625881878481/cleveland_state_high_school_catchment.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee395b2a4cda17625db669/1626224987458/this_is_for_everyone_tim_berners_lee.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7a0f58592fe3a588e6f7c/1625792757707/zolepufarivirubu.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee3407ab0cb8743be3d7cf/1626223623702/mofokefejilunezelirewa.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f0c83f1f3fa43bb6b3cc48/1626392640103/jofilupamizuduxofavosi.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_off0000d1a1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1A1 16792 bytes
font_01_sfnt_off0000e9b3.bin
60296121cfc3afccb403cde3faed9f3ec5fc07e55f0aea8dd0fd305d96eb4e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B3 17832 bytes
font_02_sfnt_off000116b2.bin
9b55c23bbe38c19acc8029672164bdd04cd0e81a5a92a50ca56c8a7af2947bf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x116B2 10676 bytes

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