Malicious PDF — malware analysis report

Static analysis result for SHA-256 9992fd3e1e81c2d3…

MALICIOUS

PDF

84.0 KB Created: 2021-07-13 22:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0fc3d6643fff53434b6c1eef059dfea9 SHA-1: 5c146f787313cb377a6fbe4954b7bc46666e9004 SHA-256: 9992fd3e1e81c2d33b9b212f1db45bae969159b907a33dd8e58fb7d84e5b49e7
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by both ML classification and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs suggests a phishing or credential harvesting attempt, likely delivered as a spearphishing attachment. No scripts were extracted, but the PDF structure itself is suspicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9473

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/~3/4P1vZUbBa90/square?utm_term=what+are+some+weaknesses+in+an+interview
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7f6784b964f05b84938bc/1625814648221/dubokevataxalezepofir.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8f1afcc7c08645924d21d/1625878959957/39693391812.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8cb01fe2317389cee1ecc/1625869057869/49700103669.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60eda5c6c7772f26c851bddf/1626187206596/indigo_cbse_questions_and_answers.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e784b569e9d36975f4c56e/1625785525655/dogebilatavefilikol.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edc138d6548a387fd02956/1626194232442/guide_to_everything.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7f8340121f566899886c/1626111875713/psychological_foundation_of_education_ppt.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e91929787dde1a90adbc22/1625889065531/11188808702.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_off0000e798.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE798 16792 bytes
font_01_sfnt_off0000ffaa.bin
33ad2b56d53f12b1f2361f000abf1c8fcdb8d87b2078196fbb3bf899169836ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFAA 16428 bytes
font_02_sfnt_off00012a06.bin
30455fcde74f8b04d38eabb70a8a0690a5470457c2c2d0f29cadd2534a7aad44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A06 10564 bytes

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