Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c1a61764ee95831…

MALICIOUS

PDF

89.2 KB Created: 2021-07-13 19:09:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f9f3899e70fe6b77d7e14b2a28194e3e SHA-1: 9fab7e776c0825ac86990d58e25bce31df7bd5f7 SHA-256: 3c1a61764ee9583140f06ad78c6a4f5e9e11f41382778b9d6ca9ff8aef524003
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, though many are confirmed benign, suggests an attempt to lure users to external resources. The file's structure and detection patterns align with common phishing or malware distribution techniques.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5959

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/r_nBws6J8g8/square?utm_term=romans+14+commentary+spurgeon
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec934e704a383bbedac470/1626116942879/shadow_and_bone_read_online_free.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e854748b84402bf7af96b8/1625838708170/anime_series_download.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e77649ed8d191f65461017/1625781834058/nasikalijezizevosulilez.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7c526d93aeb546a134d25/1625802022979/porosity_meaning_in_science.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_off0000fa5b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA5B 16792 bytes
font_01_sfnt_off00011272.bin
aaeb440397eea3b7c9a8b3ded62e02c2ab05a629f82c828a236495bacca2902b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11272 10968 bytes
font_02_sfnt_off00012c13.bin
7e89ac5848af3691254bc90eacfaf82a62f66b55cd31675cc9fabba6c2c75f60		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C13 17288 bytes

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