Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7c82f2b205efbd8…

MALICIOUS

PDF

79.4 KB Created: 2021-07-12 22:19:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e76286a56ca73c9a21eacac1895822a7 SHA-1: 7764db61245682e27185a76835d22938c6cf3d1a SHA-256: b7c82f2b205efbd861b385cf2fe7cd4459db63ea1d9bcdc7d7ea8ce32a2962e9
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as malicious by ML classifiers and ClamAV, indicating a phishing attempt. The PDF contains embedded URLs that could lead to further malicious content or downloads. While no specific scripts were extracted, the PDF structure and heuristic firings suggest it's designed to exploit vulnerabilities or trick users into downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8666

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/mHcMeCcfVl0/square?utm_term=example+of+4+significant+figures
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec83ea4027437375968a47/1626113002150/bible_verses_supporting_lgbtq.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec8251dd2ac847ff7e8085/1626112593803/siwetinedisozupinifavum.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec77ec40121f566898cfb6/1626109932479/30661790553.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e8e405b673687559648c3b/1625875462012/walimodotawobopifed.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e8ecb583ae0c4902368669/1625877686075/95457192474.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e90577db8bb141bad84ed1/1625884023931/62130562259.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec8cf85f8bf969071e6b36/1626115321254/64504630866.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_off0000d428.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD428 16792 bytes
font_01_sfnt_off0000ec3a.bin
502adc00d7e069e1e63c91e1b59021821829aec807bc9b78725b7598994fe86e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC3A 16808 bytes
font_02_sfnt_off000117e3.bin
d0072c186d20e20e6f89f2a97d8eb4531409ecbcf660a0869dafc89ee3905823		 pdf-font-stream PDF embedded font (sfnt) at offset 0x117E3 11088 bytes

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