Malicious PDF — malware analysis report

Static analysis result for SHA-256 fadeb1281188d84c…

MALICIOUS

PDF

75.8 KB Created: 2021-07-19 07:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 025ecd4edbc34f065cdea5bd36d7fae7 SHA-1: e0c842670f0086834d4deb5236c86a2ca8d3ccc4 SHA-256: fadeb1281188d84c751cd0ce192123e0269c185f01c8deecadd3eae71fd59c45
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains embedded URLs that likely lead to further malicious content or phishing pages. The presence of PDF_URI and EMBEDDED_URL heuristics indicates the document attempts to redirect the user to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9163

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/UZrB20b2Dcg/square?utm_term=mad+world+song
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee065777fc8e778b5b9e09/1626211927740/xupuwarimefijubigo.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60eff17908697753172e653f/1626337657155/komodated.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60edc5e14485e42169ff3a97/1626195426033/92383719232.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f4673926c2747482ea9afa/1626629945589/the_purge_3_watch_online.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f4576fdb752c5e49b5bf8d/1626625903832/integral_examples_with_solutions.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f499d41db272198fa5a851/1626642901042/women_action_poses.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f250df1d3507074214ac33/1626493152113/vshare_moviebox_android.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_off0000c69a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC69A 16792 bytes
font_01_sfnt_off0000deac.bin
c261197c18d79bdcb3c34c4a0efa5539b4a59bf30a7fbdc8428b97d3e90bb4c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDEAC 17640 bytes
font_02_sfnt_off00010cea.bin
a42ea5b5e28b2e7af75bfbe3ec709b4e738a5ae342348e498a5bda587677151c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CEA 10180 bytes

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