Malicious PDF — malware analysis report

Static analysis result for SHA-256 122315b6f4e62ba0…

MALICIOUS

PDF

80.3 KB Created: 2021-07-14 07:09:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8b592615822d6efcdca53009e4a0ef92 SHA-1: 1a34323bbe72cd989baab4659a4f1acd9831c5e4 SHA-256: 122315b6f4e62ba02c19b1cfeaba2788c1ce43cda73536502955cc0641ccdb66
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by a machine learning classifier and ClamAV. It contains embedded URLs that likely lead to phishing content or further malware downloads. The presence of these external links suggests an attempt to lure the user into a malicious interaction, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8049

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/razvivatel/yapz/~3/gOBB6uaVNRA/square?utm_term=mx+player+pro+apk+android+tv
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e80a2fb977dd1475cbee0c/1625819695137/fanaa_2006_movie_download.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec823f668ba31612b5f2b3/1626112575947/scary_movie_2_cast.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e92627787dde1a90ae2557/1625892391155/84047754013.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee497b7dee9f188f795775/1626229115689/34310234630.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec8447ad1bf7105ccbf34d/1626113095793/lejepofugadidesobit.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_off0000d36a.bin
0c34b7d05ab2720b63510d11a89807180570966bec38264094dcea883f0b5299		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD36A 18812 bytes
font_01_sfnt_off00010335.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10335 16792 bytes
font_02_sfnt_off00011b4c.bin
83a26698d68dd6169a23387d78c47492376bf11c98eab3f5adcc72e3e2ed5769		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11B4C 10584 bytes

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