Malicious PDF — malware analysis report

Static analysis result for SHA-256 e50f8cccdbe6ca59…

MALICIOUS

PDF

73.5 KB Created: 2021-07-15 18:41:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: abfd301db75b637e2bb6ae16b4b4b68d SHA-1: 0c913f3395c9e3fa75e1fd1d5e3de19ed2e8870a SHA-256: e50f8cccdbe6ca59e733a496a6d57c228f711ccc608b148ebf82c9f311c88172
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by a ClamAV signature and an ML classifier. It contains embedded URIs that point to external resources, suggesting an attempt to lure the user to malicious content. Although the document body is truncated and unreadable, the presence of external URIs and the malware detection indicate a phishing or malicious content delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7078

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/iXsW93xxTQA/square?utm_term=tu+mile+dil+khile+mp3+song+download+pagalworld
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e92bdf2c5c2f6215c96150/1625893855687/meaning_of_horticulture_in_english.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60eff74596309e3685aa5d31/1626339141758/what_is_gods_perfect_will.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60eca4177a6a1626764bb6c5/1626121239695/swtor_augmentation_slot_component.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee2e902485902f3e724eed/1626222224329/wireless_security_encryption_standard.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_off0000be90.bin
fb42d5a4ccd6f51eccef9a1bcf13077329215a1ac9828c9409ca79f80a4dc0ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE90 11156 bytes
font_01_sfnt_off0000d83a.bin
98b1c43b5737cb49101707fd29afe44d92f1a66574b117589fe5d9df4a88045c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD83A 16060 bytes
font_02_sfnt_off000101f2.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101F2 16792 bytes

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