Malicious PDF — malware analysis report

Static analysis result for SHA-256 7302c09287258933…

MALICIOUS

PDF

84.4 KB Created: 2021-07-22 03:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 03f9b07deddbf9a9a7a6fc67f93ec7ce SHA-1: 9dfb915097db10ba5bc5c741256654523d94c608 SHA-256: 7302c09287258933fa5897210b876bc9eb3d3004693e1ee8f6c054974cf9e97f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The embedded URLs, though many are marked as benign, suggest an attempt to redirect the user to malicious content. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall indicators point to a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/-MXWpcYQ7kA/square?utm_term=green+pale+color
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f13f0f1c98e64adee94b8f/1626423055338/79796439680.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee1e11fb3cc800db530f49/1626218001322/pedowotumenak.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f39ef236db646251a39325/1626578674932/how_many_calories_in_1_cup_of_almond_flour.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f1692074384d54fd005784/1626433824140/nutivizi.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f095c907b69c1a09fea37a/1626379721367/best_martial_arts_for_grappling.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f89b6ff6b38207f734f095/1626905456086/35270234476.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edb9663d37cd087e6f36fd/1626192230686/three_kinds_of_levers.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee63aea005482cc158f03e/1626235823120/vasupipewisadizumenot.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f152ce0a71fd0da9af225b/1626428110978/the_odyssey_translated_by_robert_fagles.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8d37ac4ce500af844bb29/1625871226451/cste_certification_questions_answers.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec78a4bdd82073f6fde665/1626110116538/section_179_deduction_vehicle.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e929e783ae0c490239664c/1625893352090/lavegog.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f76bfedf23e9670e1f39f1/1626827775041/nuts_and_phytic_acid.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f64f7a5f306a537f78cf35/1626754938807/what_is_12_degrees_in_fahrenheit.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f7f5e186bb0f67147c97d2/1626863073461/thanks_response_email.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee3287e9cbfe6c2fe757f8/1626223239269/25017510925.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f84964c844b57290d1e657/1626884452309/metals_and_non_metals_class_8_worksheets_with_answers.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f8abd8d6a22c495fc7505a/1626909656795/sagezeze.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_off0000e886.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE886 16792 bytes
font_01_sfnt_off00010098.bin
c120d34b69b359e2e75437a1a9e9a16482ba1d6cf242367f9f98af30f57013a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10098 16616 bytes
font_02_sfnt_off00012be5.bin
956dff64d57e9c9ed9befdd6b85bdf11c9e0481f19b798edd8b32a0b9ece153e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12BE5 10048 bytes

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