Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c296fd7c22de1fc…

MALICIOUS

PDF

113.9 KB Created: 2021-07-21 16:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 77dfe59376baef9e3ed9e9f275b2d280 SHA-1: 12a3320e68d6e0187f4e1936e5b6b097bb0d7f54 SHA-256: 6c296fd7c22de1fc3a310ae407e682c5c3c6217108cbf0d18cdd27afbfa49826
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ML classifier and ClamAV detection strongly indicate this PDF is malicious. The presence of embedded URLs, despite some being marked as benign, suggests an attempt to direct the user to external content, likely for phishing or malware distribution. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall pattern points to a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/ZV5PD9BTPXI/square?utm_term=so+shout+out
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f469e1e13ee97666130637/1626630625804/strict_comparative_and_superlative.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f06932529fbe08b0aaa9b4/1626368307057/paints_and_varnishes_notes.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f05e4dc872e80de5b349ed/1626365518403/funekoturisanatuneduna.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f7d8acf668a559cd98f081/1626855596074/10266921485.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f422f6952f835132dcc9dc/1626612470169/29098697651.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec7d3140121f5668994cb9/1626111281903/topical_chemo_cream_for_skin_cancer.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e7d59e6d117d6eeca41e9e/1625806238392/12670711817.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e77524ffbfc804da953f10/1625781541122/risufomutu.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec9f7845711547b6a8facf/1626120056207/chickenpox_vaccine_during_pregnancy.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ecb30ab067801019595862/1626125066954/15848345079.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f2a38eebca9b5ae8e42578/1626514318662/demographic_sheet_for_students.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f07d24d062d015cc3f646a/1626373412348/mebodisezexetuvuxezem.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60eda61f9a9df7051d401c1e/1626187295906/o_praise_the_lord_with_one_consent.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f6b2699b22fd57af28b299/1626780265311/square_pink_acrylic_nails.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f791d871a51f0555421e1c/1626837464257/hansel_and_gretel_anthony_browne_read_online.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f3c13aec5ad00cc094a005/1626587450663/72251402051.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_off00015f9e.bin
c9d8a1915119f7a5db9ebcb7c426845b4744e8987543008688fb31add41adfe2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F9E 9744 bytes
font_01_sfnt_off00017505.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17505 16792 bytes
font_02_sfnt_off00018d17.bin
9e4d73fc8d3b6cf2eed36a2c2a034d51f0d419684d1ff834db3610afdee88b21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18D17 17620 bytes

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