Malicious PDF — malware analysis report

Static analysis result for SHA-256 80daf12c9008b646…

MALICIOUS

PDF

78.0 KB Created: 2021-07-22 00:06:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 687838dd6713a0f798d4357cd54b80de SHA-1: 0c673137d5307f80a41520bf695d84fadeee08f0 SHA-256: 80daf12c9008b64675aedd079783649143f14f0caf6d636a1ddbbcb5973e3ba3
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by both ML classification and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, although many are confirmed benign, suggests a potential phishing or redirection mechanism. The file's structure and detection by ClamAV as 'Pdf.Phishing.Trojan' strongly point towards a phishing attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/k6oGaauGqGM/square?utm_term=moment+of+force+examples+pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e91d99b9b95949b65e9bcf/1625890201588/2nd_puc_physics_question_paper_2017_march_with_answers.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8d39c0cb99a3e7b656732/1625871261094/69771725208.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f4abd254c26a0cc30ac74b/1626647507133/town_meaning_in_marathi.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ec8e22cd1a1204f6c8ec42/1626115618611/faruzemavilapo.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee2acf7dee9f188f774df1/1626221263239/ulnar_collateral_ligament_tear_symptoms.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f88b4ab59da31e449e27e9/1626901322933/motor_aphasia_definition.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f0367791893d3c03987ca0/1626355319571/rotezixepozoxosugozafupo.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f3b97f6f491d4a1ff5f426/1626585472100/36232760847.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60eda82cb2cb0e52868adc58/1626187821116/introduction_to_gnss.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f0e620133357608f38f17c/1626400288360/critical_ops_old_version.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f4dcf21d3507074230e0e4/1626660082811/while_condition_in_shell_script.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ec8781fa40056e74d2ad2b/1626113921493/ripping_small_pieces_on_table_saw.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f3bd8b668793736d361456/1626586507561/62421734671.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0cf3ad1d8e65aae81b921/1626394426486/listening_cookery_classes_answers.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f20ee52e59700d3e507833/1626476261106/new_social_movement_theory_definition.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e7a7788ad60325f0c36d58/1625794424489/vepupulefan.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f88b9965c5f3259d74c62b/1626901401387/86933307401.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_off0000d18e.bin
350a1cfdc0924faf0a24ff0009496f8ef92c02e7f13dccb87a8ca3cbdb101a02		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD18E 15736 bytes
font_01_sfnt_off0000fa01.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFA01 16792 bytes
font_02_sfnt_off00011218.bin
0d95ba7e4572574284c979e73a2673486f9647532691ff7606024e68aed0b726		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11218 10784 bytes

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