Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0a2e69396cc5e9e…

MALICIOUS

PDF

86.9 KB Created: 2021-07-21 15:53:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 587936fd9fb6cee38085a2f49cf49d47 SHA-1: 33b49cccc398fdd4be8ab6010afb03a439a63e0c SHA-256: a0a2e69396cc5e9e919337000dd7c7dc8672370ab5934a5a29b19b2caf9f01e5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URI suggests an attempt to redirect the user to a potentially harmful external resource. While no scripts were explicitly extracted, the PDF structure and embedded URI are indicative of a phishing or malware delivery attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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/CcIy6vlvkUk/square?utm_term=simple+projectile+motion+problems
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ee045c930ff80baa1002ea/1626211420821/14774295004.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0745ed54ecf6408d8ad12/1626371167151/figure_of_right_angle.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec8abdad4a1a22a3e82d01/1626114749487/undertale_free_full_game_download.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f7f5b3896e5a6c1e35efe5/1626863027667/raccoon_in_clothes.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f15ea98cd1ac765d514637/1626431145496/totaluxudosixuduvere.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec8b0a40121f56689ab3e5/1626114826803/protein_denaturation_is_due_to.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f515341ad9bf1c32c933f2/1626674484109/fugomefodamimed.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f5a381810a3f7d9f98625d/1626710913710/34481203174.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f7ef9486bb0f67147c587a/1626861460576/soxikuzogupaweboxolabona.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f7e2093effc91c894b95f2/1626857993179/sizuguvojuwusutofi.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f475c925edf12306660efe/1626633673259/69851863059.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f319fbc2d40e67ec07e4fa/1626544635966/how_much_is_750_ml_in_fluid_ounces.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0581f0d9e4679a05a1d58/1626363935433/10592445857.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f0d4279014c44c528b3779/1626395687773/gomepukebineloraf.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e928a48915684aa53d8ceb/1625893029020/13756792652.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f64ba7f3a396036e35cb89/1626753959701/ice_plant_weed.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee89a9bb85ab7f02c0f8df/1626245545998/34375836901.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f6b744a7d83729ec1e0b97/1626781508366/pamuti.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee7b16df3d323292d40816/1626241814788/76994363909.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60edff57afeffb59e675768c/1626210135221/pokekivaruvosifil.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60ec8f58f6fc466b5bf41867/1626115928143/what_did_zach_do_to_hannah_in_13_reasons_why.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f639ddb042e120a1d0f862/1626749405856/51476201967.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e93bb519a9f87deb73ac15/1625897909995/84727879423.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_off0000efaf.bin
1a202945ac271b5b551f009d3f9841e047ce2f4ab775a4cdd2ef9c439559ecbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAF 17152 bytes
font_01_sfnt_off00011cd9.bin
66e8de1f6d2cdd943c623d5524453d8b06998f4d89dca4ae0d521bea3dfe9d84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CD9 10720 bytes
font_02_sfnt_off0001351a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1351A 16792 bytes

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