Malicious PDF — malware analysis report

Static analysis result for SHA-256 89ee9062ca7bb341…

MALICIOUS

PDF

84.7 KB Created: 2021-07-18 05:02:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 55f8665177de259fff2476b204df5ca7 SHA-1: b1901807498214176bd47f95d5595f1e035a1180 SHA-256: 89ee9062ca7bb341fc16f7665492e82bb5839eeee7a62624d35390ce3c98c0ee
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 PDF contains embedded URLs that lead to external websites, suggesting a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity, likely involving the exploitation of PDF vulnerabilities or social engineering to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/~3/5VO7y1TeAqQ/square?utm_term=wearing+gold+ring+in+thumb+astrology
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60e813428ad60325f0c88118/1625822019083/suv_and_crossovers.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee383d4d490f6727518378/1626224701570/51964272766.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f01a1bbba06d2f3419c1cd/1626348059682/download_gta_5_compressed_for_pc_100_working.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee127e77e2cd4113eca8a4/1626215038516/57819233302.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f3415a9dfa584dc9de5275/1626554715060/27991522036.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f353cac4d0d61e67387980/1626559434616/harrison_latest_edition_2020_free_download.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f2e43c0b17490892083dfc/1626530876678/xosuwebokonasi.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ed130a2271a75a72cf0521/1626149642321/83946836618.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ed119506893039839758ad/1626149269992/69072309260.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ede3f9e11d817478d28d74/1626203129917/difference_between_d_block_and_f_block_elements.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e8fa30dc37083541b70d58/1625881136703/the_squeeze_michael_keaton.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e88d950eaa7c19c9d71d84/1625853333608/tafokawine.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ee2cb4b1dcdf258da6a785/1626221749071/gta_5_obb_and_data.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f31afdde9f7d6ab7b86d06/1626544893816/interview_qs_and_answers.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e94ac537cb904475613d14/1625901765178/dnd_unearthed_arcana.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f27123783e880aac76863e/1626501411688/how_much_is_a_marriage_license_in_maine.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_off0000e820.bin
088067584a6557f941323036adc477cd33266e57b09dc02cccb3ae178e9fd350		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE820 16552 bytes
font_01_sfnt_off000112ee.bin
ad06d604023076b2f4fd5f432c7860b22e75af49d37c5e55e8d30793862578fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x112EE 11040 bytes
font_02_sfnt_off00012c37.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C37 16792 bytes

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