Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae09636dc3459464…

MALICIOUS

PDF

85.7 KB Created: 2021-07-22 00:08:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: df01c24b9a2fcf6ac3e0eae941145be1 SHA-1: 17715547cf520e297c82cf9d29a85e8a7a1851ae SHA-256: ae09636dc3459464088029e1684103912b24eb6df153753819cb89addc5745e5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by multiple security heuristics, including a critical ClamAV detection and an ML classifier. The presence of embedded URLs, specifically the one pointing to feedproxy.google.com, suggests a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely related to delivering a payload or redirecting the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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/ZFaGRQ6RLlg/square?utm_term=pash+meaning+in+telugu
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee5c863753dc428c8a5121/1626233990922/ginubozigopux.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60ede7bae7c05a535257da9c/1626204090955/71821395908.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f090121d9bd956bd16ab2e/1626378258472/75094098046.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e92c99025aa46e30d333e1/1625894041410/a_serbian_full_movie_download.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f70a5830ee7a439979909e/1626802776722/67857140100.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ee78957426fb5109f81f13/1626241173881/84591437596.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e8ad9ed043c520d0e5dcf9/1625861534570/rovek.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f88cbba8f64c72e9b252dc/1626901691903/seah_holdings_corp.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f2aab981f38b20587f1d15/1626516153259/specific_heat_of_silver.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60eddeea10369373fd840558/1626201834413/fodabafimujujuvigaxobu.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f88caaa4da41491ec8d95e/1626901675081/how_to_draw_anime_ear.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f483e5c2d40e67ec174f58/1626637285613/2839538241.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f6c718ce644d64b1ed3a85/1626785560320/the_first_nowell.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ec7e6b0d838b6c850c57ad/1626111595700/closed_and_open_organ_pipe.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f818ce008e595ea07b6c2b/1626872015014/rusuvo.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f3eb00730b252c881bc5fd/1626598144616/89706362959.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60edcfda8e89d93564d369ba/1626197978548/pukitubadim.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60effdc5e00eb31d7ced7c9e/1626340805213/94917241498.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f6599538c0e047d3658f66/1626757526041/five_table_manners.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f5715d9c7c9f0ea9b3bb76/1626698077618/talking_about_sports_in_english.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8faa8c22c005c933712cf/1625881256585/99342946018.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f49e71d68f32259068021c/1626644081526/najuwovezuvizijulobo.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_off0000ebe0.bin
351ac201c1a96521844725d233cf665e55789f6e0af846fd56a67f01b4143d76		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBE0 10436 bytes
font_01_sfnt_off00010352.bin
4c5687d9e9e45c953b8e2aaf6568b04ae2780cc427a63efd72d48f70fd834afc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10352 17268 bytes
font_02_sfnt_off00013085.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13085 16792 bytes

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