Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e2eccd3d6f53971…

MALICIOUS

PDF

97.5 KB Created: 2021-07-16 18:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 810b164233f0c6c29908dca582b4c654 SHA-1: fa2612705ec6ff81848ae1b2e51d724efb84cd6b SHA-256: 7e2eccd3d6f539715e021406f6b1e6f95ab56d2f80fc045e72a3b09e2da0ff39
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious. It contains embedded URLs that likely lead to the download of a secondary payload. Although no scripts were explicitly extracted, the PDF format can embed JavaScript, which could be used to initiate malicious actions such as downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8599

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/IdU8rIDf9lQ/square?utm_term=comparative+politics+today+a+world+view+pdf+download
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f11acae013e242e713bcd8/1626413770872/top_20_boxers_of_all_time.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ed8a0850bb312daecf9d05/1626180104116/19610100429.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f0992f2350b33b36908b82/1626380591276/how_have_you_been_in_tagalog.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e86862939f1c477726ab8e/1625843810620/bonurikikagezowe.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60f018b798ba4d7461189dbe/1626347704057/adobe_premiere_pro_cs6_32_bit_free_download_with_crack.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee0163a0f2ca3483d5dd6a/1626210659574/dunipizudepupufudus.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e853dec7e8270008042b78/1625838558606/graduation_friends_forever_cover.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_off0001189e.bin
3328d2354e20694ec603e57165dfa7be101ccc0b690e174b87743c441ee520de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1189E 18856 bytes
font_01_sfnt_off000147a7.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x147A7 16792 bytes
font_02_sfnt_off00015fbe.bin
d598c6463e66e6256b21ba97b618da23d174937eeb69637acaa71ab6443777d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15FBE 11080 bytes

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