Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8dfb30dd61257c9…

MALICIOUS

PDF

94.2 KB Created: 2021-07-14 01:22:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 6b48deb23977b54b03a50c39b70dd409 SHA-1: 1fedab6efc443704d863bfd73395f87887622ed6 SHA-256: e8dfb30dd61257c936cbae2da5236bf50fe7810786346484229c7d4219425182
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs, one of which is flagged as potentially leading to a phishing or malware distribution site. Although no scripts were extracted, the presence of embedded URLs and the detection results suggest this PDF is designed to trick users into navigating to a malicious resource, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9888

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/eaN1Eb74jJI/square?utm_term=pan+africa+meaning
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e82fe37e45264421fc1453/1625829347612/at_what_age_preschool_starts.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e8b66feed2fb3579bddf01/1625863791977/bottomless_pit_crossword.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e9407e320dbd0de2820d69/1625899134841/mole_mapping_procedure.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e90d82c91b61347ea2de88/1625886082896/candace_owens_impeachment.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e7b9656e46386ca3bebe55/1625799013332/new_education_policy_in_marathi.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec7aab40121f56689907c4/1626110635437/convert_20mm_to_fraction.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e76fe75a6a8d402455ae82/1625780199936/best_free_movie_apk_for_android.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ec84985f604029b991a7d2/1626113176892/stock_price_volatility_meaning.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee03ce4c056a31b81f3488/1626211278671/biography_of_theodore_roosevelt.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_off00011106.bin
3b3771988169ef4b4751930607d0cf3cb54ec57a57f5bd066190aa3fbb6c3aa0
pdf-font-stream PDF embedded font (sfnt) at offset 0x11106 17476 bytes
font_01_sfnt_off00013def.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x13DEF 16792 bytes
font_02_sfnt_off00015606.bin
111f940ea8fe6db2c257f09d7cf9abcf9ca3d9ccb147aa8c8c8f64b4f9324fe3
pdf-font-stream PDF embedded font (sfnt) at offset 0x15606 10248 bytes