Malicious PDF — malware analysis report

Static analysis result for SHA-256 feafce9d23646c1b…

MALICIOUS

PDF

90.5 KB Created: 2021-07-15 17:03:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7486614e016ae3e920abfa6aabe57f11 SHA-1: 7b99eaabbe342a3761288f04b94006cbc3146024 SHA-256: feafce9d23646c1be04c4f877a6a717d540459ca8ff2ce41c7ce30c6a9c9e587
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. The PDF contains embedded URLs, suggesting it is designed to redirect users to malicious sites. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5959

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/~3/5Aj-mlxkUx8/square?utm_term=f+starting+words+in+english
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60eca4f858d864752e04406a/1626121464242/most_embarrassing_moment_interview_question_answer.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60eda50b4325c5343bba6129/1626187019901/93169764881.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e84426b03fa808e5fdd3eb/1625834534404/lupin_the_third_sword_fight.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ed56f264a4563c8f7c5d40/1626167026766/vutikuxukidamebezolofiga.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_off000102cd.bin
e321e1f260d5a6121ada31bfd32490d2f035806e314661456660a279b8e0b426
pdf-font-stream PDF embedded font (sfnt) at offset 0x102CD 16924 bytes
font_01_sfnt_off00012e7e.bin
d871df2e6115ddd4bd0eef168a29e4f4250f7eb89a3f04aebb0b7fed5d7335b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x12E7E 10592 bytes
font_02_sfnt_off00014671.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x14671 16792 bytes