Malicious PDF — malware analysis report

Static analysis result for SHA-256 3904d70535ebee40…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 19:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 128825d4e0948015240b476837ca4c78 SHA-1: 5f0fba726b2dbd7a26a2363a9d48851d12b3bb29 SHA-256: 3904d70535ebee4054a1beeca384e801ae0967d4e64b811423fe1d166e44c08f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector URL. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, and the document body was not fully parsable, limiting further analysis of the exact lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 http://botcraftman.ru/?lip&keyword=%D0%9F%D1%8F%D1%82%D0%B0%D1%8F+%D1%81%D1%82%D0%B5%D0%BF%D0%B5%D0%BD%D1%8C+%D0%BF%D0%BE%D1%80%D0%BE%D1%87%D0%BD%D0%BE%D1%81%D1%82%D0%B8+%D1%81%D0%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193398_rech_na_pohoronah_kollegi_primer.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187495_nn2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189826_kniga_tesaka_restrukt_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002448b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2448B 3556 bytes
font_01_sfnt_off0002520e.bin
43e069edcdb4c4f17f8b718c071f743f2b73923dddbe0abc8126ea5903c16548		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2520E 14004 bytes
font_02_sfnt_off00027e4b.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E4B 14468 bytes
font_03_sfnt_off0002a8fd.bin
15b3403ac8b83c0c6f5ba29fe3105772308e9907c7c339304fa1f0b473d61507		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8FD 6648 bytes
font_04_sfnt_off0002bbee.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBEE 6084 bytes
font_05_sfnt_off0002cb83.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB83 3752 bytes

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