Malicious PDF — malware analysis report

Static analysis result for SHA-256 b39c22e6b1916cd3…

MALICIOUS

PDF

185.3 KB Created: 2015-07-24 00:05:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 99dc6cc353ea3ac4e9107dadff375b37 SHA-1: 0b2119805be82ecdbc9e8ba4ed69329f22d95554 SHA-256: b39c22e6b1916cd3daba82f4987b5746c75fd5ff8c48170376dedad620e68ed5
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 link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious website for phishing or malware distribution. No scripts were extracted, limiting further analysis of the file's behavior.

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=%D1%81%D0%BA%D0%B0%D0%B9%D0%BF+%D0%BC%D0%BE%D0%B1%D0%B8%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185402_telefonnuyy_spravochnik_goroda_ustilimska.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185024_koduy_produkta_dlya_origin_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185453_obrazec_otcheta_na_1_kategoriyu_rentgenolaboranta.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240fc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240FC 3556 bytes
font_01_sfnt_off00024e7f.bin
c0d8ca9197eb30eaec2feb3c2eb1a254d78327881e50d445661fcfddd1666d4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E7F 14748 bytes
font_02_sfnt_off00027cce.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CCE 14468 bytes
font_03_sfnt_off0002a780.bin
dd54744023e0f17d94a48b7826879ac3103ed2ffc754af57f133582074803a58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A780 6948 bytes
font_04_sfnt_off0002bb8e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB8E 6084 bytes
font_05_sfnt_off0002cb23.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB23 3752 bytes

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