Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f02010389d8abd3…

MALICIOUS

PDF

185.1 KB Created: 2015-08-08 10:16:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ab6108bede3c1a4007e8f3676e18b4b6 SHA-1: 646cbf27b4352ed1ae0aae79fb822b205c67cf65 SHA-256: 9f02010389d8abd340fc3241370651cf47fef906e0418d9396631eb6b14f156a
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated and uninformative.

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%8F%D1%80%D0%BC%D0%B0%D0%BA+2+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384661_roberta_chaldini_psihologiya_vliyaniya_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383719_marinina_vse_knigi_v_hronologicheskom_poryadke.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384020_obrazec_rezyumye.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002408e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2408E 3556 bytes
font_01_sfnt_off00024e11.bin
324e08a821696308efbde3c817a3f3fd6530c68397d7aa63dfd49a65d104670b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E11 14800 bytes
font_02_sfnt_off00027c8b.bin
bbc95c6bd478c91dd7a02f23b7a83762506938cd346f81679858c1e5e68f0078		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C8B 14604 bytes
font_03_sfnt_off0002a7aa.bin
c4f7ab3859ebb22cc9b15e45390af1295d00a1fc14c77aad03c1fcc335b66447		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7AA 6632 bytes
font_04_sfnt_off0002baa5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAA5 6084 bytes
font_05_sfnt_off0002ca3a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA3A 3752 bytes

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