Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb003c569b2e8bf1…

MALICIOUS

PDF

184.7 KB Created: 2015-08-05 13:34:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0500d2965bd7797290db9ee9cb8aa9ec SHA-1: 38e38802040b1b024efbc24c400bc56dab43fcb3 SHA-256: cb003c569b2e8bf1c2208280d4aab3168bb56569fa9bad41291c9f9f80131c8b
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 a known malicious redirector. 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 not sufficiently informative to determine a specific 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=%D1%82%D0%B5%D1%80%D0%BC%D0%B8%D0%BD%D1%8B+%D0%BF%D0%BE+%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304498_skachat_igru_chelovek_pauk_the_movie_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304449_kamasutra_polnaya_versiya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304545_lesnaya_bratva_skachat_igru.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002410d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2410D 3556 bytes
font_01_sfnt_off00024e90.bin
ba74bd97e33b8328957be84ed3fdfd2d84a9c0a1c1fa94607f9e7ab46b66a7ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E90 14760 bytes
font_02_sfnt_off00027c8d.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C8D 14468 bytes
font_03_sfnt_off0002a740.bin
07d8a92770a6b788fb923b96c1716edf8e088239031091e65d0bd3cfd18481b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A740 6320 bytes
font_04_sfnt_off0002b913.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B913 6084 bytes
font_05_sfnt_off0002c8a8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8A8 3752 bytes

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