Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bae0574a0d88551…

MALICIOUS

PDF

185.4 KB Created: 2015-07-24 13:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c64812a64bdfdb8224b7bfdf61622ba1 SHA-1: 6dc7e11d7abed105ca6f2ac11b11bfaf7e9e2154 SHA-256: 9bae0574a0d8855148004340782d3b8ee66edf5d7c41d5b0e22bac4039b08c38
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 critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or redirection attempt.

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%A1%D1%85%D0%B5%D0%BC%D0%B0+%D0%BC%D0%B5%D1%82%D0%B0%D0%BB%D0%BB%D0%BE%D0%B8%D1%81%D0%BA%D0%B0%D1%82%D0%B5%D0%BB%D1%8F+%D1%82%D0%B5%D1%80%D0%BC%D0%B8%D0%BD%D0%B0%D1%82%D0%BE%D1%80+%D1%82%D1%80%D0%B8%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184458_videokarta_gigabyte_d33006_drayver.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186919_grandsmeta_6_skachat_besplatno_cherez_torrent_bez_registracii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185914_programma_rascheta_rasshiritelnogo_baka.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242e1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242E1 3556 bytes
font_01_sfnt_off00025064.bin
65786e32dd9ce92f0d8faa173c31b7efe00852973b7704be6e2e056b2873c477		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25064 14884 bytes
font_02_sfnt_off00027eb1.bin
0627de34e839737c03af0d9f30945bab194dadec018a1d0b90d3566f99dbb150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EB1 14532 bytes
font_03_sfnt_off0002a9a0.bin
b129c3a823a53a0598d22e755d84f3c6dad3a034f728b93af5cbc2bd409b8a3f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9A0 6420 bytes
font_04_sfnt_off0002bbe4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBE4 6084 bytes
font_05_sfnt_off0002cb79.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB79 3752 bytes

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