Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c96341dfe784ff8…

MALICIOUS

PDF

185.1 KB Created: 2015-08-09 07:45:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: df0a85d2d2f427ff304abaa50e405196 SHA-1: df77b15a5e79b10ee6a9b44c3659957a0ab7bc8e SHA-256: 1c96341dfe784ff89b64520412961822346181a61b51648a877c78917c79fe7f
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of compromise, likely serving as a lure to a malicious site. No scripts were extracted, and the document body was heavily truncated and unreadable.

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%B1%D0%B5%D1%81%D0%BA%D0%BE%D0%BD%D0%B5%D1%87%D0%BD%D1%8B%D0%B5+%D0%B1%D0%BE%D1%82%D1%8B+%D0%B2+%D0%B2%D0%B0%D1%80%D1%84%D0%B5%D0%B9%D1%81%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4393/4393589_psihologiya_uspeha_ili_kak_stat_hozyainom_svoey_zhizni_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4396/4396711_shema_yelektroprovodki_izh_yupiter_3.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386566_avira_2015_skachat_besplatno_russkaya_versiya_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024175.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24175 3556 bytes
font_01_sfnt_off00024ef8.bin
43e78815482a4b88d55cf4d26a6eaea282d74def0ade8b48dec0feec2bde8b68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EF8 14548 bytes
font_02_sfnt_off00027c72.bin
a9770cbb19a982a1ca245ae9dd57c2ebe78e8510dfe5e68aa43f25edc86204a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C72 14468 bytes
font_03_sfnt_off0002a724.bin
830304bd8d60fc3e771a94d2317f2b4e8aec6940e3d631f6fe6be053a544d445		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A724 6740 bytes
font_04_sfnt_off0002ba6b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA6B 6084 bytes
font_05_sfnt_off0002ca00.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA00 3752 bytes

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