Malicious PDF — malware analysis report

Static analysis result for SHA-256 b896e012a3904d56…

MALICIOUS

PDF

185.1 KB Created: 2015-07-24 11:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b61245b61f14d4dbee5069a8fb55ef9c SHA-1: 5a11aa7e4fc497e8134c428db6dd28b2939519e1 SHA-256: b896e012a3904d56834dffc627e124d3500575120f480c8d29f296a86ed4ad7a
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was not parsable.

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%D1%87%D0%B0%D1%82%D1%8C+street+legal+racing+redline+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188995_skachat_besplatno_drayver_bravis_puv18.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186955_smart_notebook_10_skachat_besplatno_na_russkom_yazuyke.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191558_skachat_univer_novuyy_sosed_cherez_torrent_vse_serii_2014.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a4da.bin
7860b1e7aa5bc0cb647797ec7065402904d23f0386bc8715f735a9236211f8d3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A4DA 7376 bytes
font_00_sfnt_off00023edf.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EDF 3556 bytes
font_01_sfnt_off00024c62.bin
da7747364adef50f0e5b5a0a0e8bf1ae0c6bd5e56e421ce15be432a631fe1330		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C62 14624 bytes
font_02_sfnt_off000279ca.bin
df03e2075452864f7f861b6bcd9fc0aa64cbe3dfa3e076e90c39cafeb92d4c3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279CA 14576 bytes
font_04_sfnt_off0002ba8c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA8C 6084 bytes
font_05_sfnt_off0002ca21.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA21 3752 bytes

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