Malicious PDF — malware analysis report

Static analysis result for SHA-256 12957641a9d0ead2…

MALICIOUS

PDF

185.1 KB Created: 2015-07-23 21:17:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5f9bae4bbc540b933236d6cb2af2cae7 SHA-1: 6ed36d29736858eef698c499161165d182165c67 SHA-256: 12957641a9d0ead2ac36b9264f8dcaf8bc014c770ebc0253f97a98c10ce4235e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/` is highly suspicious and likely serves as a lure for further malicious activity, such as downloading a second-stage payload or directing the user to a phishing page. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of malicious intent.

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=barbie+horse+adventures+riding+camp+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183181_kuryatnik_shema.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184427_skachat_oruzheynuyy_pak_na_stalker_zov_pripyati.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184618_otvetuy_na_biletuy_po_promuyshlennoy_bezopasnosti_rostehnadzor.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a43b.bin
aa760f7ceda5e0e9fcfc5c403fb9a44e7e80c13585721831678059391482d008		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A43B 7572 bytes
font_00_sfnt_off00023cdd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CDD 3556 bytes
font_01_sfnt_off00024a60.bin
e71e929b04a3e2220cb3dee637d2da67f3987f762fc6f709140809924316b435		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A60 14828 bytes
font_02_sfnt_off000277fe.bin
8ddac0f2b6aeec8197ec75d584aa9e4837d69b00cede0a41f05a55737cc8483b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x277FE 15024 bytes
font_04_sfnt_off0002ba78.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA78 6084 bytes
font_05_sfnt_off0002ca0d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA0D 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.