Malicious PDF — malware analysis report

Static analysis result for SHA-256 adba0e9ffb1c6301…

MALICIOUS

PDF

188.0 KB Created: 2015-08-05 21:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a3ef50667e4cd473f6f988c70cb74580 SHA-1: f1bb1eed95347258c6f6125ac9306ac749eabd0f SHA-256: adba0e9ffb1c630193a896672c0d0b66b8ccb9934818ce753f546e9be15944da
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates a likely attempt to lure the user to a malicious site, potentially for phishing or to download further malware. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, limiting the analysis of the exact payload.

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%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D0%B0%D0%BA%D0%B5%D1%82+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80%D0%BE%D0%B2+%D0%B4%D0%BB%D1%8F+%D0%BD%D0%B5%D1%82%D0%B1%D1%83%D0%BA%D0%B0+emachines+m355+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305083_popova_kazakova_francuzskiy_yazuyk_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306691_skachat_steam_fuckerdll.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307154_reshenie_zadach_po_matematike_8_klass.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ae64.bin
ed158b2108300d9b4a89f28f3d4998b41a16f6c0991223cee06d8c4920c8c59c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AE64 7992 bytes
font_00_sfnt_off0002480c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2480C 3556 bytes
font_01_sfnt_off0002558f.bin
c7d35db6fee84170d68e0d0b3954d80ad8aa4b7fa1ca1b9156b2dca13bb44f92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2558F 14584 bytes
font_02_sfnt_off0002829e.bin
90f4e957c70d5a0f1d4c147c78accce73d5726db40dea6329f73bd9d3b9b7121		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2829E 14908 bytes
font_04_sfnt_off0002c61a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C61A 6084 bytes
font_05_sfnt_off0002d5af.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5AF 3752 bytes

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