Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d115a354ddba9c3…

MALICIOUS

PDF

188.0 KB Created: 2015-07-23 20:50:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e31aa30b274f528edd58943e1f800771 SHA-1: 935fb3f2daaa11c8e5c56d2bad213d4717e63948 SHA-256: 7d115a354ddba9c37b44458e34f3e350b6e256ee9106cc007e0b0c9ead331346
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for linking to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful site, likely for phishing or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494304-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494304-0
  • 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%B4%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80+%D0%BA%D1%83%D0%BF%D0%BB%D0%B8-%D0%BF%D1%80%D0%BE%D0%B4%D0%B0%D0%B6%D0%B8+%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%BE%D1%82%D0%BE%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184659_skachat_igru_zuma_2_besplatno_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184297_skachat_stalker_chistoe_nebo_torrent_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183189_lada_proekt_s.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024e54.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E54 3556 bytes
font_01_sfnt_off00025bd7.bin
c3a53dcaf4cff7572540c977d79c1d8d9c8f37ebc4c11848f353b2855bd62895		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25BD7 14272 bytes
font_02_sfnt_off00028871.bin
a8dfedfb1052726c006ed8aca7de6f2089d9f5fc117bebe84e6a00d23cea6136		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28871 14468 bytes
font_03_sfnt_off0002b31f.bin
ae71b61e583b289863046bd0a8e8ec3b7e916c445028228a4dad765b250cde1c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B31F 6680 bytes
font_04_sfnt_off0002c642.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C642 6084 bytes
font_05_sfnt_off0002d5d7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5D7 3752 bytes

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