Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58788ab28406a0e…

MALICIOUS

PDF

185.1 KB Created: 2015-08-05 14:00:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f1d4cc5b7dbe73095c2c0c2a832d23a8 SHA-1: 0c9c6afad5ab17579ef01fd56c8178654ed94c30 SHA-256: c58788ab28406a0e707f2b5d76781a5da22055d3ac2e7fa43ae4b5a0a2e7d703
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier as malicious and contains a link to a known malicious redirector. The embedded URL points to 'botcraftman.ru', which is associated with malicious redirector infrastructure. This suggests the document is intended to lure users to a compromised or malicious site.

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+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80%D0%B0+%D0%BD%D0%B0+%D0%BB%D0%B5%D0%BD%D0%BE%D0%B2%D0%BE+g580&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304371_yero_moduy_fallout_new_vegas.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304774_skachat_windows_xp_64_bit_sp3_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304559_zune__nokia_lumia_800__.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ffa.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FFA 3556 bytes
font_01_sfnt_off00024d7d.bin
818c100e1a5f9de0f6b971e70993dba66098d363c22d95103b9f7ffda50dd2aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D7D 14608 bytes
font_02_sfnt_off00027aef.bin
0f6ddc899ac305f6402831c7bd066905b3181ac4cf14e2d0a0b4ac65ac67afb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AEF 14640 bytes
font_03_sfnt_off0002a61e.bin
f87b6db9de07ca5821e0f6c22ea038e6926fa1539daccb41b010660f59bcc9be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A61E 7060 bytes
font_04_sfnt_off0002baac.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAAC 6084 bytes
font_05_sfnt_off0002ca41.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA41 3752 bytes

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