Malicious PDF — malware analysis report

Static analysis result for SHA-256 6edf631733efa1f2…

MALICIOUS

PDF

185.1 KB Created: 2015-07-25 06:23:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8f9139237f38ff3de1c24a7021f46ad5 SHA-1: 9444207883f723bcedd730bcc21dfffd0a8cafb5 SHA-256: 6edf631733efa1f2e5bdd9bee3e9ebad52e812d2efdf84062c66993c7de5e906
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirects, suggesting the document's purpose is to lure users to a harmful 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%B2%D1%85+%D0%B4%D0%BB%D1%8F+%D0%BA%D1%81+16+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199552_fayl_host_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188742_battlefield_1942_the_road_to_rome_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190024_skachat_geroi_mecha_i_magii_3_vo_imya_bogov.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_off00024044.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24044 3556 bytes
font_01_sfnt_off00024dc7.bin
55d6c2f06400e9b3078ae5fc62cafa16dd198b0adebd3294537ed7a4e8a6047b
pdf-font-stream PDF embedded font (sfnt) at offset 0x24DC7 14960 bytes
font_02_sfnt_off00027ba8.bin
61ca031b619c56ea1ff150196f7f50aab3ea6e3d8c88edf177ce6ed3aa7dc51b
pdf-font-stream PDF embedded font (sfnt) at offset 0x27BA8 14532 bytes
font_03_sfnt_off0002a699.bin
2fb9eefc6196fc017a6814b08cbdc78d853a362a4f4ad97d8954a79738c87487
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A699 6932 bytes
font_04_sfnt_off0002bac2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAC2 6084 bytes
font_05_sfnt_off0002ca57.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA57 3752 bytes