Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b814ab5bdadcfc4…

MALICIOUS

PDF

185.8 KB Created: 2015-07-28 01:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a0c1f8bbcab664b8a24111af8b875faf SHA-1: 9c2f350f57852a81a27d5414072f9e61ec0dc9f6 SHA-256: 8b814ab5bdadcfc49fd2dd88c09c3368a59b1c05c187949215bca029f0ec7f18
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website. No scripts were extracted from this sample, limiting further analysis of its behavior.

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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BF%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B2+%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4232/4232039_koduy_vosstanovleniya_na_galaktiku_znakomstv_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4217/4217202_vse_drayveruy_dlya_materinskoy_platuy_msi_ms7210_ver_30.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4230/4230253_pravila_napisaniya_yesse_po_russkomu_yazuyku.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024476.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24476 3556 bytes
font_01_sfnt_off000251f9.bin
9da4dcc008ea176ed75c76c94fcfaeff087d63cbae251897d80cf0d0c6e051ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x251F9 14440 bytes
font_02_sfnt_off00027f31.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9
pdf-font-stream PDF embedded font (sfnt) at offset 0x27F31 14468 bytes
font_03_sfnt_off0002a9e0.bin
fc7a5fa1f72407a7c67cc3fac442bc423c90215753a0f6cd9b0ef5510c4a78b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9E0 6808 bytes
font_04_sfnt_off0002bd6d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD6D 6084 bytes
font_05_sfnt_off0002cd02.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD02 3752 bytes