Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e69f11b2bde1424…

MALICIOUS

PDF

185.3 KB Created: 2015-08-05 15:58:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0404a1c6253422d37cac291e45fc9a61 SHA-1: a99036b4efd8e25fbf5f3eeccda626e833caeebf SHA-256: 4e69f11b2bde1424126b90be245027631ea035cccd47e5b5e211241e241989b2
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/... is identified as a malicious redirector. The ML classifier also assigned a high probability of maliciousness. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%80%D0%B5%D0%BF+%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%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306070_aza_stan_lttuy_telearnasuy_programmasuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305685_shema_podklyucheniya_protivotumannuyh_far_cherez_rele.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306140_skachat_besplatno_drayver_na_printer_hp_laserjet_1005.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024292.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24292 3556 bytes
font_01_sfnt_off00025015.bin
687012dec0098eab436e7ec66ccb2d377526e15cc3a34cf689bad81617cd3433		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25015 14640 bytes
font_02_sfnt_off00027d47.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D47 14468 bytes
font_03_sfnt_off0002a7f9.bin
6af3551d33cd29ece6854906cec931d1d3f7219af16acae41c239553ee2b1c82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7F9 6712 bytes
font_04_sfnt_off0002bb36.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB36 6084 bytes
font_05_sfnt_off0002cacb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CACB 3752 bytes

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