Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8cf66d5c93755c0…

MALICIOUS

PDF

183.2 KB Created: 2015-07-24 20:45:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a677404e4df4329484c573402f51fdde SHA-1: 82e2044b9e937cfad490b219ab9eaa36d250a804 SHA-256: b8cf66d5c93755c0955c893e39e9e29a9ba4922e4dd750fa17f514454567025f
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/ is identified as a malicious redirector. While no scripts were extracted, the presence of this malicious link strongly suggests an attempt to lure the user to a harmful destination, likely for phishing or malware delivery.

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=%D0%B7%D0%B2%D1%83%D0%BA%D0%B8+%D0%BA%D0%BE%D1%80%D1%88%D1%83%D0%BD%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184451_chak_palanik_ucelevshiy_skachat_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191525_yunuye_modeli_foto_yaponii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193577_skachat_programmu_obnaruzheniya_vayfaya_dlya_noutbuka.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023a4d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A4D 3556 bytes
font_01_sfnt_off000247d0.bin
335cb6412c8ab23df432c236b93d7f0957128e69e148cf7062da768c3df94cef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247D0 14840 bytes
font_02_sfnt_off00027661.bin
8d02a0cf27bd077de57e925d1108a2dc233dc6ea8f47ab60362585d4138bc128		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27661 14780 bytes
font_03_sfnt_off0002a1e4.bin
ea4707143bd7916a70a7e36b1b00c7268dacfbc38e44eaade9b892ff518d44ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1E4 6108 bytes
font_04_sfnt_off0002b2ea.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2EA 6084 bytes
font_05_sfnt_off0002c27f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C27F 3752 bytes

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