Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2a3bc06a7364cdf…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 11:29:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ae4755026daa45349b66a565dbd820b9 SHA-1: 4e16ea24805fca80573c9a1793ab48efff79840b SHA-256: e2a3bc06a7364cdf35f9b79ebd6d6a4a8997dc13e05476cda376344cf34f1c23
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 ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted, but the presence of this malicious link strongly suggests a phishing or malware delivery attempt.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4+%D0%BD%D0%B0+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+152+%D0%BD%D0%B0+%D0%B2%D0%BB%D0%B0%D1%81%D1%82%D0%B5%D0%BB%D0%B8%D0%BD+%D0%BA%D0%BE%D0%BB%D0%B5%D1%86&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184378_algebra_7_klass_mordkovich_uchebnik_chitat_onlayn.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189766_darya_doncova_audioknigi_skachat_besplatno_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185389_princessuy_zacharovannuyy_mir_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002437c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2437C 3556 bytes
font_01_sfnt_off000250ff.bin
44a24b8349c57eba4adcb76ca3e4a915b0ea2dfa6256a4ad603fe10ae52f9139		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250FF 14904 bytes
font_02_sfnt_off00027fbf.bin
d09923cbdc305950305c98b16fd731505617ef87fa48d967c0f3dc823af7b848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FBF 14640 bytes
font_03_sfnt_off0002aaf2.bin
75a0f1b8bbfda701356818d5c0c70796f02db543f94ee11ab7d01f1a35ad242e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAF2 7140 bytes
font_04_sfnt_off0002bfd8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFD8 6084 bytes
font_05_sfnt_off0002cf6d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF6D 3752 bytes

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