Malicious PDF — malware analysis report

Static analysis result for SHA-256 e217abc30e61ecc0…

MALICIOUS

PDF

184.8 KB Created: 2015-08-05 14:09:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 99a3db2422d5c17d5f5d240607c36473 SHA-1: 26e375fbddd8044217fad1b85a4801d1e3096c23 SHA-256: e217abc30e61ecc038dbb330cb05f4fcf3e6529555f961b0bf972fd18c0ac742
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF 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, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution page. No scripts were extracted, and the document body was not parsable.

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%BF%D0%B5%D1%81%D0%BD%D0%B8+%D1%8D%D0%BB%D0%B2%D0%B8%D0%BD+%D0%B8+%D0%B1%D1%83%D1%80%D1%83%D0%BD%D0%B4%D1%83%D0%BA%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304557_yelektronnuyy_didzhey_dance_8_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304704_skachat_cherez_torrent_nasha_rasha_6_sezon.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304885_flesh_igruy_skachat_besplatno_na_kompyuter.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024099.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24099 3556 bytes
font_01_sfnt_off00024e1c.bin
1a86b2568079faa8e9d3730c6b2fc341fffa0f0e3b12698d5ebab7a963de19f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E1C 14488 bytes
font_02_sfnt_off00027aff.bin
82e1ef65e79e4858764d30489de1a6bb262c3a4ae3ff71e2763dbba2a8765446		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AFF 14468 bytes
font_03_sfnt_off0002a5b3.bin
a73b1f067059dc9b88fadb37e537319fb467a3f25c28394892168fa4a083016f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5B3 6772 bytes
font_04_sfnt_off0002b93a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B93A 6084 bytes
font_05_sfnt_off0002c8cf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8CF 3752 bytes

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