Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ddb0c794d4bba26…

MALICIOUS

PDF

189.5 KB Created: 2015-07-26 01:00:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0617471c65df23dc4da10ed41b2fef2f SHA-1: 013d81d2e4ae87705fb64484ecb75d6bfcfa7a8c SHA-256: 5ddb0c794d4bba26940a2e8088ef64fb79dd6902ddc0471cfae3d28153838c0d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious URL suggests the document is designed to lure the user to a harmful site, likely for phishing or malware distribution.

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%B8%D0%B3%D1%80%D1%83+18+%D1%81%D1%82%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D1%85+%D0%BA%D0%BE%D0%BB%D0%B5%D1%81+%D0%BF%D0%BE+%D0%B4%D0%BE%D1%80%D0%BE%D0%B3%D0%B0%D0%BC+%D0%B0%D0%BC%D0%B5%D1%80%D0%B8%D0%BA%D0%B8+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191013_skachat_simulyator_volka_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192041_skachat_igruy_na_nokia_asha_305.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186983_filmuy_3d_skachat_besplatno_v_horoshem_kachestve_torrent.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00025137.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25137 3556 bytes
font_01_sfnt_off00025eba.bin
199408b41409aec5f84071363067cfa694e7a04280578711e1875d075b3a8b2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25EBA 14728 bytes
font_02_sfnt_off00028c3c.bin
cc89568594106d53ebf5ef0aef853d000668570d0d7c5223eb4ee066651795e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28C3C 14532 bytes
font_03_sfnt_off0002b72c.bin
7cddf7f43c8d74724ee2436fbd0272631c9d9e15c3a4e2dd1b2141fdcc948816		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B72C 7148 bytes
font_04_sfnt_off0002cc1e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC1E 6084 bytes
font_05_sfnt_off0002dbb3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DBB3 3752 bytes

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