Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e252901d8c8bd53…

MALICIOUS

PDF

185.5 KB Created: 2015-08-08 13:14:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9bafa32c789c3ea139813b644ab4edd6 SHA-1: 68d9cec9d8151b403100dab93ceb5776c8aca4bc SHA-256: 7e252901d8c8bd53fc3daa62c35c744069813e2692227ce8545ce46c7c2598ed
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 http://botcraftman.ru/... is confirmed as a malicious redirector, suggesting the document's purpose is to lure users to a harmful site. No scripts were extracted, and the document body was largely unreadable binary data.

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%BA%D0%BD%D0%B8%D0%B3%D0%B8+%D0%BF%D0%BE+%D1%84%D0%BE%D1%82%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384537_biznes_v_stile_fank_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384287_onlayn_ruybalka_atom_fishing_skrinuy_mirovuyh_rekordov.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386693_220695_04.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002415f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2415F 3556 bytes
font_01_sfnt_off00024ee2.bin
d35709f0ae7e83cdd018406b84b1557964352489457cd3ed970edf061b916757		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EE2 15796 bytes
font_02_sfnt_off00027f7b.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F7B 14468 bytes
font_03_sfnt_off0002aa2d.bin
072e0516a2846eecbbcc7acb9b4cdcb93377fbbd1ab66712fdba8e3cdab128f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA2D 6412 bytes
font_04_sfnt_off0002bc4b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC4B 6084 bytes
font_05_sfnt_off0002cbe0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBE0 3752 bytes

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