Malicious PDF — malware analysis report

Static analysis result for SHA-256 da1aa69d578b03f9…

MALICIOUS

PDF

185.2 KB Created: 2015-08-08 11:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 208506eb8c827025087580531a4076bd SHA-1: 738c7403fd174cd1b16cb7ff2f25598eec1f2541 SHA-256: da1aa69d578b03f96cf6ee8194f299db3b65942115cf16e3ee576e59b17008db
92 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 strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is associated with malicious redirects. No scripts were extracted, but the presence of a malicious link 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%BA%D0%BB%D1%8F%D1%82%D0%B2%D0%B0+%D0%BA%D0%B0%D0%B4%D0%B5%D1%82%D0%B0+%D1%82%D0%B5%D0%BA%D1%81%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387594_skachat_horror_igruy_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384265_luchshaya_programma_dlya_postroeniya_silovogo_fundamenta.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385305_tipovoy_dogovor_na_okazanie_uslug_po_remontu_avtomobilya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024256.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24256 3556 bytes
font_01_sfnt_off00024fd9.bin
ba44119423aca50bfd9931cfc8bd8908d94fb8c973dd20dbd5ba4f2d5721dd2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FD9 15068 bytes
font_02_sfnt_off00027ec4.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EC4 14468 bytes
font_03_sfnt_off0002a977.bin
b6e0cbfe04bac3d5fba2e54f28c4ffcc9accb34e30ef58925ccf9708bb5f02d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A977 6224 bytes
font_04_sfnt_off0002bae2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAE2 6084 bytes
font_05_sfnt_off0002ca77.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA77 3752 bytes

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