Malicious PDF — malware analysis report

Static analysis result for SHA-256 968ea4ec7e282fad…

MALICIOUS

PDF

186.8 KB Created: 2015-07-23 21:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2c21b8a364fa1c65601dc206ae40bfba SHA-1: a0cf4d56e609bb164ad16da05d7c0825b9fed0e5 SHA-256: 968ea4ec7e282fad0583a81222dea4d95433d87891b753db3dc0b5a41ac1215c
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 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 the 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%BF%D0%BE%D0%BD%D0%B5%D0%B4%D0%B5%D0%BB%D1%8C%D0%BD%D0%B8%D0%BA+%D0%BD%D0%B0%D1%87%D0%B8%D0%BD%D0%B0%D0%B5%D1%82%D1%81%D1%8F+%D0%B2+%D1%81%D1%83%D0%B1%D0%B1%D0%BE%D1%82%D1%83+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D0%BD%D0%B8%D0%B3%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184647_skachat_albom_alekseya_bryanceva_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184432_chuzhestranka_2_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002483c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2483C 3556 bytes
font_01_sfnt_off000255bf.bin
c6e538261ac9bab50df7da8e78b0981d4649efb0a2fa851cb99209015bbb0069		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255BF 14616 bytes
font_02_sfnt_off00028317.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28317 14468 bytes
font_03_sfnt_off0002adc9.bin
a9651c19b5a4afbb43b88637f10e0d1b37ac247477729341c0a0ee4713e3ce37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADC9 6748 bytes
font_04_sfnt_off0002c134.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C134 6084 bytes
font_05_sfnt_off0002d0c9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0C9 3752 bytes

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