Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d5f18da597c415…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 23:47:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bba2138b80c6d690320013300b7eaa1d SHA-1: 74c014d7eec64bd39633e3a89bd69656d0215415 SHA-256: f2d5f18da597c4156d9ee2b6d02580582fd90e2d97135c5aa1c9ef0b0d174cf6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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%9F%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D1%80%D0%B0%D1%81%D1%87%D0%B5%D1%82+%D0%BA%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D0%B8+%D0%BF%D0%BE%D0%BC%D0%B5%D1%89%D0%B5%D0%BD%D0%B8%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194329_gazeta_perekrestok_chebarkul.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189811_igra_kazaki_2_napoleonovskie_voynuy_skachat_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190723_scenariy_koncertnoy_programmuy_na_den_rossii.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244ed.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244ED 3556 bytes
font_01_sfnt_off00025270.bin
7e64c968c750df86f24ab51058564947dbfdd65f91ba6b487b60a0da69d1d254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25270 14716 bytes
font_02_sfnt_off0002809f.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2809F 14468 bytes
font_03_sfnt_off0002ab51.bin
d7bddc7960f40298e2dcc063699c14417fb73e5340c259141f12c0d6185f7e12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB51 6400 bytes
font_04_sfnt_off0002bd53.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD53 6084 bytes
font_05_sfnt_off0002cce8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCE8 3752 bytes

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