Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5b2e5476b696ba5…

MALICIOUS

PDF

186.7 KB Created: 2015-08-04 04:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 241c20c7aea61581c7201868278c70a3 SHA-1: 1b561f879ccf9e87a7f26d5245cc261547fc1949 SHA-256: e5b2e5476b696ba5d446f1a98ac7a91539249e8a2f34984ef1187587e2a926b1
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. This suggests the document's primary purpose is to lure users to a potentially harmful website.

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%B0%D0%BD%D0%BA%D0%B5%D1%82%D0%B0+%D0%BD%D0%B0+%D0%B7%D0%B0%D0%B3%D1%80%D0%B0%D0%BD%D0%BF%D0%B0%D1%81%D0%BF%D0%BE%D1%80%D1%82+%D0%BD%D0%BE%D0%B2%D0%BE%D0%B3%D0%BE+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D1%86%D0%B0+%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://img1.liveinternet.ru/images/attach/c/6//4287/4287946_stanovites_po_poryadku_na_veseluyu_zaryadku_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4211/4211547_skachat_igru_nhl_14_cherez_torrent_na_pc.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4285/4285516_skachat_programmu_dlya_videoyeffektov.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002486d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2486D 3556 bytes
font_01_sfnt_off000255f0.bin
10fbeba54f1f76a92d76620054b445906f0e129e0b8877022ef25b28022c235a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255F0 14432 bytes
font_02_sfnt_off00028309.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28309 14468 bytes
font_03_sfnt_off0002adbb.bin
7c6747e7cc79ea5de0848cc8e11a41082dd44441ed84881782b3bff8895062e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADBB 6688 bytes
font_04_sfnt_off0002c0d9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0D9 6084 bytes
font_05_sfnt_off0002d06e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D06E 3752 bytes

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