Malicious PDF — malware analysis report

Static analysis result for SHA-256 59c4370c220f4240…

MALICIOUS

PDF

187.3 KB Created: 2015-07-24 09:13:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 12c9ba317d713050f32392e36f1b8a5a SHA-1: 41820e8785d4b4527b3072b1314cf42289dd9e9c SHA-256: 59c4370c220f42404f863e64229bcf03df79b2c1dbd38c6056e3124eb0e720d0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF 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 redirect the user to a malicious site, likely for further exploitation or credential harvesting.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+mount+and+blade+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F+%D0%B3%D0%B5%D1%80%D0%BE%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184491_maykrosoft_ofis_2010_skachat_besplatno_russkaya_versiya_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185015_licenzionnuyy_klyuch_vkduty_pro.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185275_prohozhdenie_igruy_stalker_chistoe_nebo_holodnaya_krov.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002453e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2453E 3556 bytes
font_01_sfnt_off000252c1.bin
1a175c43b37c8fcae730c3a3e91af986b4e0a3278f60240afd8f821437c3bf93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252C1 14916 bytes
font_02_sfnt_off000280f4.bin
08dc459a9563fe4993cb10dcbb12c085587a9aa73f20d320486fdd743a2c5999		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280F4 14876 bytes
font_03_sfnt_off0002acdd.bin
4500690c0579bb9a16140724cfb73fd67da5b112ef6319c3d261a6b3dabf0bc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACDD 7632 bytes
font_04_sfnt_off0002c36d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C36D 6084 bytes
font_05_sfnt_off0002d302.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D302 3752 bytes

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