Malicious PDF — malware analysis report

Static analysis result for SHA-256 36a2c21d73565bd8…

MALICIOUS

PDF

185.6 KB Created: 2015-07-24 05:39:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2da04d538b64211d65c646a1a794aff6 SHA-1: 039c4316eeb6ddf504109d0201b091ae1f54c5fe SHA-256: 36a2c21d73565bd8aaa32895b0ae022d587fd01fe9803aefd33c08cc3b7fd732
90 Risk Score

Malware Insights

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

The PDF 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. This suggests the document's primary purpose is to lure the user to a harmful external resource.

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%BC%D1%8F%D1%82%D0%B0+%D0%BF%D1%80%D0%B8%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5+%D0%B4%D0%BB%D1%8F+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186246_mayorskie_pogonuy_rasstoyanie.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186161_skachat_drayver_dlya_printera_hp_laserjet_cp1025_color.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185696_tayna_4_princess_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002435e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2435E 3556 bytes
font_01_sfnt_off000250e1.bin
3717fbda3033322dcd98d73c329682e9925beca9e8b03293e35c88f49b159116		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250E1 14752 bytes
font_02_sfnt_off00027e7e.bin
633b6ea7284c43c571bd38ec0ac46f2609dfb164849cd75d59a98da8d08cc52a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E7E 14468 bytes
font_03_sfnt_off0002a92b.bin
bfda622eae1ceed72057a7c3a0a400530795117338ae4a7e4e865e824cd15004		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A92B 6748 bytes
font_04_sfnt_off0002bc7a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC7A 6084 bytes
font_05_sfnt_off0002cc0f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC0F 3752 bytes

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