Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b2c8af667dc1955…

MALICIOUS

PDF

184.8 KB Created: 2015-07-24 05:08:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c69a53643e910e2378a598443402bc84 SHA-1: 5af4f529ef8c325cf696357e0dc3e2d6aa0717c4 SHA-256: 0b2c8af667dc19557a2f2bf012eade295f2c946331cc832a481c337e2a73f722
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page.

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=warcraft+3+frozen+throne+%D0%BA%D0%B0%D1%80%D1%82%D1%8B+%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://img0.liveinternet.ru/images/attach/c/5//4184/4184665_mts_970h_drayver.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187536_skachat_novuyy_albom_butuyrki_2015_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184611_master_yeliksirov_335_gayd.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e2b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E2B 3556 bytes
font_01_sfnt_off00024bae.bin
6a89660f9231bc5d36a0491d7187480087cd95a56579de0a87b4cbfd442041d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BAE 14772 bytes
font_02_sfnt_off00027973.bin
da0f09f032af73708dff4b6391b240930ed9965eeb0fa3052eb93cd76a22b8ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27973 14828 bytes
font_03_sfnt_off0002a521.bin
0143b9c16e0b7414f5db1f30c8571e6541d41a91f707dc6972ca928351f6b134		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A521 6988 bytes
font_04_sfnt_off0002b969.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B969 6084 bytes
font_05_sfnt_off0002c8fe.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8FE 3752 bytes

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