Malicious PDF — malware analysis report

Static analysis result for SHA-256 920f9753239585cb…

MALICIOUS

PDF

185.0 KB Created: 2015-07-25 22:32:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ee613200ae545f7c15c80159b75b1483 SHA-1: 8f599d34b094609bccbee1ce42dc24afb3bfaf9a SHA-256: 920f9753239585cb688977b5f2e6fcce5154a81089c63efa3996c5806226b869
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

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 site. No scripts were extracted, and the document body was not sufficiently informative to determine a specific lure.

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%BB%D1%83%D0%BF%D0%B4%D0%B8%D0%B4%D1%83+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191530_skachat_alawar_smskey_keymaker.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203144_notuy_tango_serebryanaya_gitara.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195777_skachat_dopolneniya_dlya_sims_3_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024256.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24256 3556 bytes
font_01_sfnt_off00024fd9.bin
0b15765e0ffde021ff18a297aae0a957318898bb0f55ce04fdeb3687c81ab53f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FD9 14716 bytes
font_02_sfnt_off00027d6b.bin
174a748e656ecd6952924126d2026011874b923e4153d32e46ff3796b1239a0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D6B 14468 bytes
font_03_sfnt_off0002a81c.bin
a717719833fe698e14f00b9155a7a028be7a31d331af2199e47587ca7ff5bf98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A81C 6388 bytes
font_04_sfnt_off0002ba45.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA45 6084 bytes
font_05_sfnt_off0002c9da.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9DA 3752 bytes

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