Malicious PDF — malware analysis report

Static analysis result for SHA-256 33c2f8bd6176744f…

MALICIOUS

PDF

187.2 KB Created: 2015-07-24 03:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a370af10b94fd8119f226825d784563c SHA-1: d9487a3ea3e7e07cece1fd3d0763d418fa16cd48 SHA-256: 33c2f8bd6176744f69db7d1886d5c3fa88d0e0692d6ed0c1be2a7da4086cae47
90 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 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 distribution site. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

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%BF%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D1%8B+%D0%B2+%D0%B0%D1%80%D0%BC%D0%B8%D1%8E+%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%B2+%D0%B4%D0%BE%D0%BC%D0%B0%D1%88%D0%BD%D0%B8%D1%85+%D1%83%D1%81%D0%BB%D0%BE%D0%B2%D0%B8%D1%8F%D1%85&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187390_uzbek_sikish_video.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185278_kaspiyskiy_gruz_pidzhaki_kostyumuy_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187141_naryaddopusk_na_proizvodstvo_rabot_na_vuysote_blank_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024887.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24887 3556 bytes
font_01_sfnt_off0002560a.bin
dd00b4e059c8a6c300199ce59b7a09be9ec3a11848dd1bfd6064dc98c2ceef8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2560A 14640 bytes
font_02_sfnt_off0002840b.bin
0c22c1c4ad0b4d9ec586067dccb2d6c137be97cfbc9a4ba863d0b3d1d4bfc3d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2840B 14588 bytes
font_03_sfnt_off0002af1d.bin
cf7adec23613eeb287f9249992a89faacc05c894e5775e026f457ac40891150f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF1D 6920 bytes
font_04_sfnt_off0002c303.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C303 6084 bytes
font_05_sfnt_off0002d298.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D298 3752 bytes

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