Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e40315c2e35962f…

MALICIOUS

PDF

186.5 KB Created: 2015-07-24 13:53:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7b871d7b9979b003d33d0eeecb0ca450 SHA-1: 0445b875ad536fbb6782c5199a2f2d7e39186ab1 SHA-256: 0e40315c2e35962f8e1ebc2f905e59045cd2360509a83eb754c011a0d1376c02
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. While no scripts were extracted, the presence of a malicious URL suggests an attempt to lure the user to a compromised site, likely for phishing or malware distribution. The document body appears to be malformed or truncated, preventing further analysis of its content.

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%B3%D0%B0%D1%80%D0%B8%D1%81+%D0%BC%D0%BE%D0%B4+14+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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://img0.liveinternet.ru/images/attach/c/5//4192/4192239_skachat_moduy_na_maynkraft_152_toomanyitems.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185166_pravila_dorozhnogo_dvizheniya_ukraina_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192212_skachat_igru_gears_of_war_2_cherez_torrent_na_kompyuter.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_off000245a2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245A2 3556 bytes
font_01_sfnt_off00025325.bin
c839456a192c067ebd07e948bc78b4a9e84e1fbd9b1211022d3445637d6d94da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25325 15212 bytes
font_02_sfnt_off0002824b.bin
67d53b5d93f9c1a2a208a20cc40158f0d1b9c29be983670d6b7c684d37a817b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2824B 14468 bytes
font_03_sfnt_off0002acfb.bin
da2168b7cee65f417b3f79a10ef9172bbdaba93d31660d8c95de5c92f3825e1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACFB 6672 bytes
font_04_sfnt_off0002c02e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C02E 6084 bytes
font_05_sfnt_off0002cfc3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFC3 3752 bytes

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