Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bf435f2b14a53ce…

MALICIOUS

PDF

186.1 KB Created: 2015-07-27 19:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2ac8a630fd5eb7ddf64766b65ab1e65d SHA-1: 86936045d7299ae6b686e1edc599e581e10e4f9e SHA-256: 2bf435f2b14a53ce9aa2cea5d0569acbf2d31363a3a5842a69681e2808e080a8
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was not parsable, limiting further analysis of the 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=%D1%81%D0%BE%D0%B4%D0%B5%D1%80%D0%B6%D0%B0%D0%BD%D0%B8%D0%B5+%D0%BF%D1%87%D0%B5%D0%BB+%D0%B2+16+%D1%80%D0%B0%D0%BC%D0%BE%D1%87%D0%BD%D1%8B%D1%85+%D1%83%D0%BB%D1%8C%D1%8F%D1%85&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4208/4208180_skachat_fallout_3_torrent_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4215/4215800_programmuy_dlya_kitayskogo_samsung_galaxy_s3_i9300_mt6225.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4223/4223901_skachat_besplatno_klipuy_dyumina.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243c2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243C2 3556 bytes
font_01_sfnt_off00025145.bin
9ca67bf33339af6b829b51c1271dae01b1d4e26644138cc7702f6ebbf1b81770		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25145 14816 bytes
font_02_sfnt_off00027ed1.bin
4176e96a09370dbb87aac750b39be7881bf9ed6d2e989772a8554e026d661a29		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ED1 14532 bytes
font_03_sfnt_off0002a9c0.bin
1d0dc23dfb4f0d955042db864e8435255343bd922c9b7d445d3dce1dd282c372		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9C0 7104 bytes
font_04_sfnt_off0002be74.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE74 6084 bytes
font_05_sfnt_off0002ce09.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE09 3752 bytes

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