Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3318d54466c153…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 09:52:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c9cbccbd1624521579a712aa7bac356e SHA-1: 06cd4b07ccb6b4c6889ac22924d0d85d1967be0e SHA-256: ed3318d54466c153112b4683b33dbfc009f2184af5e7661b0975770ba22ef03b
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 containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D0%BA%D1%80%D0%B8%D1%88+2+%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://img1.liveinternet.ru/images/attach/c/6//4383/4383851_skachat_igru_pobeg_iz_kuryatnika.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384499_davay_diego_davay_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384248_skachat_php_admin.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240cc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240CC 3556 bytes
font_01_sfnt_off00024e4f.bin
6398bb9220a511491c663704479027db8fce007ceda0f3e21f731af2aa7c7504		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E4F 14596 bytes
font_02_sfnt_off00027b3a.bin
7ff5adba8695c16805727c31eea0585594606d1764cb32bf89c57132559c5bcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B3A 14520 bytes
font_03_sfnt_off0002a60e.bin
1e809f8a17f7ecef6dea355d63a975b8392fe9657a5c6c28b7f840cad589c33c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A60E 6724 bytes
font_04_sfnt_off0002b975.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B975 6084 bytes
font_05_sfnt_off0002c90a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C90A 3752 bytes

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