Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb37a1d02ce4dfcd…

MALICIOUS

PDF

187.8 KB Created: 2015-08-05 16:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1f43b3e9f25cac781c8d74aee865b81d SHA-1: ff50543b5262c7d752bdce65608d6f8e0797e485 SHA-256: eb37a1d02ce4dfcd6f1b0f8032d7753a326b4c2ba6aa7cf9c453d3765b0d2475
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was truncated, 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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0%D0%B2%D0%B8%D1%82%D0%B5%D0%BB+%D0%B2%D1%81%D0%B5+%D0%BE%D1%84%D0%B8%D1%86%D0%B8%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%BA%D0%B0%D1%80%D1%82%D1%8B+%D1%80%D0%B5%D0%BB%D0%B8%D0%B7%D0%B0+q1+2014&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304872_prohozhdenie_periodicheskih_medosmotrov.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306298_skachat_mod_na_oruzhiya_dlya_maynkraft_151.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305910_skachat_blank_sertifikata_sootvetstviya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248cd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248CD 3556 bytes
font_01_sfnt_off00025650.bin
010ee4520402fb046aa09db6a3ef410704a1366930cbe2230611309d57d9bc20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25650 14900 bytes
font_02_sfnt_off0002852d.bin
e56cbfa785f189005bcf42058b12ac0b6358a426ef4c752c98f473c75e875470		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2852D 14612 bytes
font_03_sfnt_off0002b01e.bin
3bcc71198ab2fbb622c18c07f050f3452020ca37cd6c114420cff7d698b012f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B01E 7280 bytes
font_04_sfnt_off0002c57a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C57A 6084 bytes
font_05_sfnt_off0002d50f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D50F 3752 bytes

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