Malicious PDF — malware analysis report

Static analysis result for SHA-256 2269fba486820dec…

MALICIOUS

PDF

185.5 KB Created: 2015-07-24 08:10:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3653b29779dd1552d199926652ce733d SHA-1: f5bc44d9b3e29182fd6e2b75b946cdf0a7efcf52 SHA-256: 2269fba486820dec6cf9347d43e431c97ad1d40821c435043bbcf12b367a0239
90 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 critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent. No scripts were extracted from this sample, limiting the analysis of its specific payload delivery mechanism.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%88%D0%B5%D0%B9%D0%B4%D0%B5%D1%80%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+164&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185523_skachat_igru_russkaya_ruybalka_3_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190044_skachat_gta_na_russkih_mashinah_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189253_kniga_bogatuyy_papa_bednuyy_papa_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241c8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241C8 3556 bytes
font_01_sfnt_off00024f4b.bin
0c60db476195c93145528a9d5321f389691b87e6490bcd52d29db57eaa8610ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F4B 14608 bytes
font_02_sfnt_off00027d0d.bin
3065135c77d400d8e33a44559ce4e5ee93621b8daff566190e7653656e3e8542		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D0D 14520 bytes
font_03_sfnt_off0002a7e1.bin
d94a6187f1c3ed6118b2e6241b09cd93f1944c68b27f92f80947f27ae17c5d53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7E1 7008 bytes
font_04_sfnt_off0002bc3c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC3C 6084 bytes
font_05_sfnt_off0002cbd1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBD1 3752 bytes

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