Malicious PDF — malware analysis report

Static analysis result for SHA-256 feb7e2cb1207e70d…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 14:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 059171368542ee9d7790558ea8041287 SHA-1: 052a0748a6bf797e52abf8d7ae5c369b0da5d34f SHA-256: feb7e2cb1207e70dfb70f227263b8a9cd546ef2a506117819cd9388dc78807f4
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 a known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted from this sample.

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%B0%D1%81%D1%82%D1%80%D0%B0%D0%BB+2+%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/5//4189/4189160_skachat_shtrafbat_vse_serii_cherez_torrent_v_horoshem_kachestve.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187265_otvetuy_po_fizike_i_exam_ru.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190901_men_of_war_assault_squad_2_skachat_torrent_2014.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024580.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24580 3556 bytes
font_01_sfnt_off00025303.bin
23d837d31609572e7f82c2343d022e1004d2fa4cd6523753805870eabede5914		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25303 15324 bytes
font_02_sfnt_off0002821f.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2821F 14468 bytes
font_03_sfnt_off0002acd1.bin
a4bb6e92762259eeb18bd333abba74d9874d6504bfc2c6b26291bfc03a0f9f9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACD1 6320 bytes
font_04_sfnt_off0002bec1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEC1 6084 bytes
font_05_sfnt_off0002ce56.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE56 3752 bytes

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