Malicious PDF — malware analysis report

Static analysis result for SHA-256 119b85fea185d23c…

MALICIOUS

PDF

184.5 KB Created: 2015-07-26 17:19:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2ac91622dd8c826d091d1b6c6c78b127 SHA-1: cfd0f6280481499a835a89e07d390ca78c3de510 SHA-256: 119b85fea185d23c050c925c26010b28149edcbf9d63dab77d26ed88ba855437
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is associated with malicious activity. While no scripts were extracted, the presence of a malicious link strongly suggests an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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%BA%D1%80%D1%8F%D0%BA+%D0%B4%D0%BB%D1%8F+assassins+creed+4+black+flag&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184635_biznes_plan_po_razvedeniyu_kur_kurinuyy_biznes_skachat_primeruy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4215/4215419_sms_box_pozdravleniya_skachat_besplatno_polnuyu_versiyu.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4219/4219886_skachat_windows_xp_chip_2015_torrent.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a354.bin
4937317fa2fbfdb0fd357d30f64c162e6875e7b7e8be906277d1cc996fe7c9b1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A354 7204 bytes
font_00_sfnt_off00023b1a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B1A 3556 bytes
font_01_sfnt_off0002489d.bin
3ac54423dcc960d6063c8aef011904446e0b21aad334d888903a46302fda1015		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2489D 15340 bytes
font_02_sfnt_off000277ec.bin
4168f0007096b58320dfa6997bb6221c0441b2fe7cfacf37f3590693e06734f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x277EC 14696 bytes
font_04_sfnt_off0002b84d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B84D 6084 bytes
font_05_sfnt_off0002c7e2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7E2 3752 bytes

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