Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b1f69036b9dcdc2…

MALICIOUS

PDF

188.4 KB Created: 2015-07-24 04:56:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ab1a28d5d4787b713e000231595c77ec SHA-1: 2f848b6d17b1a05b3d2dff8982a019cfd79ce150 SHA-256: 5b1f69036b9dcdc299405e96937f2de45f51325802d9ea8ae573c9f6a712a0db
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The primary IOC is the malicious URL, which likely serves as a dropper for further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494093-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494093-0
  • 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%80%D0%B0%D1%81%D1%87%D0%B5%D1%82+%D0%B1%D0%BE%D0%BB%D1%8C%D0%BD%D0%B8%D1%87%D0%BD%D0%BE%D0%B3%D0%BE+%D0%BB%D0%B8%D1%81%D1%82%D0%B0+%D0%B2+2015+%D0%B3%D0%BE%D0%B4%D1%83+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B+%D1%80%D0%B0%D1%81%D1%87%D0%B5%D1%82%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186714_dosrochnuyy_egye_po_fizike_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187806_skachat_klyuchi_dlya_kasperskogo_kaspersky_antivirus_for_wks.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184554_sims_3_polnaya_antologiya_19_v_1_skachat_torrent_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024b47.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B47 3556 bytes
font_01_sfnt_off000258ca.bin
c2c0f1cd263241078414c14d172296d1ab204489d1263cf2c58ae72e3650faa3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258CA 14924 bytes
font_02_sfnt_off0002874f.bin
20022a3da58261568a1d07c35df999c175b04708c1971dcb570f4eed8bc8d7ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2874F 14640 bytes
font_03_sfnt_off0002b285.bin
efaf8398cc4ab083887b9d57989220690769e2e171d6db60a491d32adcff7347		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B285 7236 bytes
font_04_sfnt_off0002c7c4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7C4 6084 bytes
font_05_sfnt_off0002d759.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D759 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.