Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea1ddb64883b3ca7…

MALICIOUS

PDF

187.7 KB Created: 2015-08-08 11:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d54d727566610a87a8b368fde50a7b00 SHA-1: a703eb8080e4cb699cccb5b84df6eeae29e11cda SHA-256: ea1ddb64883b3ca70e1676a5cd8538b86c898af68a2d646381549eddeec6a2a6
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, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. The primary IOC is the malicious URL identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BC%D1%83%D0%BB%D1%8C%D1%82%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D1%81%D0%B2%D0%B8%D0%BD%D0%BA%D0%B0+%D0%BF%D0%B5%D0%BF%D0%B0+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8+%D0%BF%D0%BE%D0%B4%D1%80%D1%8F%D0%B4+%D0%B1%D0%B5%D0%B7+%D0%BE%D1%81%D1%82%D0%B0%D0%BD%D0%BE%D0%B2%D0%BA%D0%B8+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386675_skachat_videopleer_flv.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383930_razmeruy_na_pogonah_ml_serzhanta_policii.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387642_skachat_fps_creator_x9_torrent_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024aa5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AA5 3556 bytes
font_01_sfnt_off00025828.bin
ac6ccf922251bb980cb6e58eead5be74c545e6d0b360d309558a2dc0a15635fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25828 14588 bytes
font_02_sfnt_off0002855a.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2855A 14468 bytes
font_03_sfnt_off0002b00d.bin
079613ffc862b689aacdc54206c2763154519591c2defbdd2a772b841f7dc3c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B00D 7196 bytes
font_04_sfnt_off0002c515.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C515 6084 bytes
font_05_sfnt_off0002d4aa.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4AA 3752 bytes

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