Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee77ee9c201eaf3c…

MALICIOUS

PDF

186.9 KB Created: 2015-07-24 23:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fc49dd8ff7462a1fc3200836183bd0da SHA-1: ec4d15e015359697b5a432d168118b01a82692e0 SHA-256: ee77ee9c201eaf3c638664b9f840316e989281f49484f8c885c7fbc2c9299012
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a link to a known malicious redirector URL, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BA%D0%BB%D0%B8%D0%BF%D1%8B+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B2+%D1%85%D0%BE%D1%80%D0%BE%D1%88%D0%B5%D0%BC+%D0%BA%D0%B0%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195592_trafaretuy_cifr_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184773_raspisanie_prigorodnuyh_poezdov_barnaul.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191210_skachat_sbornik_radio_vanya_cherez_torrent_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024729.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24729 3556 bytes
font_01_sfnt_off000254ac.bin
6334d6f3428ca8cf5f55fd0f0a267b4187e901f1410ed53d0a40521804229b0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254AC 14416 bytes
font_02_sfnt_off000281e6.bin
29ecf83c6332615f26ab802bd9d6d2024824707195606975c2a79e9f380f7f7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281E6 14588 bytes
font_03_sfnt_off0002acf6.bin
90d42275922b7a04c769fe2880a8c8bb2b6bef68af9545f77843b9125072d26f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACF6 7180 bytes
font_04_sfnt_off0002c1d5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1D5 6084 bytes
font_05_sfnt_off0002d16a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D16A 3752 bytes

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