Malicious PDF — malware analysis report

Static analysis result for SHA-256 554725091c53e345…

MALICIOUS

PDF

187.3 KB Created: 2015-08-08 09:36:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f31908908a103135bedac00aaadc7415 SHA-1: 6052129700816e674bdcea4336c7ecca8b98414a SHA-256: 554725091c53e34549e990e5d15ddbad7080b161dc591b3acc14badf81bf1091
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%83%D0%B1%D0%B8%D1%82%D1%8C+%D0%BF%D0%B5%D1%80%D0%B5%D1%81%D0%BC%D0%B5%D1%88%D0%BD%D0%B8%D0%BA%D0%B0+%D0%B0%D1%83%D0%B4%D0%B8%D0%BE%D0%BA%D0%BD%D0%B8%D0%B3%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383904_skachat_film_matrica_na_telefon.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383773_skachat_besplatno_dogovor_na_okazanie_transportnuyh_uslug.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383793_proshivka_modema_huawei_e1550_pod_vseh_operatorov.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000249bc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249BC 3556 bytes
font_01_sfnt_off0002573f.bin
8df91b51574ccf068270991e7e954fa107fdd77159cf3161d37a37742c4cc39f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2573F 14888 bytes
font_02_sfnt_off00028531.bin
c521cb7f32363069232cb6cf023e13d81dfc7f2346484feaa89f0b3c8cd570ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28531 14520 bytes
font_03_sfnt_off0002b003.bin
657a1507d91f5eaec46d244edaf1e56298d1e38f44d8ff4b8e8dbf2165e4be3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B003 6736 bytes
font_04_sfnt_off0002c354.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C354 6084 bytes
font_05_sfnt_off0002d2e9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2E9 3752 bytes

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