Malicious PDF — malware analysis report

Static analysis result for SHA-256 588491ac53ab7d2c…

MALICIOUS

PDF

184.8 KB Created: 2015-07-23 20:22:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 15794018ebf4a6d486d50f0d45cac192 SHA-1: 259ce08066ad82a84bc258f5a701a24327eca6a2 SHA-256: 588491ac53ab7d2c5d8f8b3e31bc018a82646e08bd4cf9cc302e25de4550a32e
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 link to a known malicious redirector infrastructure. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

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%D0%BE%D1%80%D0%BE%D0%BB%D1%8C+%D0%B8+%D1%88%D1%83%D1%82+%D1%82%D0%BE%D0%B4%D0%B4+%D0%B0%D0%BA%D1%82+1+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184527_skachat_programmu_na_telefon_detektor_lzhi.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184530_olimpoks_programma.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184489_semago_diagnosticheskiy_albom_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002407a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2407A 3556 bytes
font_01_sfnt_off00024dfd.bin
b50b51bab85ad3d9746552f0adbd07e4da558283994f0d402e2000dfff239caa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DFD 14588 bytes
font_02_sfnt_off00027bd8.bin
c521cb7f32363069232cb6cf023e13d81dfc7f2346484feaa89f0b3c8cd570ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BD8 14520 bytes
font_03_sfnt_off0002a6aa.bin
2b85b3c413b3af3720eb240ac671cb77278d4379b393c51a0dd31d79e13d07aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6AA 6588 bytes
font_04_sfnt_off0002b985.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B985 6084 bytes
font_05_sfnt_off0002c91a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C91A 3752 bytes

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