Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ba58ed657a23404…

MALICIOUS

PDF

186.9 KB Created: 2015-07-23 20:43:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 988026d9d56cd088b1326486f544e71c SHA-1: 06856bfda084e7bf49ae4c5c92083bae0d1bc144 SHA-256: 8ba58ed657a2340438533889dcbee4a91ad2625e1f4a63ddc01d54fd067e359a
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. The embedded URL points to 'http://botcraftman.ru/', which is associated with malicious activity. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or malware delivery attempt.

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%80%D0%B0%D0%B7%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%BA%D0%B0+%D1%83%D1%80%D0%BE%D0%BA%D0%B0+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+5+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%BE+%D1%84%D0%B3%D0%BE%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184547_wolfenstein_the_new_order_rusifikator_teksta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184495_uroki_po_russkomu_yazuyku_5_klass_laduyzhenskaya_fgos.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184281_skachat_prilozhenie_sberbank_onlayn_na_kompyuter.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024793.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24793 3556 bytes
font_01_sfnt_off00025516.bin
74ea2a7784cc943a5ea8f84e661ac59e7d63d2e4410667fcd72b7fdb2c7cf0d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25516 14596 bytes
font_02_sfnt_off000282de.bin
734a0e3b4f833bf65ef9aa9a76728ab53f12e51cd926d3a6291e3b266682b037		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282DE 14640 bytes
font_03_sfnt_off0002ae11.bin
5ab3f9159f408707364ae4c3dc3a7da809c60962c3b4a4700a53ae8741a1294b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE11 6872 bytes
font_04_sfnt_off0002c1fa.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1FA 6084 bytes
font_05_sfnt_off0002d18f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D18F 3752 bytes

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