Malicious PDF — malware analysis report

Static analysis result for SHA-256 fce098a431abf15c…

MALICIOUS

PDF

187.9 KB Created: 2015-07-25 12:08:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: de9c518cf0e670cfa3ee6f854a6922c6 SHA-1: d56b91b63e754a309e0e2297ac7565784ee499c6 SHA-256: fce098a431abf15cb304ae4e23f0490a9afbd2cfe39e242ddd0a9e0046fc52fb
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further support this assessment. The primary attack pattern involves luring the user to this malicious URL, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7629293-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7629293-0
  • 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%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA+%D0%BD%D0%B5%D0%B2%D1%8B%D0%B5%D0%B7%D0%B4%D0%BD%D1%8B%D1%85+%D0%B3%D1%80%D0%B0%D0%B6%D0%B4%D0%B0%D0%BD+%D1%80%D1%84+%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://img0.liveinternet.ru/images/attach/c/5//4192/4192927_mount_and_blade_star_wars_conquest_0904_skachat_torrent_rus.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185126_final_fantasy_9_pc_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196638_gdz_po_angliyskomu_yazuyku_8_klass_afanaseva_miheeva_reader.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002486b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2486B 3556 bytes
font_01_sfnt_off000255ee.bin
b558229285ee837e3f7b995b9edfa608a5988b01c2aad1395ae729af7e5a6567		 pdf-font-stream PDF embedded font (sfnt) at offset 0x255EE 15508 bytes
font_02_sfnt_off000285af.bin
cf606cdc8ecd6b0b3333ed60481ce75c7a7f3e7d35a853591c3ed71fbd7aec07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285AF 14532 bytes
font_03_sfnt_off0002b09c.bin
fa579dabbf63df361cf5b7095d9bdfcb00be3f81005fa080f9a4faabce1ba033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B09C 7240 bytes
font_04_sfnt_off0002c5bc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5BC 6084 bytes
font_05_sfnt_off0002d551.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D551 3752 bytes

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