Malicious PDF — malware analysis report

Static analysis result for SHA-256 04a2f7c69bbba8e7…

MALICIOUS

PDF

361.6 KB Created: 2015-08-26 20:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: aa60f8d4f05f576d1f4b8bb77d853e73 SHA-1: a3ab54cca5a788e4b7e77027f4654fe4ad8eecb2 SHA-256: 04a2f7c69bbba8e71a31c16cd86672c5be5441ad58822fead547c17d879eb5a3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector URL, botcraftman.ru, which is indicative of a phishing or malware distribution attempt. ClamAV detection as Pdf.Dropper.Agent-9531429-0 further supports its malicious nature. The embedded URL is likely intended to lure the user into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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-9531429-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9531429-0
  • 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%BC%D0%B0%D1%88%D0%B0+%D0%B8+%D0%BC%D0%B5%D0%B4%D0%B2%D0%B5%D0%B4%D1%8C+30+%D1%81%D0%B5%D1%80%D0%B8%D1%8F+%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://img1.liveinternet.ru/images/attach/c/7//4763/4763745_notuy__dlya__ansamblya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763668_patchi__dlya__pes_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763371_zayavlenie__v__fss_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005616e.bin
ad73df941c02b7e374621db30b2062c69fce98ebdb5343a025831e55276febbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5616E 8456 bytes
font_01_sfnt_off00057a56.bin
23323f40708e4e1bc198a7cd884247087b94791b0439f2d49ca1e536f5192eb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A56 14332 bytes

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