Malicious PDF — malware analysis report

Static analysis result for SHA-256 da5a69543791592a…

MALICIOUS

PDF

187.7 KB Created: 2015-07-24 00:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f964e0187318988cf32b90cc6264b2ba SHA-1: f357f87b6f3e84bfc339de4aaff933a4abb48607 SHA-256: da5a69543791592ae45b46f798ed08c2144f951c7211c4d6cfb87039ae3dd2bb
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, as malicious. A critical heuristic identified a link to known malicious redirector infrastructure at http://botcraftman.ru/. This suggests the document is designed to lure the user into clicking the link, which then likely leads to the download and execution of a second-stage payload. No scripts were extracted, and the document body was truncated.

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-7494957-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494957-0
  • 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%9E%D1%82%D1%87%D0%B5%D1%82+%D0%BF%D0%BE+%D0%BF%D1%80%D0%BE%D0%B8%D0%B7%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B9+%D0%BF%D1%80%D0%B0%D0%BA%D1%82%D0%B8%D0%BA%D0%B5+%D0%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185086_prochitat_skruytuye_kommentarii_v_kontakte.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184319_kryak_alavar_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184684_tia_portal_v12_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024acd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24ACD 3556 bytes
font_01_sfnt_off00025850.bin
a0c4f7776687a12d2dc6c790aa3dcece06773832d9dd5ee342e9bc436f4e9ee8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25850 14596 bytes
font_02_sfnt_off00028591.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28591 14532 bytes
font_03_sfnt_off0002b081.bin
6bf5c3654349c15d215b3a35f90311ce8fed01d05bac55d2d1fc530619df91f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B081 7020 bytes
font_04_sfnt_off0002c4dd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4DD 6084 bytes
font_05_sfnt_off0002d472.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D472 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.