Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a195901ced2028d…

MALICIOUS

PDF

185.2 KB Created: 2015-07-23 21:04:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ffa74cd5f7d39b6919ed0c7ed512517b SHA-1: db59012a23657c414769e6c1912c8f7b95b94a00 SHA-256: 4a195901ced2028d2e86e7c731d79b931ccb4eb453a9cbdd9fd9048342e05858
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document's primary purpose is to lure the user to a malicious site. ClamAV also detected the file as Pdf.Dropper.Agent-7493976-0, further confirming its malicious nature as a dropper. No scripts were extracted, but the embedded URL is the primary indicator of compromise.

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-7493976-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493976-0
  • 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+heroes+hack+%D0%B1%D0%B8%D1%82%D0%B2%D0%B0+%D0%B7%D0%B0%D0%BC%D0%BA%D0%BE%D0%B2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184720_90011.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184375_pasportnuyy_stol_yurga_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184385_dzheyms_rollins_tropa_mertvuyh_skachat_besplatno_fb2.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a639.bin
132725255e4b2655b5c77a69af1358c490ad683b8cc401901998c4b9cc98d453		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A639 7168 bytes
font_00_sfnt_off00023f73.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F73 3556 bytes
font_01_sfnt_off00024cf6.bin
0239024d3647587780e0f7cdf64909035baff9842575395dcdae04ab66d8436c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CF6 15080 bytes
font_02_sfnt_off00027b6a.bin
8e79e1f98fb55b0da98b0e876ef4d23eab5419251b6debdbebbcb8aaa201ca0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B6A 14564 bytes
font_04_sfnt_off0002bb12.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB12 6084 bytes
font_05_sfnt_off0002caa7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAA7 3752 bytes

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