Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5fdcfce2264a372…

MALICIOUS

PDF

185.7 KB Created: 2015-08-06 18:37:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b1e56f198a058dc16390a8380ef7fa4d SHA-1: cdaccb5b1de2865cbc5fa0fc2dae79b3f4a41f4d SHA-256: a5fdcfce2264a3724b37588e5438f35b85a47769801f9b3ece73e3948f03ce10
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document is designed to lure users to a harmful website. No scripts were extracted, and the document body was not parsable.

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=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B8%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D0%B8%D0%B7+%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4314/4314342_taynuy_sledstviya_3_sezon_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4315/4315875_skachat_stih_pro_zazhigalku.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4312/4312312_yesse_po_angliyskomu_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024482.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24482 3556 bytes
font_01_sfnt_off00025205.bin
c4f781dcfb89656ab092c524c26580921e9bb2cff9b486c9e59f9f03bfb8bcc8
pdf-font-stream PDF embedded font (sfnt) at offset 0x25205 14256 bytes
font_02_sfnt_off00027ecb.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x27ECB 14468 bytes
font_03_sfnt_off0002a97d.bin
ab1a46f6715981c8ad4fa1645d28bd7766879617b62160eaa9c04083be8160fa
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A97D 6748 bytes
font_04_sfnt_off0002bcef.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCEF 6084 bytes
font_05_sfnt_off0002cc84.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC84 3752 bytes