Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed49c25bb143c56…

MALICIOUS

PDF

184.2 KB Created: 2015-07-25 22:40:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b260888020f8b7c6778241f743d06aa4 SHA-1: e7724146297beb08649bca967cf88883ce15beef SHA-256: 1ed49c25bb143c56de20848414c8c10ca99680c49c68113f2b9b435cd7fdd3af
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%A1%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+%D0%BD%D0%B0%D1%88+%D1%81%D0%B0%D0%B4+%D0%BA%D1%80%D0%B8%D1%81%D1%82%D0%B0%D0%BB%D0%BB+10&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189936_skachat_besplatno_skayp_na_russkom_yazuyke_poslednyuyu_versiyu.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191932_skachat_albom_shatunova_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184618_otvetuy_na_biletuy_po_promuyshlennoy_bezopasnosti_rostehnadzor.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023efb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EFB 3556 bytes
font_01_sfnt_off00024c7e.bin
029a89722a526320b855e0b0703d4106b9e648b017a0745291bc94f160888700		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C7E 14292 bytes
font_02_sfnt_off00027952.bin
85043132ab0883565674241d75084a2be219626fc061092a2ff1d253e3ed7849		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27952 14520 bytes
font_03_sfnt_off0002a425.bin
1a0f41abc611b9277eb841d3eeaac93a1e85eabc89bc4b0e7b65b891039f238e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A425 6568 bytes
font_04_sfnt_off0002b6f4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6F4 6084 bytes
font_05_sfnt_off0002c689.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C689 3752 bytes

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