Malicious PDF — malware analysis report

Static analysis result for SHA-256 388e9806fb8626d6…

MALICIOUS

PDF

187.6 KB Created: 2015-07-24 12:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ced5e76e8b88d645f6aa85dd7756f9d5 SHA-1: d563f3a2966d8ace5a62763fe6ac84e91f2fdcea SHA-256: 388e9806fb8626d6ead2eee3dffe7044832234986d9fab3db0d7ea951e234462
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/...' is identified as a malicious redirector, indicating the document's purpose is to lure users to a harmful site. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact 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=windows+7+%D0%B4%D0%BE%D0%BC%D0%B0%D1%88%D0%BD%D1%8F%D1%8F+%D0%B1%D0%B0%D0%B7%D0%BE%D0%B2%D0%B0%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://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192280_korchevskiy_yuriy_feldeger_3_suyn_boyarskiy_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184385_dzheyms_rollins_tropa_mertvuyh_skachat_besplatno_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187223_tatu_na_rebre_ladoni_nadpisi.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ae60.bin
f1324fccb3bf7fce67157b3ff3fbd02fa7796d4e7064324f8921275a17b1f248
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AE60 7556 bytes
font_00_sfnt_off00024656.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24656 3556 bytes
font_01_sfnt_off000253d9.bin
6b744cf7483705dd37d8415f4036bfd705bbb4bf64dd9bc6a5f5e981d8c6c80f
pdf-font-stream PDF embedded font (sfnt) at offset 0x253D9 15020 bytes
font_02_sfnt_off0002831d.bin
239d105122a7ac2e1b6db32581776dd03f0ffb43e6b65494906b1890ac65d95d
pdf-font-stream PDF embedded font (sfnt) at offset 0x2831D 14640 bytes
font_04_sfnt_off0002c48f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C48F 6084 bytes
font_05_sfnt_off0002d424.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D424 3752 bytes