Malicious PDF — malware analysis report

Static analysis result for SHA-256 972f66398e01bfff…

MALICIOUS

PDF

185.9 KB Created: 2015-07-24 04:30:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a0d1038e1432f82cdf529deeae9f1cb5 SHA-1: b565d874d52cbdc3e06daede88f80217bf3765c3 SHA-256: 972f66398e01bfff317c235b89aa37f6f9aef324f5cd2019030880b34a547d2a
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The presence of this malicious URL suggests the document is designed to lure users to a compromised site, likely for phishing or to download further malware. No scripts were extracted, and the document body was heavily truncated and unreadable.

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=%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B+landing+page+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188247_bazuy_dannuyh_bilayn_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184349_fb2_knigi_skachat_besplatno_bez_registracii.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185104_klyuch_k_igre_venus_hostage.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024168.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24168 3556 bytes
font_01_sfnt_off00024eeb.bin
fae84f828d49c5ff2119fc1e07f9d873227fdccdeb01d39dfcaef93973b68cfc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EEB 15236 bytes
font_02_sfnt_off00027de2.bin
45ff4bc94ac4f434dc4c4484a1693618c48976976556cb2cec88aa8a8fd5749e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DE2 14520 bytes
font_03_sfnt_off0002a8bf.bin
7979924931e1b36f260c30ed9534433a254538588ce8fdb71e2197c01f3fb3d9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8BF 7308 bytes
font_04_sfnt_off0002bdf5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDF5 6084 bytes
font_05_sfnt_off0002cd8a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD8A 3752 bytes

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