Malicious PDF — malware analysis report

Static analysis result for SHA-256 896ec9871857e577…

MALICIOUS

PDF

185.2 KB Created: 2015-08-08 10:43:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 216edfd71fd59840a5e74516bcee8696 SHA-1: 76c368392bfab7cc9763172cd9afc4535592642b SHA-256: 896ec9871857e577416d4eeaf2e6dbe3bc7c1cf912a250bbaa6d2a0a245b89d6
92 Risk Score

Malware Insights

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

The PDF file contains an embedded link that redirects to a known malicious domain, botcraftman.ru. This indicates a phishing or malware distribution attempt. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

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=bleach+versus+crusade+pc+%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://img1.liveinternet.ru/images/attach/c/6//4385/4385291_sfera_deyatelnosti_primeruy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385562_basseyn_pod_klyuch_cena.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383855_skachat_programmu_dlya_skachuvannya_muziki_z_vk.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a626.bin
b735f4eb05a64bb6c3366327a3dad3b61b6bb29c76af3fa79a4ea97e9170e45b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A626 7184 bytes
font_00_sfnt_off00023fbd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FBD 3556 bytes
font_01_sfnt_off00024d40.bin
518da623c794c1b222ced97463363fc31ec7382c747f5f3880393fdefa757064		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D40 14840 bytes
font_02_sfnt_off00027b28.bin
4d9ef93043b479301c011c146b68b865c7f4514b400ae1e0d23688554896aa9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B28 14616 bytes
font_04_sfnt_off0002bb10.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB10 6084 bytes
font_05_sfnt_off0002caa5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAA5 3752 bytes

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