Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c819226bcc087b6…

MALICIOUS

PDF

190.8 KB Created: 2015-08-08 11:38:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9a16f1119ddcd1a42af2890736e64c73 SHA-1: c4df274e32ab5c87bf840bf21666f9b2e21f1af1 SHA-256: 1c819226bcc087b6273a8bbc91ab69cc46e7510735619ad40600b2c7a4286516
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. This indicates the document is likely a lure designed to redirect users to a malicious website for phishing or malware distribution. 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%9E%D0%91%D0%A0%D0%90%D0%97%D0%95%D0%A6+%D0%97%D0%90%D0%AF%D0%92%D0%9B%D0%95%D0%9D%D0%98%D0%AF+%D0%9F%D0%95%D0%9D%D0%A1%D0%98%D0%9E%D0%9D%D0%95%D0%A0%D0%90+%D0%BC%D0%B2%D0%B4+%D0%9E%D0%91+%D0%9D%D0%95%D0%98%D0%A1%D0%9F%D0%9E%D0%9B%D0%AC%D0%97%D0%9E%D0%92%D0%90%D0%9D%D0%9D%D0%9E%D0%99+%D0%94%D0%9E%D0%A0%D0%9E%D0%93%D0%95&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385218_grekov_russkiy_gdz_1983_god.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4310/4310808_kniga_ucheta_materialnuyh_cennostey_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385804_skachat_igruy_pro_dinozavrov_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002564e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2564E 3556 bytes
font_01_sfnt_off000263d1.bin
46e304ae6a4ead7aa16a75b5a76db82ea6634bd552ea890c7ae06c6d102c3bb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x263D1 14856 bytes
font_02_sfnt_off0002916b.bin
085f9a47cd649d6dfdd5f63bed06258a8657201441e3c02350473a6b344eede1
pdf-font-stream PDF embedded font (sfnt) at offset 0x2916B 15216 bytes
font_03_sfnt_off0002bd78.bin
9e64cc26238994f247be372d8a281501d30a3096b90a859c41e9d17fadc1a57e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD78 6968 bytes
font_04_sfnt_off0002d185.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D185 6084 bytes
font_05_sfnt_off0002e11a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2E11A 3752 bytes