Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1a2a864f069d46…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 09:52:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fb10b7f032ef913676ea19f69ce7451c SHA-1: b9ded4034f5a1dcc0e788ce5d3782e948855ee0f SHA-256: 5a1a2a864f069d461529e203abded09a49a22589523cde13a24a30564bb2911d
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%BE%D1%82%D0%BE%D1%88%D0%BE%D0%BF+%D0%BD%D0%B0+%D1%81%D0%B8%D0%BC%D0%B1%D0%B8%D0%B0%D0%BD&charset=utf-8 is the primary indicator of malicious intent. No scripts were extracted, limiting the analysis of the exact payload.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%BE%D1%82%D0%BE%D1%88%D0%BE%D0%BF+%D0%BD%D0%B0+%D1%81%D0%B8%D0%BC%D0%B1%D0%B8%D0%B0%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384144_skachat_chit_minecraftaoe_100.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383746_kak_vuyschitat_pol_rebenka_po_tablice.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384081_google_play_market_skachat_na_telefon.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024100.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24100 3556 bytes
font_01_sfnt_off00024e83.bin
602b3e43cf7ed5d90b2dcf932db8719db1ecc35183840645c2d0975181decbf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E83 15036 bytes
font_02_sfnt_off00027cee.bin
8c5e5bc4674cee60ec6c1619e60533ff44be00efca6b5f228c587d2f19a61a12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CEE 14520 bytes
font_03_sfnt_off0002a7bd.bin
14c8adfd2374a7f497f710f9a78cae8b0e96dbf6112d131de1d0309e3560882a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7BD 6536 bytes
font_04_sfnt_off0002ba58.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA58 6084 bytes
font_05_sfnt_off0002c9ed.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9ED 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.