Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3f38ce523c5ac52…

MALICIOUS

PDF

187.0 KB Created: 2015-07-24 23:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1c06f95cda3d0bb4662bbc33316f0331 SHA-1: 51949c873dfd46721917aaa5af14ab4202c37cc6 SHA-256: f3f38ce523c5ac52a20554da3a1b552fce906c77f8ec7831c0237eed3708ec42
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted, but the primary attack vector appears to be luring the user to click the malicious link.

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=igo+primo+2015+%D0%B4%D0%BB%D1%8F+windows+ce+60+800x480+%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/5//4195/4195142_yaponskaya_sistema_razvitiya_intellekta_i_pamyati_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195885_globo_4100c_proshivka.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191998_skachat_spin_tires_2015_polnuyu_versiyu_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a921.bin
339e28c5e3852702d3c9c5768f8716fd60f84481354d9109e2e039e504a1af53		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A921 8420 bytes
font_00_sfnt_off00024183.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24183 3556 bytes
font_01_sfnt_off00024f06.bin
6632548466e6ae463c3d8a216589f658be1710a02f868910f3b43cccfc783b3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F06 14616 bytes
font_02_sfnt_off00027cfa.bin
46ca4406759e6bce7a80b328f43e40c57f4376b229a40121157663ef63a630fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CFA 14948 bytes
font_04_sfnt_off0002c259.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C259 6084 bytes
font_05_sfnt_off0002d1ee.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1EE 3752 bytes

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