Malicious PDF — malware analysis report

Static analysis result for SHA-256 28fc8aa0fe1b8f81…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 09:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 01d1558877b389c5b36b4c08ace0d685 SHA-1: 3d293b4ee623865c874d039a297ff6d545c91c34 SHA-256: 28fc8aa0fe1b8f812fa68fa07f8d26ec326ac52932c330af6800109239aa4a66
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as malicious redirector infrastructure. No scripts were extracted from this sample, so the attack pattern is inferred from 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=%D0%B0%D0%BB%D0%B5%D0%BA%D1%81+%D0%BE%D1%80%D0%BB%D0%BE%D0%B2+%D0%BF%D0%B5%D1%80%D0%B5%D0%B2%D0%BE%D0%B7%D1%87%D0%B8%D0%BA+%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://img1.liveinternet.ru/images/attach/c/5//4183/4183194_kursovoy_proekt_po_vodosnabzheniyu.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188667_skachat_igru_spider_man_edge_of_time_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185749_garik_krichevskiy_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024554.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24554 3556 bytes
font_01_sfnt_off000252d7.bin
b3ac7f69f2551096963f575089c98abb197e4432634753134679f4729b887430		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252D7 14592 bytes
font_02_sfnt_off00028076.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28076 14468 bytes
font_03_sfnt_off0002ab28.bin
d625e35fb74fd460b84b6aef949c898f725e61199b29c979b163f5845ab6901f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB28 6720 bytes
font_04_sfnt_off0002be6d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE6D 6084 bytes
font_05_sfnt_off0002ce02.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE02 3752 bytes

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