Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f12838768e03928…

MALICIOUS

PDF

185.1 KB Created: 2015-07-25 01:02:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 19bb3edc8a7fc2e156280b75dfc6749b SHA-1: 3105b877fd2d4acb43573737ae12527b72787526 SHA-256: 2f12838768e039281a1d3bec8739c3cee95b35fd3a939e9392f1f4c41151327e
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 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, 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%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B2%D0%BE%D0%BF%D1%80%D0%BE%D1%81%D1%8B+%D0%BA+%D1%8D%D0%BA%D0%B7%D0%B0%D0%BC%D0%B5%D0%BD%D1%83+%D0%BF%D0%BE+%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195245_irracionalnuyy_brending_primeruy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185298_skachat_albom_grigoriy_leps_gangster_1_2014_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195893_com_google_process_gapps_proizoshla_oshibka.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241f8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x241F8 3556 bytes
font_01_sfnt_off00024f7b.bin
55df5808b0b81f1fbc966d887284d17d3bfb1403200807571506e5cd62a1d913
pdf-font-stream PDF embedded font (sfnt) at offset 0x24F7B 14224 bytes
font_02_sfnt_off00027baf.bin
1a803d94510109e1c0ca4497b007617bc54bc3871f99963dd6d053fab28c84d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x27BAF 14468 bytes
font_03_sfnt_off0002a663.bin
136eb8451faa68d545824dc298c8be868387dd6e546e339368b5be20bb6514b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A663 6904 bytes
font_04_sfnt_off0002ba69.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA69 6084 bytes
font_05_sfnt_off0002c9fe.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9FE 3752 bytes