Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef25a6fe6881926f…

MALICIOUS

PDF

185.3 KB Created: 2015-07-23 20:07:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 15e2b9a4ed6cbb19c236a4b5558f942a SHA-1: 03b464623c2a75a1d95f50f53cf6e263614d5fcc SHA-256: ef25a6fe6881926f167091a6ec11a6659eeb9daec4a0160335137a7375820c91
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, botcraftman.ru, which is likely used to deliver malware. The link text suggests a lure for downloading a game, a common social engineering tactic. No scripts were extracted, and the document body was not parsable.

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=gta+4+lost+and+damned+%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://img0.liveinternet.ru/images/attach/c/5//4184/4184370_skachat_programmu_dlya_kodov_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184380_igra_moya_strana_2020_dlya_kompyutera_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183203_kursovoy_proekt_torgovuyy_centr.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a6a7.bin
69f0302fdbf0ac2b33bd8d3d50f1c9ce56ec6201c2515ba47c97ad9676dd6141		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A6A7 7156 bytes
font_00_sfnt_off00023f7b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F7B 3556 bytes
font_01_sfnt_off00024cfe.bin
6a8fb41e85226a2b0e208a190dd1478094608872c5b7290c43fac8fe539b54bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CFE 14728 bytes
font_02_sfnt_off00027aa1.bin
1c8ae2ff4eb85a2c51c5ac4822aab730229b8a875074fcd30182e4000d0f0f4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AA1 14892 bytes
font_04_sfnt_off0002bb8a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB8A 6084 bytes
font_05_sfnt_off0002cb1f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB1F 3752 bytes

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