Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a93d92367e3be5…

MALICIOUS

PDF

187.6 KB Created: 2015-07-25 05:32:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1756821fc3cdf0277a870c1b1f075b38 SHA-1: 85c644678f98dcc8919864c9ef8ba3cd9face916 SHA-256: e5a93d92367e3be5e7d9e6194a8d3649ada5a864803678483ce49b854811ddb8
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, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%B4%D1%8D%D0%B2%D0%B8%D0%B4+%D0%B0%D0%BB%D0%BB%D0%B5%D0%BD+%D0%BA%D0%B0%D0%BA+%D0%BF%D1%80%D0%B8%D0%B2%D0%B5%D1%81%D1%82%D0%B8+%D0%B4%D0%B5%D0%BB%D0%B0+%D0%B2+%D0%BF%D0%BE%D1%80%D1%8F%D0%B4%D0%BE%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://img0.liveinternet.ru/images/attach/c/5//4196/4196702_muzuyka_iz_geymerov_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184590_sirs_vash_maluysh_ot_rozhdeniya_do_dvuh_let_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192487_skachat_pley_market_na_android_besplatno_bez_registracii.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a71.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A71 3556 bytes
font_01_sfnt_off000257f4.bin
283a097ff2e06f41521f0a129cdf74ca9bea7317393be3a3a37cd7a9e9beaf1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257F4 14668 bytes
font_02_sfnt_off000285e3.bin
2faf238a7982558102f008fa2e03cbd823800727545a7f10afda32250c8cbf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285E3 14468 bytes
font_03_sfnt_off0002b096.bin
b7b0e356ad77df14056f67ed165bd7bcbcb964328c5d38701ddeeb9cc3d2fda1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B096 6924 bytes
font_04_sfnt_off0002c48f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C48F 6084 bytes
font_05_sfnt_off0002d424.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D424 3752 bytes

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