Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea292203125bb9b…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 10:36:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b0434ef78eb7b4c853b45e4655a8c143 SHA-1: a5ffc59ad5464b78ef8017aa04e853da86b5b36d SHA-256: 8ea292203125bb9b4713c2306c3242e48076d5261d771195cf109ff585a8698f
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 assigned a high probability of 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 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%B2%D0%B8%D0%B4%D0%B5%D0%BE+%D1%82%D0%B5%D0%B0%D1%82%D1%80+%D0%B3%D0%BE%D0%BB%D1%8B%D1%85+%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%BE%D0%B2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383737_kak_uznat_mac_adres_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383846_dnevnik_trenirovok_raspechatat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384770_goluye_aduygeyki.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002424f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2424F 3556 bytes
font_01_sfnt_off00024fd2.bin
d9cbc1a998fd110b0fc89e99715209af0dcd8625e776f510b62ce2c020889e28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FD2 14588 bytes
font_02_sfnt_off00027cf6.bin
ac256187795b95e32ab95fe5f05982c21c052d3491be979748298a5b41e59962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CF6 14748 bytes
font_03_sfnt_off0002a801.bin
2a14ba722fedf152b7b010df11adeec124cd8ba730fcc08f56f592d228260563		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A801 6440 bytes
font_04_sfnt_off0002ba47.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA47 6084 bytes
font_05_sfnt_off0002c9dc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9DC 3752 bytes

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