Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0efc47f0c88e365…

MALICIOUS

PDF

185.8 KB Created: 2015-07-27 18:35:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 285b1f930aafb9d6ad4832ce5ba552fe SHA-1: b13031a4d0e4032c126e904ba491a72dc91eb821 SHA-256: a0efc47f0c88e36585737d61b7c9c58b976fdefe9c504b63e31a4fa21b4c499d
92 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 associated with malicious redirectors. No scripts were extracted, but the presence of a malicious link suggests a phishing or malware delivery attempt.

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%BF%D1%80%D0%B0%D0%B2%D0%B8%D0%BB%D0%B0+%D0%BD%D0%B0%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D1%8F+%D1%8D%D1%81%D1%81%D0%B5+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4213/4213081_katalog_detaley_motorollera_muravey.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198466_protokol_obschego_sobraniya_trudovogo_kollektiva_dou_obrazec.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4228/4228549_smeshnuye_scenki_pro_derevnyu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243e2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243E2 3556 bytes
font_01_sfnt_off00025165.bin
f388b5eec267c4ac8cdb2a16a84c30a17bd24e301001b6419d1eee16ee5dcabb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25165 14464 bytes
font_02_sfnt_off00027ee8.bin
1a803d94510109e1c0ca4497b007617bc54bc3871f99963dd6d053fab28c84d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EE8 14468 bytes
font_03_sfnt_off0002a99c.bin
d43cde743e78e5c8d882a00624ff9c83a6974b540bc72a5244f1786c3b9118e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A99C 6824 bytes
font_04_sfnt_off0002bd53.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD53 6084 bytes
font_05_sfnt_off0002cce8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCE8 3752 bytes

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