Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc0932ad3d772e1a…

MALICIOUS

PDF

186.6 KB Created: 2015-07-27 13:16:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e8e3328309abf37f427d073e18bdd330 SHA-1: d9c302bd2986ffdbc349876e88f2a26c19677f8b SHA-256: dc0932ad3d772e1a5a052f2fffbb715d538f5d03915434eae11be8338c872638
152 Risk Score

Malware Insights

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

The PDF document was flagged by multiple heuristics as malicious, including a critical finding for a link to known malicious redirector infrastructure. The primary malicious indicator is the embedded URL pointing to 'botcraftman.ru', which is classified as a malicious redirector. This suggests the PDF is intended to lure users to a compromised or malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494961-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494961-0
  • 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%B7%D1%80%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%BF%D1%80%D0%BE%D0%B8%D0%B3%D1%80%D1%8B%D0%B2%D0%B0%D1%82%D0%B5%D0%BB%D1%8F+windows+media&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187536_skachat_novuyy_albom_butuyrki_2015_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190003_invayt_koduy_dlya_world_of_tanks_na_iyul_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192940_shablonuy_babochek_dlya_vuyrezaniya_iz_bumagi_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a98a.bin
039da15b777d6392e523a89115b1ce0cfcd756abf4c44db14b9e026073dac256		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A98A 7832 bytes
font_00_sfnt_off000242e6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242E6 3556 bytes
font_01_sfnt_off00025069.bin
57282eb3aafb3a8a3cbbc0fda6e2ef122610df9fa1804da84caba23107778741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25069 14404 bytes
font_02_sfnt_off00027d6b.bin
bf6ef7fe717b31c83ece20b704c586dbfd6ab0356b520fa9e69b24a32d8d3682		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D6B 14960 bytes
font_04_sfnt_off0002c086.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C086 6084 bytes
font_05_sfnt_off0002d01b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D01B 3752 bytes

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