Malicious PDF — malware analysis report

Static analysis result for SHA-256 34d0e35334796421…

MALICIOUS

PDF

183.7 KB Created: 2015-07-27 19:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: afb1579e0da6960d94526f7e99d00ea2 SHA-1: 861db3ecc297cca75f2ea5e7827c99aac0482b49 SHA-256: 34d0e35334796421828eeb25fef61388683779fe32f7086886673c2c18eeae5b
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 strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of compromise, likely serving as a lure to a malicious site. 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=%D0%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+172+%D1%81+%D0%BC%D0%BE%D0%B4%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4213/4213290_igra_barbi_pokaz_mod_2_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202147_novuyy_raskroy_pro100_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200048_skachat_porno_incest_mp4.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ca0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CA0 3556 bytes
font_01_sfnt_off00024a23.bin
80f3c927779e022347b52103fee8ff65f9433faaddcdab217e527207895c86b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A23 14204 bytes
font_02_sfnt_off000276af.bin
77a72d8b8959471df1365734ad9d49b7d4430ee80d2f5f2cd5a5489b64d801c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x276AF 14512 bytes
font_03_sfnt_off0002a191.bin
c41326fe0e2410e71d545bdc10708f77b110620eaf17ee8d30258204d82283fa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A191 6740 bytes
font_04_sfnt_off0002b502.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B502 6084 bytes
font_05_sfnt_off0002c497.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C497 3752 bytes

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