Malicious PDF — malware analysis report

Static analysis result for SHA-256 47ea8422137573ba…

MALICIOUS

PDF

187.2 KB Created: 2015-08-08 12:32:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 082d05000d408ba411998cd6ec9b0d29 SHA-1: 4923970195ba84f2b3119be6da79e39c120f7c5b SHA-256: 47ea8422137573ba063ecdc0311b291fd014b6476fc728f004bb9df105723000
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 containing a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirector infrastructure. No scripts were extracted, but the presence of the malicious link suggests the document's purpose is to lure the user to a harmful site.

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%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D1%81%D0%BA%D0%B8%D0%B5+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B+%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+%D0%B4%D0%BB%D1%8F+%D1%83%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4390/4390615_yelektronnoe_dnevnik_respubliki_tatarstan.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386994_crack_solo_na_klaviature_90.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389137_barbara_minto_zolotuye_pravila_garvarda_i_mckinsey_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248ca.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248CA 3556 bytes
font_01_sfnt_off0002564d.bin
ac8ab41ca103f4c33a52303940da871ad922bed2ccaf505ee8cba6e57c710fb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2564D 14604 bytes
font_02_sfnt_off00028390.bin
b37701965d1bf3907c1453c42f5597b931bf661880ab3ca62e85abca0d314471		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28390 14532 bytes
font_03_sfnt_off0002ae83.bin
23c50699047cbea6a6f3bec45c04ea5b39afee47bb9b1e42cc163e22ba668af0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE83 7092 bytes
font_04_sfnt_off0002c31e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C31E 6084 bytes
font_05_sfnt_off0002d2b3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2B3 3752 bytes

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