Malicious PDF — malware analysis report

Static analysis result for SHA-256 3335232c1529f8de…

MALICIOUS

PDF

185.6 KB Created: 2015-07-23 20:55:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f3eeb8d0db295fb6bbd1e4601cbff3aa SHA-1: eb67d22369bb36920b50ca1debfba17ab3c7bd64 SHA-256: 3335232c1529f8de0dbf5bac25e2a877123a229042b0f3d8272b8315e026fe79
90 Risk Score

Malware Insights

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

The PDF 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 malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted from this sample.

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=%D1%81%D0%BF+5131302009+%D1%81+%D0%B8%D0%B7%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F%D0%BC%D0%B8+2015+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184658_skachat_pesnyu_chernuyy_pistolet.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184458_videokarta_gigabyte_d33006_drayver.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184545_realnuye_kimuy_egye_po_matematike_2015_5_iyunya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240ca.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240CA 3556 bytes
font_01_sfnt_off00024e4d.bin
a6a1fb649a3fef03d697aa84fa557439434147f2ea7a35b5e3dcf48dbdf6307e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E4D 14696 bytes
font_02_sfnt_off00027bb3.bin
510521b9be7eac2f640958e43567768c9660d0350af3a5c729797a7a52d1f86e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BB3 14640 bytes
font_03_sfnt_off0002a6e8.bin
bb6f82c1fa4cbd2cddc8d04e24ed92dc068b428cf80183696681bce395d48cad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6E8 7308 bytes
font_04_sfnt_off0002bc67.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC67 6084 bytes
font_05_sfnt_off0002cbfc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBFC 3752 bytes

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