SUSPICIOUS — 4810622_reshebnik__po__matematike_.pdf
SUSPICIOUS — 4810622_reshebnik__po__matematike_.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (66/100). 2 of 53 detection engines flagged it, exhibiting 3 ATT&CK techniques.
Identification
- SHA-256:
22602f03bb65073682d0f69dcb2831fd232874bb19b237378a5d4f370de2d285 - SHA-1:
d01408307fbfc36bf77fc4a8f4b6f3992d14e9f4 - MD5:
2217f38308889dde589a1d9c083b60a0 - ssdeep:
6144:x3JRJyhKMV9lQHbZNJXcLEEcXIH89FFmJ/m8Zx4fQvoV0bcsjBqOk3hS:x3JRgYS9mRXPIH89F0u8Q9V8bjShS - TLSH:
T1424902F5EA029E69C49D7F617F7A903C7E06124240F21B32701358E676B877B2719272 - Submitted as: 4810622_reshebnik__po__matematike_.pdf
- File type: pdf · Size: 394005 bytes
- Verdict: suspicious (66/100)
Detections (2 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.13
MITRE ATT&CK
Why this verdict
The suspicious score of 66/100 is the fusion of 7 weighted signals:
- Embedded link rated suspicious by URL analysis: http://img0.liveinternet.ru/images/attach/c/7//4810/4810525_skachat__igru__uchebnuyy_.pdf - network signal, weight 0.40, confidence 0.60
- Embedded network infrastructure: http://botcraftman.ru/?lip&keyword=%D1%80%D0%B5%D1%88%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+4+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%B5%D1%82%D0%B5%D1%80%D1%81%D0%BE%D0%BD+%D1%81%D0%B0%D0%BC%D0%BE%D1%81%D1%82%D0%BE%D1%8F%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B&charset=utf-8, http://img0.liveinternet.ru/images/attach/c/7//4810/4810525_skachat__igru__uchebnuyy_.pdf, http://img1.liveinternet.ru/images/attach/c/7//4809/4809377_skachat__igru__maynkraft_.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Contacted 9 external host(s) at runtime - network signal, weight 0.12, confidence 0.55
- Extracted generic config (4 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9629 behavior events · 1 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- searchapp.bundleassets.example
- inference.location.live.net
- to-do.office.com
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- desktop-hsgcbep
- 250.255.255.239.in-addr.arpa
- ntp.ubuntu.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- 23.40.52.85
- 23.11.37.157
- 20.190.142.164
- 23.33.238.111
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
0f823b398ea025ef83fdae7baf240702886ed242e4cc5feb910b3ebd02561f46 - C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\dfd54a045f631f4acfe6cc598cdf3fad.png -
d9226d126e61efa63c74f3eaefb1243b021aed262ea5362aee6bbdfaf80e1172 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- http://botcraftman.ru/?lip&keyword=%D1%80%D0%B5%D1%88%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+4+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D0%BF%D0%B5%D1%82%D0%B5%D1%80%D1%81%D0%BE%D0%BD+%D1%81%D0%B0%D0%BC%D0%BE%D1%81%D1%82%D0%BE%D1%8F%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D1%8B&charset=utf-8
- http://img0.liveinternet.ru/images/attach/c/7//4810/4810525_skachat__igru__uchebnuyy_.pdf
- http://img1.liveinternet.ru/images/attach/c/7//4809/4809377_skachat__igru__maynkraft_.pdf
- http://img0.liveinternet.ru/images/attach/c/7//4810/4810155_skachat__blyek__market_.pdf
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
Embedded domains
- botcraftman.ru
- img0.liveinternet.ru
- img1.liveinternet.ru
Embedded IP addresses
- 135.232.92.34
- 74.179.77.204
- 40.79.150.121
- 4.150.223.114
- 52.123.252.194
- 4.230.171.124
- 72.153.5.97
- 162.159.36.2
- 203.26.79.13
Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report