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Analysis
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max time kernel
167s -
max time network
192s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2022, 19:01
Static task
static1
Behavioral task
behavioral1
Sample
YBnruijYBbnbMK.bat
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
YBnruijYBbnbMK.bat
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
required documents.lnk
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
required documents.lnk
Resource
win10v2004-20220901-en
Behavioral task
behavioral5
Sample
vEzFDEkEeKmEBW.dll
Resource
win7-20220812-en
General
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Target
YBnruijYBbnbMK.bat
-
Size
1KB
-
MD5
76bdd5d90645d4d05142e52c32ba5691
-
SHA1
a7a8427a3333e9aa4bc4f1afe2003c30d489384c
-
SHA256
872a7741ca7f2cac261346385be38b91a582ec26c4160472b7b8769da884a55d
-
SHA512
083d71cae8b0eec7c31cfbca1f2b71ce20d7c3632ff345d154fa071348d4bef3e660abd3bd854470100e38ee4de967ba3814d1ee906e7299db20626c15fa8c1b
Malware Config
Extracted
bumblebee
2710vm
23.106.160.141:443
198.98.56.242:443
104.244.77.61:443
Signatures
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Blocklisted process makes network request 5 IoCs
flow pid Process 29 5096 rundll32.exe 33 5096 rundll32.exe 39 5096 rundll32.exe 46 5096 rundll32.exe 47 5096 rundll32.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 5096 rundll32.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4648 wrote to memory of 5096 4648 cmd.exe 79 PID 4648 wrote to memory of 5096 4648 cmd.exe 79
Processes
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\YBnruijYBbnbMK.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:4648 -
C:\Windows\system32\rundll32.exerundll32 vEzFDEkEeKmEBW.dll,AppLoad2⤵
- Blocklisted process makes network request
- Suspicious use of NtCreateThreadExHideFromDebugger
PID:5096
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