Analysis
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max time kernel
86s -
max time network
142s -
platform
windows10_x64 -
resource
win10 -
submitted
08-07-2020 16:18
Static task
static1
Behavioral task
behavioral1
Sample
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
Resource
win7v200430
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
Resource
win10
windows10_x64
0 signatures
0 seconds
General
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Target
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
Score
10/10
Malware Config
Extracted
Family
buer
C2
https://162.244.81.87/
http://162.244.81.87:8080/
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\ProgramData\\19aedf2a284d49ff442c\\gennt.exe\"" gennt.exe -
Buer Loader 1 IoCs
Detects Buer loader in memory or disk.
resource yara_rule behavioral2/memory/2460-0-0x00000000001D0000-0x00000000001DC000-memory.dmp buer -
Executes dropped EXE 1 IoCs
pid Process 3820 gennt.exe -
Deletes itself 1 IoCs
pid Process 3820 gennt.exe -
Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\K: gennt.exe File opened (read-only) \??\V: gennt.exe File opened (read-only) \??\X: gennt.exe File opened (read-only) \??\Z: gennt.exe File opened (read-only) \??\E: gennt.exe File opened (read-only) \??\H: gennt.exe File opened (read-only) \??\J: gennt.exe File opened (read-only) \??\L: gennt.exe File opened (read-only) \??\M: gennt.exe File opened (read-only) \??\N: gennt.exe File opened (read-only) \??\Q: gennt.exe File opened (read-only) \??\A: gennt.exe File opened (read-only) \??\B: gennt.exe File opened (read-only) \??\I: gennt.exe File opened (read-only) \??\O: gennt.exe File opened (read-only) \??\P: gennt.exe File opened (read-only) \??\T: gennt.exe File opened (read-only) \??\W: gennt.exe File opened (read-only) \??\F: gennt.exe File opened (read-only) \??\G: gennt.exe File opened (read-only) \??\R: gennt.exe File opened (read-only) \??\S: gennt.exe File opened (read-only) \??\U: gennt.exe File opened (read-only) \??\Y: gennt.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
pid pid_target Process procid_target 804 3768 WerFault.exe 70 -
Suspicious behavior: EnumeratesProcesses 15 IoCs
pid Process 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 804 WerFault.exe 3820 gennt.exe 3820 gennt.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeRestorePrivilege 804 WerFault.exe Token: SeBackupPrivilege 804 WerFault.exe Token: SeDebugPrivilege 804 WerFault.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 2460 wrote to memory of 3820 2460 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 68 PID 2460 wrote to memory of 3820 2460 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 68 PID 2460 wrote to memory of 3820 2460 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 68 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 3768 3820 gennt.exe 70 PID 3820 wrote to memory of 1188 3820 gennt.exe 79 PID 3820 wrote to memory of 1188 3820 gennt.exe 79 PID 3820 wrote to memory of 1188 3820 gennt.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe"C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2460 -
C:\ProgramData\19aedf2a284d49ff442c\gennt.exeC:\ProgramData\19aedf2a284d49ff442c\gennt.exe "C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe" ensgJJ2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Deletes itself
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3820 -
C:\Windows\SysWOW64\secinit.exeC:\ProgramData\19aedf2a284d49ff442c\gennt.exe3⤵PID:3768
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3768 -s 3604⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:804
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\19aedf2a284d49ff442c}"3⤵PID:1188
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