Analysis
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max time kernel
147s -
max time network
103s -
platform
windows7_x64 -
resource
win7v200430 -
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\\e2d014a3bdf03cc0a830\\gennt.exe\"" gennt.exe -
Buer Loader 2 IoCs
Detects Buer loader in memory or disk.
resource yara_rule behavioral1/memory/1292-0-0x0000000000030000-0x000000000003C000-memory.dmp buer behavioral1/memory/1692-4-0x0000000000230000-0x000000000023C000-memory.dmp buer -
Executes dropped EXE 1 IoCs
pid Process 1692 gennt.exe -
Deletes itself 1 IoCs
pid Process 1692 gennt.exe -
Loads dropped DLL 1 IoCs
pid Process 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.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) \??\H: gennt.exe File opened (read-only) \??\J: gennt.exe File opened (read-only) \??\N: gennt.exe File opened (read-only) \??\S: gennt.exe File opened (read-only) \??\U: gennt.exe File opened (read-only) \??\F: gennt.exe File opened (read-only) \??\G: gennt.exe File opened (read-only) \??\M: gennt.exe File opened (read-only) \??\A: gennt.exe File opened (read-only) \??\L: 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) \??\Q: gennt.exe File opened (read-only) \??\T: gennt.exe File opened (read-only) \??\B: gennt.exe File opened (read-only) \??\E: gennt.exe File opened (read-only) \??\V: gennt.exe File opened (read-only) \??\W: gennt.exe File opened (read-only) \??\X: gennt.exe File opened (read-only) \??\Y: gennt.exe File opened (read-only) \??\Z: gennt.exe File opened (read-only) \??\K: gennt.exe File opened (read-only) \??\R: 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 1820 1800 WerFault.exe 29 -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1820 WerFault.exe 1820 WerFault.exe 1820 WerFault.exe 1820 WerFault.exe 1692 gennt.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1820 WerFault.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 27 PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 27 PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 27 PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe 27 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1692 wrote to memory of 1800 1692 gennt.exe 29 PID 1800 wrote to memory of 1820 1800 secinit.exe 30 PID 1800 wrote to memory of 1820 1800 secinit.exe 30 PID 1800 wrote to memory of 1820 1800 secinit.exe 30 PID 1800 wrote to memory of 1820 1800 secinit.exe 30 PID 1692 wrote to memory of 860 1692 gennt.exe 31 PID 1692 wrote to memory of 860 1692 gennt.exe 31 PID 1692 wrote to memory of 860 1692 gennt.exe 31 PID 1692 wrote to memory of 860 1692 gennt.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe"C:\Users\Admin\AppData\Local\Temp\e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1292 -
C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exeC:\ProgramData\e2d014a3bdf03cc0a830\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:1692 -
C:\Windows\SysWOW64\secinit.exeC:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe3⤵
- Suspicious use of WriteProcessMemory
PID:1800 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 1604⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1820
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\e2d014a3bdf03cc0a830}"3⤵PID:860
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