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
Behavioral task
behavioral2
Sample
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
Resource
win10
General
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Target
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe
Malware Config
Extracted
buer
https://162.244.81.87/
http://162.244.81.87:8080/
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
gennt.exedescription 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.
Processes:
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
Processes:
gennt.exepid process 1692 gennt.exe -
Deletes itself 1 IoCs
Processes:
gennt.exepid process 1692 gennt.exe -
Loads dropped DLL 1 IoCs
Processes:
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exepid 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.
Processes:
gennt.exedescription 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
Processes:
WerFault.exepid pid_target process target process 1820 1800 WerFault.exe secinit.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
Processes:
WerFault.exegennt.exepid process 1820 WerFault.exe 1820 WerFault.exe 1820 WerFault.exe 1820 WerFault.exe 1692 gennt.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
WerFault.exedescription pid process Token: SeDebugPrivilege 1820 WerFault.exe -
Suspicious use of WriteProcessMemory 23 IoCs
Processes:
e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exegennt.exesecinit.exedescription pid process target process PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe gennt.exe PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe gennt.exe PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe gennt.exe PID 1292 wrote to memory of 1692 1292 e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1.exe gennt.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1692 wrote to memory of 1800 1692 gennt.exe secinit.exe PID 1800 wrote to memory of 1820 1800 secinit.exe WerFault.exe PID 1800 wrote to memory of 1820 1800 secinit.exe WerFault.exe PID 1800 wrote to memory of 1820 1800 secinit.exe WerFault.exe PID 1800 wrote to memory of 1820 1800 secinit.exe WerFault.exe PID 1692 wrote to memory of 860 1692 gennt.exe cmd.exe PID 1692 wrote to memory of 860 1692 gennt.exe cmd.exe PID 1692 wrote to memory of 860 1692 gennt.exe cmd.exe PID 1692 wrote to memory of 860 1692 gennt.exe cmd.exe
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
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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
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C:\Windows\SysWOW64\secinit.exeC:\ProgramData\e2d014a3bdf03cc0a830\gennt.exe3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1800 -s 1604⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\e2d014a3bdf03cc0a830}"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exeMD5
db3c2530d727bac602e6c41cb3e60562
SHA10d62d5a5fba84c1e826591f27892466a1cd59257
SHA256e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1
SHA51203e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8
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C:\ProgramData\e2d014a3bdf03cc0a830\gennt.exeMD5
db3c2530d727bac602e6c41cb3e60562
SHA10d62d5a5fba84c1e826591f27892466a1cd59257
SHA256e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1
SHA51203e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8
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\ProgramData\e2d014a3bdf03cc0a830\gennt.exeMD5
db3c2530d727bac602e6c41cb3e60562
SHA10d62d5a5fba84c1e826591f27892466a1cd59257
SHA256e212e5bc428a0bca4615205f07c10d4e57dc881a2f32a9b8aeec040169435aa1
SHA51203e25d32a262c88ec2cf9303b7835da93b321a1d2a092531c96df8d95065944250f63c075792ca72b6d2a12d60c492782ba516712fbca0bf3b0239477b6b06e8
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memory/860-12-0x0000000000000000-mapping.dmp
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memory/1292-0-0x0000000000030000-0x000000000003C000-memory.dmpFilesize
48KB
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memory/1692-2-0x0000000000000000-mapping.dmp
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memory/1692-4-0x0000000000230000-0x000000000023C000-memory.dmpFilesize
48KB
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memory/1800-6-0x0000000000000000-mapping.dmp
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memory/1800-9-0x0000000000000000-mapping.dmp
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memory/1800-10-0x0000000000000000-mapping.dmp
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memory/1800-13-0x0000000000000000-mapping.dmp
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memory/1820-8-0x0000000002050000-0x0000000002061000-memory.dmpFilesize
68KB
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memory/1820-11-0x00000000025A0000-0x00000000025B1000-memory.dmpFilesize
68KB
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memory/1820-7-0x0000000000000000-mapping.dmp