3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67

General

Target

3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
Size

554KB
MD5

d8e04e51292b7a8f4a04495f8c3c54f0
SHA1

252a4f7798600abace1c718ddee159a0afff7d37
SHA256

3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67
SHA512

55cd6bd3912fea8ec18b597fd612f455276ae8ea8c756b2ae61c13f3e722203fc43b85fdbc572a1e524d8b1207bf785516a5f57cfb15306b6709db414b92fcda

Score

9^/10

evasion persistence ransomware trojan

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\egidwpob = "\"C:\\Windows\\ekygucyw.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe

description	pid	process	target process
PID 240 set thread context of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 1928 set thread context of 1108	1928	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Windows\ekygucyw.exe explorer.exe
File created C:\Windows\ekygucyw.exe explorer.exe
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

1756 vssadmin.exe

description	ioc	process
File opened for modification	C:\Windows\ekygucyw.exe	explorer.exe
File created	C:\Windows\ekygucyw.exe	explorer.exe

pid	process
1756	vssadmin.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe

pid process

240 3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 668 vssvc.exe
Token: SeRestorePrivilege 668 vssvc.exe
Token: SeAuditPrivilege 668 vssvc.exe

pid	process
240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe

description	pid	process
Token: SeBackupPrivilege	668	vssvc.exe
Token: SeRestorePrivilege	668	vssvc.exe
Token: SeAuditPrivilege	668	vssvc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exeexplorer.exe

description	pid	process	target process
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 240 wrote to memory of 1928	240	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
PID 1928 wrote to memory of 1108	1928	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	explorer.exe
PID 1928 wrote to memory of 1108	1928	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	explorer.exe
PID 1928 wrote to memory of 1108	1928	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	explorer.exe
PID 1928 wrote to memory of 1108	1928	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	explorer.exe
PID 1928 wrote to memory of 1108	1928	3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe	explorer.exe
PID 1108 wrote to memory of 1756	1108	explorer.exe	vssadmin.exe
PID 1108 wrote to memory of 1756	1108	explorer.exe	vssadmin.exe
PID 1108 wrote to memory of 1756	1108	explorer.exe	vssadmin.exe
PID 1108 wrote to memory of 1756	1108	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
"C:\Users\Admin\AppData\Local\Temp\3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:240

C:\Users\Admin\AppData\Local\Temp\3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe
"C:\Users\Admin\AppData\Local\Temp\3e7d47574f5d777f7271f8f89ad1f0e8073aa8fa0379219bedf69114677caf67.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\system32\explorer.exe"
3⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer Phishing Filter
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1756

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\ProgramData\ywynugoxasijikec\01000000

Filesize
554KB

MD5
b55b5441e076f53443b7bed658f6eacd

SHA1
933be0c4d878e9c3e22e5508085ae10dcd6b4bca

SHA256
7bc4de3f67c570bd41984f6f4cfd47911850dbb03b10cdfe5184e4055cc208b7

SHA512
d692da940c5978cd872a4697581a0ad7acf0a5fc4acb5072be3937af235e9b8b8ff4cbe8f11aeb8d76fef7ebae1f353de54a548dd211076fdf58fdac8cb8df4c

Download Submit
memory/240-54-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1108-69-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1108-80-0x0000000072B71000-0x0000000072B73000-memory.dmp

Filesize
8KB

Download
memory/1108-77-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1108-75-0x00000000750C1000-0x00000000750C3000-memory.dmp

Filesize
8KB

Download
memory/1108-73-0x000000000009A160-mapping.dmp

Download
memory/1108-71-0x0000000000080000-0x00000000000BC000-memory.dmp

Filesize
240KB

Download
memory/1756-79-0x0000000000000000-mapping.dmp

Download
memory/1928-61-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-66-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-65-0x000000000040A61E-mapping.dmp

Download
memory/1928-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-76-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-58-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1928-55-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads