ab4b88ea37d6cfd5f6510acb73a14c27b5ef89f3a0103ac9f36cc465579c16c5

General

Target

tasks_206.vir.exe
Size

329KB
MD5

daaf84966d5d348ba931443dc34e697e
SHA1

c2d2f357706d48017f2f6abef992f9fc38964bc8
SHA256

ab4b88ea37d6cfd5f6510acb73a14c27b5ef89f3a0103ac9f36cc465579c16c5
SHA512

47606574a02e293476f4069e0ca2eba597a832a45668f8bb05de77c88b6f5d5d46895ca64ade3c8f2277aee50f55415138784ad210191d84ee25dd3767d786a9

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

winsec32.exeulneiwc.exeulneiwc.exe

pid process

3020 winsec32.exe
3864 ulneiwc.exe
3340 ulneiwc.exe

pid	process
3020	winsec32.exe
3864	ulneiwc.exe
3340	ulneiwc.exe

Suspicious behavior: EnumeratesProcesses 104 IoCs

Processes:

ulneiwc.exeulneiwc.exe

pid	process
3864	ulneiwc.exe
3864	ulneiwc.exe
3864	ulneiwc.exe
3864	ulneiwc.exe
3864	ulneiwc.exe
3864	ulneiwc.exe
3864	ulneiwc.exe
3864	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe
3340	ulneiwc.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Explorer.EXE

description	pid	process
Token: SeShutdownPrivilege	2976	Explorer.EXE
Token: SeCreatePagefilePrivilege	2976	Explorer.EXE
Token: SeShutdownPrivilege	2976	Explorer.EXE
Token: SeCreatePagefilePrivilege	2976	Explorer.EXE
Token: SeShutdownPrivilege	2976	Explorer.EXE
Token: SeCreatePagefilePrivilege	2976	Explorer.EXE

Drops file in System32 directory 2 IoCs

Processes:

tasks_206.vir.exe

description	ioc	process
File created	C:\Windows\SysWOW64\winsec32.exe	tasks_206.vir.exe
File opened for modification	C:\Windows\SysWOW64\winsec32.exe	tasks_206.vir.exe

Adds Run key to start application 2 TTPs 10 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ulneiwc.exewinsec32.exeExplorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	ulneiwc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	winsec32.exe
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	Explorer.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ikiwyhhuxevaog = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ylvyrie\\ulneiwc.exe\""	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	ulneiwc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ikiwyhhuxevaog = "C:\\Users\\Admin\\AppData\\Roaming\\Ylvyrie\\ulneiwc.exe"	ulneiwc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Ikiwyhhuxevaog = "C:\\Users\\Admin\\AppData\\Roaming\\Ylvyrie\\ulneiwc.exe"	ulneiwc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Ikiwyhhuxevaog = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ylvyrie\\ulneiwc.exe\""	winsec32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	Explorer.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ikiwyhhuxevaog = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ylvyrie\\ulneiwc.exe\""	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

ulneiwc.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	ulneiwc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	ulneiwc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

tasks_206.vir.exeulneiwc.exeulneiwc.exe

description	pid	process	target process
PID 3888 wrote to memory of 3864	3888	tasks_206.vir.exe	ulneiwc.exe
PID 3888 wrote to memory of 3864	3888	tasks_206.vir.exe	ulneiwc.exe
PID 3888 wrote to memory of 3864	3888	tasks_206.vir.exe	ulneiwc.exe
PID 3888 wrote to memory of 3324	3888	tasks_206.vir.exe	cmd.exe
PID 3888 wrote to memory of 3324	3888	tasks_206.vir.exe	cmd.exe
PID 3888 wrote to memory of 3324	3888	tasks_206.vir.exe	cmd.exe
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3864 wrote to memory of 3340	3864	ulneiwc.exe	ulneiwc.exe
PID 3864 wrote to memory of 3340	3864	ulneiwc.exe	ulneiwc.exe
PID 3864 wrote to memory of 3340	3864	ulneiwc.exe	ulneiwc.exe
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3864 wrote to memory of 2976	3864	ulneiwc.exe	Explorer.EXE
PID 3340 wrote to memory of 2972	3340	ulneiwc.exe	ctfmon.exe
PID 3340 wrote to memory of 2972	3340	ulneiwc.exe	ctfmon.exe
PID 3340 wrote to memory of 2972	3340	ulneiwc.exe	ctfmon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

ulneiwc.exe

pid process

3340 ulneiwc.exe
3340 ulneiwc.exe
Drops file in Windows directory 1 IoCs

Processes:

tasks_206.vir.exe

description ioc process

File created C:\Windows\Tasks\Security Center Update - 826859586.job tasks_206.vir.exe

pid	process
3340	ulneiwc.exe
3340	ulneiwc.exe

description	ioc	process
File created	C:\Windows\Tasks\Security Center Update - 826859586.job	tasks_206.vir.exe

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

ulneiwc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	ulneiwc.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	ulneiwc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4	ulneiwc.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\AFE5D244A8D1194230FF479FE2F897BBCD7A8CB4\Blob = 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	ulneiwc.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Adds Run key to start application
PID:2976

C:\Users\Admin\AppData\Local\Temp\tasks_206.vir.exe
"C:\Users\Admin\AppData\Local\Temp\tasks_206.vir.exe"
2⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
- Drops file in Windows directory
PID:3888

C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe
"C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3864

C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe
"C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe" -child
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
- Suspicious use of SetWindowsHookEx
- Modifies system certificate store
PID:3340

C:\Windows\SysWOW64\ctfmon.exe
ctfmon.exe
5⤵
PID:2972

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp58b3d438.bat"
3⤵
PID:3324

C:\Windows\SysWOW64\winsec32.exe
"C:\Windows\SysWOW64\winsec32.exe" -service "C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
PID:3020

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Install Root Certificate

1

T1130

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCookies\CJKDNYMY.cookie

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C:\Users\Admin\AppData\Local\Temp\tmp58b3d438.bat

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C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe

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C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe

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C:\Users\Admin\AppData\Roaming\Ylvyrie\ulneiwc.exe

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C:\Windows\SysWOW64\winsec32.exe

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C:\Windows\SysWOW64\winsec32.exe

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memory/2972-15-0x0000000000000000-mapping.dmp

Download
memory/2976-6-0x0000000000C10000-0x0000000000C11000-memory.dmp

Filesize
4KB

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memory/3324-5-0x0000000000000000-mapping.dmp

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memory/3340-8-0x0000000000000000-mapping.dmp

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memory/3864-3-0x0000000000000000-mapping.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads