5300a0a0ca9bc1ac90ad1543fe3a1687db23b8f05194f86263938c57e0503b84

General

Target

cS7il0zOGtdU05K.exe
Size

364KB
MD5

b0cac1cdd3c9ab7d332811850ddd8ab9
SHA1

750deac873706d16c1180ac9c3eda6f435828c3e
SHA256

5300a0a0ca9bc1ac90ad1543fe3a1687db23b8f05194f86263938c57e0503b84
SHA512

ebf73440a56091edacee8f04eb61f7aba66f5ca024bb3a10937eb41462146ab48295a9419e0e44fc5c5ec47affa0baf212555411a5f3f09ca9a946e20c3372fc

Score

7^/10

evasion trojan

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

cS7il0zOGtdU05K.execmstp.exe

pid	process
1028	cS7il0zOGtdU05K.exe
1028	cS7il0zOGtdU05K.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe
1876	cmstp.exe

Suspicious use of FindShellTrayWindow 5 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

788 schtasks.exe

pid	process
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

pid	process
788	schtasks.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

cS7il0zOGtdU05K.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1492 wrote to memory of 788	1492	cS7il0zOGtdU05K.exe	schtasks.exe
PID 1492 wrote to memory of 788	1492	cS7il0zOGtdU05K.exe	schtasks.exe
PID 1492 wrote to memory of 788	1492	cS7il0zOGtdU05K.exe	schtasks.exe
PID 1492 wrote to memory of 788	1492	cS7il0zOGtdU05K.exe	schtasks.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1492 wrote to memory of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1228 wrote to memory of 1876	1228	Explorer.EXE	cmstp.exe
PID 1876 wrote to memory of 1892	1876	cmstp.exe	cmd.exe
PID 1876 wrote to memory of 1892	1876	cmstp.exe	cmd.exe
PID 1876 wrote to memory of 1892	1876	cmstp.exe	cmd.exe
PID 1876 wrote to memory of 1892	1876	cmstp.exe	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

cS7il0zOGtdU05K.execS7il0zOGtdU05K.execmstp.exe

description	pid	process	target process
PID 1492 set thread context of 1028	1492	cS7il0zOGtdU05K.exe	cS7il0zOGtdU05K.exe
PID 1028 set thread context of 1228	1028	cS7il0zOGtdU05K.exe	Explorer.EXE
PID 1876 set thread context of 1228	1876	cmstp.exe	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cS7il0zOGtdU05K.execmstp.exe

description pid process

Token: SeDebugPrivilege 1028 cS7il0zOGtdU05K.exe
Token: SeDebugPrivilege 1876 cmstp.exe
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

cS7il0zOGtdU05K.execmstp.exe

pid process

1028 cS7il0zOGtdU05K.exe
1028 cS7il0zOGtdU05K.exe
1028 cS7il0zOGtdU05K.exe
1876 cmstp.exe
1876 cmstp.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1892 cmd.exe
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Explorer.EXE

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1028	cS7il0zOGtdU05K.exe
Token: SeDebugPrivilege	1876	cmstp.exe

pid	process
1892	cmd.exe

pid	process
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
- Suspicious use of SendNotifyMessage
- Checks whether UAC is enabled
PID:1228

C:\Users\Admin\AppData\Local\Temp\cS7il0zOGtdU05K.exe
"C:\Users\Admin\AppData\Local\Temp\cS7il0zOGtdU05K.exe"
2⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1492

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SfeAvvANvSVV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB579.tmp"
3⤵
- Creates scheduled task(s)
PID:788

C:\Users\Admin\AppData\Local\Temp\cS7il0zOGtdU05K.exe
"{path}"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: MapViewOfSection
PID:1028

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1508

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1484

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1692

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1296

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1788

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1812

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1768

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1776

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1760

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1844

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1868

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1852

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1884

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: MapViewOfSection
PID:1876

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\cS7il0zOGtdU05K.exe"
3⤵
- Deletes itself
PID:1892

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB579.tmp

Download Submit
memory/788-0-0x0000000000000000-mapping.dmp

Download
memory/1028-2-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/1028-3-0x000000000041B6E0-mapping.dmp

Download
memory/1876-4-0x0000000000000000-mapping.dmp

Download
memory/1876-5-0x0000000000D10000-0x0000000000D28000-memory.dmp

Filesize
96KB

Download
memory/1876-7-0x0000000000BB0000-0x0000000000CCC000-memory.dmp

Filesize
1.1MB

Download
memory/1892-6-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads