95f698955cf8a1adf8991085da2c45f4441e0423b7db42aae3dc0dd6c4dfaa28

General

Target

chthonic_1.0.0.0.vir.exe
Size

108KB
MD5

4fedceb3fef8b8addd7b34b3cae72700
SHA1

0d688c4a150368ba01513aa816ff524d223aaa79
SHA256

95f698955cf8a1adf8991085da2c45f4441e0423b7db42aae3dc0dd6c4dfaa28
SHA512

b8fd269d0876de12bbb5c9ad0d407d3f08c2778c320fdb2443a2a8efcaa17044fbf46a7f419de5d526ac86cce04db6f86e8223c832c0cdc1c26abd4249f90ff0

Score

7^/10

evasion trojan

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

chthonic_1.0.0.0.vir.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\WINE chthonic_1.0.0.0.vir.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
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

chthonic_1.0.0.0.vir.exe

pid process

1492 chthonic_1.0.0.0.vir.exe

pid	process
1228	Explorer.EXE

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

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\WINE	chthonic_1.0.0.0.vir.exe

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

pid	process
1492	chthonic_1.0.0.0.vir.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

chthonic_1.0.0.0.vir.exechthonic_1.0.0.0.vir.exe

description	pid	process	target process
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 1492 wrote to memory of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe
PID 484 wrote to memory of 1228	484	chthonic_1.0.0.0.vir.exe	Explorer.EXE

Suspicious use of SetThreadContext 1 IoCs

Processes:

chthonic_1.0.0.0.vir.exe

description pid process target process

PID 1492 set thread context of 484 1492 chthonic_1.0.0.0.vir.exe chthonic_1.0.0.0.vir.exe
Suspicious use of FindShellTrayWindow 6 IoCs

Processes:

chthonic_1.0.0.0.vir.exeExplorer.EXE

pid process

484 chthonic_1.0.0.0.vir.exe
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE

description	pid	process	target process
PID 1492 set thread context of 484	1492	chthonic_1.0.0.0.vir.exe	chthonic_1.0.0.0.vir.exe

pid	process
484	chthonic_1.0.0.0.vir.exe
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

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

C:\Users\Admin\AppData\Local\Temp\chthonic_1.0.0.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\chthonic_1.0.0.0.vir.exe"
2⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1492

C:\Users\Admin\AppData\Local\Temp\chthonic_1.0.0.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\chthonic_1.0.0.0.vir.exe"
3⤵
- Identifies Wine through registry keys
- Suspicious use of WriteProcessMemory
- Suspicious use of FindShellTrayWindow
PID:484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

1

T1012

Virtualization/Sandbox Evasion

1

T1497

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/484-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/484-3-0x000000000040E4BC-mapping.dmp

Download
memory/484-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

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