121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba

General

Target

121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe
Size

32KB
MD5

f096b17e48dccdbe2bcbbabf2b3d2abc
SHA1

d47cfbf823d5875dd608f287d8fd2dd7a4b50ff1
SHA256

121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba
SHA512

ab19ad16865de33b6fab2fe05b1156ccef70929d6dd0128309c3ef5f8cd732aaca2a2f4463d1fc50d212cfdbf80a99e88e5215c2b6455e844239b508c3aa2762

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

1208 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1208	server.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\517b1ca2f976f5de9d5c045cfbcb2a75.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\517b1ca2f976f5de9d5c045cfbcb2a75.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe

pid process

1928 121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe

pid	process
1928	121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\517b1ca2f976f5de9d5c045cfbcb2a75 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\517b1ca2f976f5de9d5c045cfbcb2a75 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe
Token: 33	1208	server.exe
Token: SeIncBasePriorityPrivilege	1208	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exeserver.exe

description	pid	process	target process
PID 1928 wrote to memory of 1208	1928	121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe	server.exe
PID 1928 wrote to memory of 1208	1928	121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe	server.exe
PID 1928 wrote to memory of 1208	1928	121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe	server.exe
PID 1928 wrote to memory of 1208	1928	121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe	server.exe
PID 1208 wrote to memory of 836	1208	server.exe	netsh.exe
PID 1208 wrote to memory of 836	1208	server.exe	netsh.exe
PID 1208 wrote to memory of 836	1208	server.exe	netsh.exe
PID 1208 wrote to memory of 836	1208	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe
"C:\Users\Admin\AppData\Local\Temp\121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1928

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1208

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
PID:836

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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\server.exe
Filesize
32KB

MD5
f096b17e48dccdbe2bcbbabf2b3d2abc

SHA1
d47cfbf823d5875dd608f287d8fd2dd7a4b50ff1

SHA256
121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba

SHA512
ab19ad16865de33b6fab2fe05b1156ccef70929d6dd0128309c3ef5f8cd732aaca2a2f4463d1fc50d212cfdbf80a99e88e5215c2b6455e844239b508c3aa2762

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
32KB

MD5
f096b17e48dccdbe2bcbbabf2b3d2abc

SHA1
d47cfbf823d5875dd608f287d8fd2dd7a4b50ff1

SHA256
121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba

SHA512
ab19ad16865de33b6fab2fe05b1156ccef70929d6dd0128309c3ef5f8cd732aaca2a2f4463d1fc50d212cfdbf80a99e88e5215c2b6455e844239b508c3aa2762

Download Submit
\Users\Admin\AppData\Local\Temp\server.exe
Filesize
32KB

MD5
f096b17e48dccdbe2bcbbabf2b3d2abc

SHA1
d47cfbf823d5875dd608f287d8fd2dd7a4b50ff1

SHA256
121049f641b104f6810e31f95b57b99b8b5a36c4e2319c301fda90d607b61bba

SHA512
ab19ad16865de33b6fab2fe05b1156ccef70929d6dd0128309c3ef5f8cd732aaca2a2f4463d1fc50d212cfdbf80a99e88e5215c2b6455e844239b508c3aa2762

Download Submit
memory/836-62-0x0000000000000000-mapping.dmp

Download
memory/1208-57-0x0000000000000000-mapping.dmp

Download
memory/1208-61-0x0000000074B90000-0x000000007513B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-54-0x0000000076011000-0x0000000076013000-memory.dmp

Filesize
8KB

Download
memory/1928-55-0x0000000074B90000-0x000000007513B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads