a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181

General

Target

a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe
Size

32KB
MD5

f895f2c00c328e2d2a7bce695c63020f
SHA1

6eea1cbe833845785c800348b5293ff6a1b8cb7a
SHA256

a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181
SHA512

3f351e7f3943c64c1e99eb03c92af8243589b2ff661b4fbf5f1a91af2db257c3209ac71014027ce5663e48e4b9d8c03ae29cf87bbd2d3fa5ee9289572cd0904e

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

1220 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1220	server.exe

Drops startup file 2 IoCs

Processes:

server.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a684bb567bad75f3e8c3ee386f57b056.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a684bb567bad75f3e8c3ee386f57b056.exe	server.exe

Loads dropped DLL 1 IoCs

Processes:

a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe

pid process

836 a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\a684bb567bad75f3e8c3ee386f57b056 = "\"C:\\Users\\Admin\\AppData\\Roaming\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\a684bb567bad75f3e8c3ee386f57b056 = "\"C:\\Users\\Admin\\AppData\\Roaming\\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 behavior: EnumeratesProcesses 2 IoCs

Processes:

a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe

pid	process
836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe
836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

Processes:

a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exeserver.exe

description	pid	process
Token: SeDebugPrivilege	836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe
Token: SeDebugPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe
Token: 33	1220	server.exe
Token: SeIncBasePriorityPrivilege	1220	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exeserver.exe

description	pid	process	target process
PID 836 wrote to memory of 1220	836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe	server.exe
PID 836 wrote to memory of 1220	836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe	server.exe
PID 836 wrote to memory of 1220	836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe	server.exe
PID 836 wrote to memory of 1220	836	a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe	server.exe
PID 1220 wrote to memory of 1548	1220	server.exe	netsh.exe
PID 1220 wrote to memory of 1548	1220	server.exe	netsh.exe
PID 1220 wrote to memory of 1548	1220	server.exe	netsh.exe
PID 1220 wrote to memory of 1548	1220	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe
"C:\Users\Admin\AppData\Local\Temp\a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:836

C:\Users\Admin\AppData\Roaming\server.exe
"C:\Users\Admin\AppData\Roaming\server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1220

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
3⤵
PID:1548

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\Roaming\server.exe
Filesize
32KB

MD5
f895f2c00c328e2d2a7bce695c63020f

SHA1
6eea1cbe833845785c800348b5293ff6a1b8cb7a

SHA256
a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181

SHA512
3f351e7f3943c64c1e99eb03c92af8243589b2ff661b4fbf5f1a91af2db257c3209ac71014027ce5663e48e4b9d8c03ae29cf87bbd2d3fa5ee9289572cd0904e

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

MD5
f895f2c00c328e2d2a7bce695c63020f

SHA1
6eea1cbe833845785c800348b5293ff6a1b8cb7a

SHA256
a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181

SHA512
3f351e7f3943c64c1e99eb03c92af8243589b2ff661b4fbf5f1a91af2db257c3209ac71014027ce5663e48e4b9d8c03ae29cf87bbd2d3fa5ee9289572cd0904e

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

MD5
f895f2c00c328e2d2a7bce695c63020f

SHA1
6eea1cbe833845785c800348b5293ff6a1b8cb7a

SHA256
a4106262cdaf3660f6825e88667e2970a48e897060f65f789f36db3fb7517181

SHA512
3f351e7f3943c64c1e99eb03c92af8243589b2ff661b4fbf5f1a91af2db257c3209ac71014027ce5663e48e4b9d8c03ae29cf87bbd2d3fa5ee9289572cd0904e

Download Submit
memory/836-54-0x0000000075721000-0x0000000075723000-memory.dmp

Filesize
8KB

Download
memory/836-55-0x00000000744D0000-0x0000000074A7B000-memory.dmp

Filesize
5.7MB

Download
memory/1220-57-0x0000000000000000-mapping.dmp

Download
memory/1220-61-0x00000000744D0000-0x0000000074A7B000-memory.dmp

Filesize
5.7MB

Download
memory/1548-62-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads