a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e

General

Target

a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe
Size

443KB
MD5

21b7aa9ee2bf500e086236044c072e95
SHA1

f2f6e913df46609733c6b60e1b463a729c4d5a14
SHA256

a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e
SHA512

ce038c09e26d10dbbecdb4e09f84450ae55794e9b1fb0cf113106c8a3cb420ed3983baed9b35384f0fba09842416230515bdcabbe4b7cbf0891b9a377faf5984
SSDEEP

6144:iybSKuA7VgHTXmFvmrDJR+fueWf6z7JlEaX7UL7kz:iybSOWHTgIIWf6zXbU

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

1464 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1460 netsh.exe

pid	process
1464	server.exe

pid	process
1460	netsh.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\e54ea5bda0ba3d62cae87c94228e53f6.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e54ea5bda0ba3d62cae87c94228e53f6.exe	server.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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\e54ea5bda0ba3d62cae87c94228e53f6 = "\"C:\\ProgramData\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e54ea5bda0ba3d62cae87c94228e53f6 = "\"C:\\ProgramData\\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 18 IoCs

Processes:

a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exeserver.exe

description	pid	process
Token: SeDebugPrivilege	1584	a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe
Token: 33	1584	a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe
Token: SeIncBasePriorityPrivilege	1584	a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe
Token: SeDebugPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe
Token: 33	1464	server.exe
Token: SeIncBasePriorityPrivilege	1464	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exeserver.exe

description	pid	process	target process
PID 1584 wrote to memory of 1464	1584	a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe	server.exe
PID 1584 wrote to memory of 1464	1584	a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe	server.exe
PID 1584 wrote to memory of 1464	1584	a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe	server.exe
PID 1464 wrote to memory of 1460	1464	server.exe	netsh.exe
PID 1464 wrote to memory of 1460	1464	server.exe	netsh.exe
PID 1464 wrote to memory of 1460	1464	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe
"C:\Users\Admin\AppData\Local\Temp\a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1584

C:\ProgramData\server.exe
"C:\ProgramData\server.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\system32\netsh.exe
netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1460

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:\ProgramData\server.exe
Filesize
443KB

MD5
21b7aa9ee2bf500e086236044c072e95

SHA1
f2f6e913df46609733c6b60e1b463a729c4d5a14

SHA256
a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e

SHA512
ce038c09e26d10dbbecdb4e09f84450ae55794e9b1fb0cf113106c8a3cb420ed3983baed9b35384f0fba09842416230515bdcabbe4b7cbf0891b9a377faf5984

Download Submit
C:\ProgramData\server.exe
Filesize
443KB

MD5
21b7aa9ee2bf500e086236044c072e95

SHA1
f2f6e913df46609733c6b60e1b463a729c4d5a14

SHA256
a4e810d15491dd0d381e6846ef18d89d41d351b3995d8ddc9bc68b68d739506e

SHA512
ce038c09e26d10dbbecdb4e09f84450ae55794e9b1fb0cf113106c8a3cb420ed3983baed9b35384f0fba09842416230515bdcabbe4b7cbf0891b9a377faf5984

Download Submit
memory/1460-62-0x0000000000000000-mapping.dmp

Download
memory/1464-57-0x0000000000000000-mapping.dmp

Download
memory/1464-60-0x000007FEF3340000-0x000007FEF3D63000-memory.dmp

Filesize
10.1MB

Download
memory/1464-61-0x000007FEF1740000-0x000007FEF27D6000-memory.dmp

Filesize
16.6MB

Download
memory/1464-64-0x0000000001FC6000-0x0000000001FE5000-memory.dmp

Filesize
124KB

Download
memory/1464-65-0x0000000001FC6000-0x0000000001FE5000-memory.dmp

Filesize
124KB

Download
memory/1584-54-0x000007FEF3340000-0x000007FEF3D63000-memory.dmp

Filesize
10.1MB

Download
memory/1584-55-0x000007FEF1740000-0x000007FEF27D6000-memory.dmp

Filesize
16.6MB

Download
memory/1584-56-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads