1adc4f1c7e5cd29791e074dd27ef5bb4e6a9c14b5d8def6a4aa4d5d0e5c58fe6

Analysis

max time kernel
135s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21-05-2024 16:37

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General

Target

Server.exe
Size

76KB
MD5

9ca0dca75c4d1c1453d5ab26a86d85c2
SHA1

c85a55c7c628231beb5f8d6a32e75646c1dc7348
SHA256

1adc4f1c7e5cd29791e074dd27ef5bb4e6a9c14b5d8def6a4aa4d5d0e5c58fe6
SHA512

88efd5b1f70beceff4f99ca9834b80318ccde6ed1fe30c39de7d494e4b0b5bf00dcf52ffdc19e032367b076be53d1f18a9a9dbf1f26648e095375dec653a27ed
SSDEEP

1536:sjAsQye1NzY5wv3KxquaqjmRLxSXzZpozkZDt9g7:H9ye1NzYzVaqSRLxgNp5Zj

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Svchost.exe

pid process

2548 Svchost.exe
Loads dropped DLL 2 IoCs

Processes:

Server.exe

pid process

1540 Server.exe
1540 Server.exe

pid	process
2548	Svchost.exe

pid	process
1540	Server.exe
1540	Server.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Svchost = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Svchost.exe"	Svchost.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

Server.exeSvchost.exe

pid process

1540 Server.exe
1540 Server.exe
2548 Svchost.exe
2548 Svchost.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Svchost.exe

pid process

2548 Svchost.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Server.exeSvchost.exe

description pid process

Token: SeDebugPrivilege 1540 Server.exe
Token: SeDebugPrivilege 2548 Svchost.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Server.exeSvchost.exe

pid process

1540 Server.exe
2548 Svchost.exe

pid	process
1540	Server.exe
1540	Server.exe
2548	Svchost.exe
2548	Svchost.exe

pid	process
2548	Svchost.exe

description	pid	process
Token: SeDebugPrivilege	1540	Server.exe
Token: SeDebugPrivilege	2548	Svchost.exe

pid	process
1540	Server.exe
2548	Svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Server.exe

description	pid	process	target process
PID 1540 wrote to memory of 2548	1540	Server.exe	Svchost.exe
PID 1540 wrote to memory of 2548	1540	Server.exe	Svchost.exe
PID 1540 wrote to memory of 2548	1540	Server.exe	Svchost.exe
PID 1540 wrote to memory of 2548	1540	Server.exe	Svchost.exe

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1540

C:\Users\Admin\AppData\Roaming\Microsoft\Svchost.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Svchost.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:2548

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\mlt.tmp
Filesize
44B

MD5
5389b11510f65424863e2e9724bd65e4

SHA1
071102005e3217b50283b71ee33858bb15606549

SHA256
fecb0cdb9664c0c83a84dff897fecff3773df1d4d5a6fc5c84e2187027315fa7

SHA512
ba78a6c2619bd7a4d4428a5b0b739e109dfa9ddb8925a005067f8b7091744bd9e16e007d32f62ae42768f3f45fb8aefe496f5a3ef617862127b53a88f86514ff

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Svchost.exe
Filesize
76KB

MD5
9ca0dca75c4d1c1453d5ab26a86d85c2

SHA1
c85a55c7c628231beb5f8d6a32e75646c1dc7348

SHA256
1adc4f1c7e5cd29791e074dd27ef5bb4e6a9c14b5d8def6a4aa4d5d0e5c58fe6

SHA512
88efd5b1f70beceff4f99ca9834b80318ccde6ed1fe30c39de7d494e4b0b5bf00dcf52ffdc19e032367b076be53d1f18a9a9dbf1f26648e095375dec653a27ed

Download Submit
memory/1540-0-0x0000000074D41000-0x0000000074D42000-memory.dmp

Filesize
4KB

Download
memory/1540-1-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/1540-2-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/1540-14-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-15-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-16-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-18-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-19-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-20-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download