22503a27c8bd1299e67f484b0c750276323d5a97b9dd45e1da7a935fe377ec1e

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
27-03-2023 09:25

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Server.exe
Size

96KB
MD5

bfd0dcf57209068cc25907ff8ddc17e1
SHA1

8b913990c8691231e1d8e249d6d7f9a59b85dc1e
SHA256

8a16390f705599cacaba51ccf440f7f0a8320e614f71710a594312756788b28d
SHA512

8a2838fd69419a249a37b7569a7c0333e8c36a71df0dc7b8ea414f87392b42e885bcd3fc41b6bda181c6f69d98a5a5367d06b8ff6c7d3e577ea4d2581c2bfe09
SSDEEP

1536:GRtxXnig5/VUJyWryEXe8T1g6hypxc/lkJ5jj1fV8cGDmtB:GhN5/VmbTC6hyQ/OJRj1V8cGCtB

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1044 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

1140 svchost.exe

pid	process
1044	cmd.exe

pid	process
1140	svchost.exe

Drops file in Program Files directory 3 IoCs

Processes:

Server.exe

description	ioc	process
File opened for modification	C:\Program Files\vcflye	Server.exe
File created	C:\Program Files\vcflye\svchost.exe	Server.exe
File opened for modification	C:\Program Files\vcflye\svchost.exe	Server.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Server.exe

description pid process

Token: SeIncBasePriorityPrivilege 884 Server.exe

description	pid	process
Token: SeIncBasePriorityPrivilege	884	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Server.exe

description	pid	process	target process
PID 884 wrote to memory of 1044	884	Server.exe	cmd.exe
PID 884 wrote to memory of 1044	884	Server.exe	cmd.exe
PID 884 wrote to memory of 1044	884	Server.exe	cmd.exe
PID 884 wrote to memory of 1044	884	Server.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
1⤵
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:884

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\Server.exe > nul
2⤵
- Deletes itself
PID:1044

C:\Program Files\vcflye\svchost.exe
"C:\Program Files\vcflye\svchost.exe"
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1140

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\vcflye\svchost.exe
Filesize
96KB

MD5
bfd0dcf57209068cc25907ff8ddc17e1

SHA1
8b913990c8691231e1d8e249d6d7f9a59b85dc1e

SHA256
8a16390f705599cacaba51ccf440f7f0a8320e614f71710a594312756788b28d

SHA512
8a2838fd69419a249a37b7569a7c0333e8c36a71df0dc7b8ea414f87392b42e885bcd3fc41b6bda181c6f69d98a5a5367d06b8ff6c7d3e577ea4d2581c2bfe09

Download Submit