a2c863ccc540a385073d3b08ab8fb1ec6c1d23b599b57a13a604002cba27f2a4

Analysis

max time kernel
124s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2023 00:39

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General

Target

Servexxxr.exe
Size

93KB
MD5

bac3e3a27867ed4fec83edffd7cdf851
SHA1

ee1339a375d50b0aa1459543f2aacaab5c810c9c
SHA256

a2c863ccc540a385073d3b08ab8fb1ec6c1d23b599b57a13a604002cba27f2a4
SHA512

09ca8b12914d0da03797f8b34c7cd5f6ea42e94919d0c40270b88a110ee285372ad910b506311662a77620426a03dbf8cc8daccb6e9c4ddf6ece060f428b4721
SSDEEP

1536:1U33wHyNxrBhh5YLg1jEwzGi1dDbDEgS:1UKyNxrBhLggCi1dj9

Score

8^/10

evasion

Malware Config

Signatures

Modifies Windows Firewall 1 TTPs 2 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exenetsh.exe

pid process

2036 netsh.exe
4428 netsh.exe

pid	process
2036	netsh.exe
4428	netsh.exe

Drops file in System32 directory 8 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{336BB4CD-08B2-4BEE-B521-CEB34A961BDC}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{FED0556C-9C95-4FE3-90D1-7C842660BC23}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{EFD6BD40-1E51-461A-97AD-F340098DA388}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DFBFFAB0-70A2-496D-82C4-CE1230922607}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{C3ECA32A-E4C8-45B9-BB92-390FC12C91AF}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{AF3307A9-A16D-49A7-9EF2-A59B1BE6A13A}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{B8FB045D-59F4-4653-8555-B90F95A63629}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{EFA7BB62-9DC7-4183-8CF2-4159EFBD9800}.catalogItem	svchost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4172 PING.EXE
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Servexxxr.exe

pid process

2248 Servexxxr.exe

pid	process
4172	PING.EXE

pid	process
2248	Servexxxr.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

Servexxxr.exe

description	pid	process
Token: SeDebugPrivilege	2248	Servexxxr.exe
Token: 33	2248	Servexxxr.exe
Token: SeIncBasePriorityPrivilege	2248	Servexxxr.exe
Token: 33	2248	Servexxxr.exe
Token: SeIncBasePriorityPrivilege	2248	Servexxxr.exe
Token: 33	2248	Servexxxr.exe
Token: SeIncBasePriorityPrivilege	2248	Servexxxr.exe
Token: 33	2248	Servexxxr.exe
Token: SeIncBasePriorityPrivilege	2248	Servexxxr.exe
Token: 33	2248	Servexxxr.exe
Token: SeIncBasePriorityPrivilege	2248	Servexxxr.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Servexxxr.execmd.exe

description	pid	process	target process
PID 2248 wrote to memory of 2036	2248	Servexxxr.exe	netsh.exe
PID 2248 wrote to memory of 2036	2248	Servexxxr.exe	netsh.exe
PID 2248 wrote to memory of 2036	2248	Servexxxr.exe	netsh.exe
PID 2248 wrote to memory of 4428	2248	Servexxxr.exe	netsh.exe
PID 2248 wrote to memory of 4428	2248	Servexxxr.exe	netsh.exe
PID 2248 wrote to memory of 4428	2248	Servexxxr.exe	netsh.exe
PID 2248 wrote to memory of 4508	2248	Servexxxr.exe	cmd.exe
PID 2248 wrote to memory of 4508	2248	Servexxxr.exe	cmd.exe
PID 2248 wrote to memory of 4508	2248	Servexxxr.exe	cmd.exe
PID 4508 wrote to memory of 4172	4508	cmd.exe	PING.EXE
PID 4508 wrote to memory of 4172	4508	cmd.exe	PING.EXE
PID 4508 wrote to memory of 4172	4508	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\Servexxxr.exe
"C:\Users\Admin\AppData\Local\Temp\Servexxxr.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2248

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Servexxxr.exe" "Servexxxr.exe" ENABLE
2⤵
- Modifies Windows Firewall
PID:2036

C:\Windows\SysWOW64\netsh.exe
netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\Servexxxr.exe"
2⤵
- Modifies Windows Firewall
PID:4428

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\Servexxxr.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4508

C:\Windows\SysWOW64\PING.EXE
ping 0 -n 2
3⤵
- Runs ping.exe
PID:4172

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:4728

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Remote System Discovery

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2248-134-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

Filesize
64KB

Download
memory/2248-135-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

Filesize
64KB

Download
memory/2248-136-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

Filesize
64KB

Download
memory/2248-137-0x0000000000AA0000-0x0000000000AB0000-memory.dmp

Filesize
64KB

Download