4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
02-07-2024 21:27

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General

Target

4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe
Size

237KB
MD5

f1991c3ddc6d2df68e80627da375b71d
SHA1

e75efd346eccdd99a1e206f6a87542477249e5d0
SHA256

4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787
SHA512

3957fb1b4bb9ee26a198b1ba19ce5f99ddc45f14ed20167a37e7275105f822e00751d373bb6dd5c5d747588dd0ba5f3818ca3ea9b9a38666ce61d51336c790a8
SSDEEP

6144:XA2P27yTAnKGw0hjFhSR/W1nyAJ9v0pMtRCpYQ:XATuTAnKGwUAWVycQqgj

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
4528	2100	WerFault.exe	winver.exe
3864	4132	WerFault.exe	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\2a\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe

pid	process
4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe
4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Explorer.EXE

description	pid	process
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE
Token: SeShutdownPrivilege	3444	Explorer.EXE
Token: SeCreatePagefilePrivilege	3444	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

winver.exe4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe

pid process

2100 winver.exe
4132 4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe

pid	process
2100	winver.exe
4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exewinver.exe

description	pid	process	target process
PID 4132 wrote to memory of 2100	4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe	winver.exe
PID 4132 wrote to memory of 2100	4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe	winver.exe
PID 4132 wrote to memory of 2100	4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe	winver.exe
PID 4132 wrote to memory of 2100	4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe	winver.exe
PID 2100 wrote to memory of 3444	2100	winver.exe	Explorer.EXE
PID 4132 wrote to memory of 3444	4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe	Explorer.EXE
PID 4132 wrote to memory of 3060	4132	4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe	sihost.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:3060

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3444

C:\Users\Admin\AppData\Local\Temp\4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe
"C:\Users\Admin\AppData\Local\Temp\4ff8c32b5123d47bea4a1b1d850778f81fcdc21f177e18bae0481c35a282c787.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4132

C:\Windows\SysWOW64\winver.exe
winver
3⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 300
4⤵
- Program crash
PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4132 -s 964
3⤵
- Program crash
PID:3864

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2100 -ip 2100
1⤵
PID:3604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 4132 -ip 4132
1⤵
PID:3384

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/3060-12-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download
memory/3060-18-0x0000000000500000-0x0000000000506000-memory.dmp

Filesize
24KB

Download
memory/3444-4-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3444-5-0x0000000001000000-0x0000000001006000-memory.dmp

Filesize
24KB

Download
memory/3444-10-0x0000000002AC0000-0x0000000002AC6000-memory.dmp

Filesize
24KB

Download
memory/4132-1-0x0000000004710000-0x0000000004D68000-memory.dmp

Filesize
6.3MB

Download
memory/4132-2-0x0000000003DD0000-0x0000000003DD1000-memory.dmp

Filesize
4KB

Download
memory/4132-6-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/4132-9-0x0000000005B20000-0x0000000006520000-memory.dmp

Filesize
10.0MB

Download
memory/4132-13-0x0000000005B20000-0x0000000006520000-memory.dmp

Filesize
10.0MB

Download
memory/4132-17-0x0000000004710000-0x0000000004D68000-memory.dmp

Filesize
6.3MB

Download