b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2024 02:00

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General

Target

b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe
Size

225KB
MD5

3924b63a3fcc471a71870994c8384cb3
SHA1

dddec0589cae6896e54434b01e16bc2f2c10f3ce
SHA256

b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b
SHA512

587502167457afc7fd986c3b5a5431b715c1aebb9632d6c4cbe924124ee87a6b6f591520473cbb4878d78526d31d3424988071db898fdc71f8ecdcf48d3bd3c7
SSDEEP

6144:xA2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:xATuTAnKGwUAW3ycQqgf

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
4664	3176	WerFault.exe	winver.exe
3184	4784	WerFault.exe	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.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:

b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe

pid	process
4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe
4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

Explorer.EXE

description	pid	process
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

winver.exeb8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe

pid process

3176 winver.exe
4784 b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3528 Explorer.EXE

pid	process
3176	winver.exe
4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe

pid	process
3528	Explorer.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exewinver.exe

description	pid	process	target process
PID 4784 wrote to memory of 3176	4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe	winver.exe
PID 4784 wrote to memory of 3176	4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe	winver.exe
PID 4784 wrote to memory of 3176	4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe	winver.exe
PID 4784 wrote to memory of 3176	4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe	winver.exe
PID 3176 wrote to memory of 3528	3176	winver.exe	Explorer.EXE
PID 4784 wrote to memory of 3528	4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe	Explorer.EXE
PID 4784 wrote to memory of 2544	4784	b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe	sihost.exe

C:\Windows\system32\sihost.exe
sihost.exe
1⤵
PID:2544

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3528

C:\Users\Admin\AppData\Local\Temp\b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe
"C:\Users\Admin\AppData\Local\Temp\b8abcf4ca1f0843a3eedefbde7a6d23ba97d6799ed41e65e51e9e07c38ee6a2b.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4784

C:\Windows\SysWOW64\winver.exe
winver
3⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 300
4⤵
- Program crash
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4784 -s 856
3⤵
- Program crash
PID:3184

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:3264

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3176 -ip 3176
1⤵
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4784 -ip 4784
1⤵
PID:3028

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/2544-12-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2544-18-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/3528-4-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3528-5-0x0000000000750000-0x0000000000756000-memory.dmp

Filesize
24KB

Download
memory/3528-10-0x0000000000760000-0x0000000000766000-memory.dmp

Filesize
24KB

Download
memory/4784-1-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Filesize
6.3MB

Download
memory/4784-2-0x0000000002520000-0x0000000002521000-memory.dmp

Filesize
4KB

Download
memory/4784-6-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4784-11-0x00000000057B0000-0x00000000061B0000-memory.dmp

Filesize
10.0MB

Download
memory/4784-13-0x00000000057B0000-0x00000000061B0000-memory.dmp

Filesize
10.0MB

Download
memory/4784-17-0x00000000045A0000-0x0000000004BF8000-memory.dmp

Filesize
6.3MB

Download