Analysis
-
max time kernel
118s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20240709-en -
resource tags
arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system -
submitted
12-07-2024 02:25
Static task
static1
Behavioral task
behavioral1
Sample
27c2bcb27d292b1b79776ab987f9b4d0N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
27c2bcb27d292b1b79776ab987f9b4d0N.exe
Resource
win10v2004-20240709-en
General
-
Target
27c2bcb27d292b1b79776ab987f9b4d0N.exe
-
Size
225KB
-
MD5
27c2bcb27d292b1b79776ab987f9b4d0
-
SHA1
be8738c974f5a70c0faf495d1a98d63d16a510ff
-
SHA256
aeddb1830c3b0d633ce7dd341d727510c15294bfaf02ab2fdd4efacaa8d3ca07
-
SHA512
faa523d1b7129bac41fd8520fe7e306542231f2e5737e2980fcf8b42d7be4cf9c9ba663ac4fc4f98c7d103cb2b1c8fff4f73cda26ce5b5ee52c61de903375c13
-
SSDEEP
6144:7A2P27yTAnKGw0hjFhSR/W11yAJ9v0pMtRCpYM:7ATuTAnKGwUAW3ycQqgf
Malware Config
Signatures
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 2304 4376 WerFault.exe winver.exe 4060 1356 WerFault.exe 27c2bcb27d292b1b79776ab987f9b4d0N.exe -
Modifies data under HKEY_USERS 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\26\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client" svchost.exe -
Modifies registry class 1 IoCs
Processes:
Explorer.EXEdescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Explorer.EXE -
Suspicious use of AdjustPrivilegeToken 16 IoCs
Processes:
Explorer.EXEdescription pid process Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE Token: SeShutdownPrivilege 3428 Explorer.EXE Token: SeCreatePagefilePrivilege 3428 Explorer.EXE -
Suspicious use of FindShellTrayWindow 4 IoCs
Processes:
winver.exe27c2bcb27d292b1b79776ab987f9b4d0N.exeExplorer.EXEpid process 4376 winver.exe 1356 27c2bcb27d292b1b79776ab987f9b4d0N.exe 3428 Explorer.EXE 3428 Explorer.EXE -
Suspicious use of UnmapMainImage 1 IoCs
Processes:
Explorer.EXEpid process 3428 Explorer.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
27c2bcb27d292b1b79776ab987f9b4d0N.exewinver.exedescription pid process target process PID 1356 wrote to memory of 4376 1356 27c2bcb27d292b1b79776ab987f9b4d0N.exe winver.exe PID 1356 wrote to memory of 4376 1356 27c2bcb27d292b1b79776ab987f9b4d0N.exe winver.exe PID 1356 wrote to memory of 4376 1356 27c2bcb27d292b1b79776ab987f9b4d0N.exe winver.exe PID 1356 wrote to memory of 4376 1356 27c2bcb27d292b1b79776ab987f9b4d0N.exe winver.exe PID 4376 wrote to memory of 3428 4376 winver.exe Explorer.EXE PID 1356 wrote to memory of 3428 1356 27c2bcb27d292b1b79776ab987f9b4d0N.exe Explorer.EXE
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
-
C:\Users\Admin\AppData\Local\Temp\27c2bcb27d292b1b79776ab987f9b4d0N.exe"C:\Users\Admin\AppData\Local\Temp\27c2bcb27d292b1b79776ab987f9b4d0N.exe"2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\winver.exewinver3⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4376 -s 3004⤵
- Program crash
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1356 -s 8763⤵
- Program crash
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman1⤵
- Modifies data under HKEY_USERS
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4376 -ip 43761⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1356 -ip 13561⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1356-1-0x0000000004680000-0x0000000004CD8000-memory.dmpFilesize
6.3MB
-
memory/1356-2-0x0000000003D70000-0x0000000003D71000-memory.dmpFilesize
4KB
-
memory/1356-6-0x0000000000400000-0x000000000043C000-memory.dmpFilesize
240KB
-
memory/1356-13-0x0000000004680000-0x0000000004CD8000-memory.dmpFilesize
6.3MB
-
memory/3428-4-0x0000000000600000-0x0000000000606000-memory.dmpFilesize
24KB
-
memory/3428-5-0x0000000000600000-0x0000000000606000-memory.dmpFilesize
24KB
-
memory/3428-10-0x0000000000640000-0x0000000000646000-memory.dmpFilesize
24KB