3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574

Analysis

max time kernel
137s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21-08-2024 01:28

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General

Target

3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe
Size

681KB
MD5

7fe2322db3d58f5b993fadbaaff908be
SHA1

1d715a90d9874e61d90c0c84a1095887009c53b2
SHA256

3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574
SHA512

097198970785255e89747b9f67c79528a92a50d490e3e8c7c441fd76d6110bf192ed26d1573b7023dc28f54e01917586ea2ec6d50e58e6eb1efb3f168022a9b6
SSDEEP

12288:bsCza+8quapcNxkVO4S2ojdbTv2dSFW7QkgzV7cwRTrjEzNWVtL70:vza+v0QoJvOuofgzVowRTfEzgVZY

Score

4^/10

discovery

Malware Config

Signatures

Drops file in Windows directory 1 IoCs

Processes:

dw20.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp dw20.exe

description	ioc	process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exedw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

dw20.exe

description	pid	process
Token: SeRestorePrivilege	5072	dw20.exe
Token: SeBackupPrivilege	5072	dw20.exe
Token: SeBackupPrivilege	5072	dw20.exe
Token: SeBackupPrivilege	5072	dw20.exe
Token: SeBackupPrivilege	5072	dw20.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe

description	pid	process	target process
PID 3976 wrote to memory of 5072	3976	3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe	dw20.exe
PID 3976 wrote to memory of 5072	3976	3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe	dw20.exe
PID 3976 wrote to memory of 5072	3976	3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe
"C:\Users\Admin\AppData\Local\Temp\3f8807728cce4b1e55293cd3577fdd36457c1568a23594d4cbfaeab45a10c574.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3976

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 1088
2⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:5072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3976-0-0x0000000074952000-0x0000000074953000-memory.dmp

Filesize
4KB

Download
memory/3976-1-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/3976-2-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/3976-3-0x0000000074952000-0x0000000074953000-memory.dmp

Filesize
4KB

Download
memory/3976-4-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download
memory/3976-11-0x0000000074950000-0x0000000074F01000-memory.dmp

Filesize
5.7MB

Download