405b27ce24ff7c6e7eb52b5680cb11106a51173f5e2320535923baa38e7b900f

Analysis

max time kernel
92s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
20-05-2022 23:00

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General

Target

Purchase Order 072020.exe
Size

444KB
MD5

ca640401fff10aa01cff2d098411b845
SHA1

1236531f23e84c85793121181af1f111ed187b06
SHA256

adbb69f96dbc24c4fe050f4b99e01647393fb26cd482ddbcbf6faf23f6470be0
SHA512

1dadff4601d9067b4a4190d73a795798023a696d3fb480725035e8732b6436e44c590cc910e1cab9c35fc633de6df2ccf8fb8e5a8253f202e796708242b33f20

Score

4^/10

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

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	4728	dw20.exe
Token: SeBackupPrivilege	4728	dw20.exe
Token: SeBackupPrivilege	4728	dw20.exe
Token: SeBackupPrivilege	4728	dw20.exe
Token: SeBackupPrivilege	4728	dw20.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Purchase Order 072020.exe

description	pid	process	target process
PID 1928 wrote to memory of 4728	1928	Purchase Order 072020.exe	dw20.exe
PID 1928 wrote to memory of 4728	1928	Purchase Order 072020.exe	dw20.exe
PID 1928 wrote to memory of 4728	1928	Purchase Order 072020.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\Purchase Order 072020.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order 072020.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 496
2⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:4728

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1928-131-0x0000000075470000-0x0000000075A21000-memory.dmp

Filesize
5.7MB

Download
memory/4728-130-0x0000000000000000-mapping.dmp

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