4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88

System Information Discovery

Processes:

4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

30 bot.whatismyipaddress.com
Suspicious use of SetThreadContext 1 IoCs

Processes:

PO 2.exe

description pid process target process

PID 4632 set thread context of 5092 4632 PO 2.exe vbc.exe
Drops file in Windows directory 1 IoCs

Processes:

dw20.exe

description ioc process

File created C:\Windows\AppCompat\Programs\Amcache.hve.tmp dw20.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

flow	ioc
30	bot.whatismyipaddress.com

description	pid	process	target process
PID 4632 set thread context of 5092	4632	PO 2.exe	vbc.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

System Information Discovery

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

System Information Discovery

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 6 IoCs

Processes:

PO 2.exedw20.exe

description	pid	process
Token: SeDebugPrivilege	4632	PO 2.exe
Token: SeRestorePrivilege	4236	dw20.exe
Token: SeBackupPrivilege	4236	dw20.exe
Token: SeBackupPrivilege	4236	dw20.exe
Token: SeBackupPrivilege	4236	dw20.exe
Token: SeBackupPrivilege	4236	dw20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

PO 2.exe

pid process

4632 PO 2.exe

pid	process
4632	PO 2.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exePO 2.exe

description	pid	process	target process
PID 3444 wrote to memory of 4632	3444	4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe	PO 2.exe
PID 3444 wrote to memory of 4632	3444	4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe	PO 2.exe
PID 3444 wrote to memory of 4632	3444	4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe	PO 2.exe
PID 4632 wrote to memory of 4236	4632	PO 2.exe	dw20.exe
PID 4632 wrote to memory of 4236	4632	PO 2.exe	dw20.exe
PID 4632 wrote to memory of 4236	4632	PO 2.exe	dw20.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe
PID 4632 wrote to memory of 5092	4632	PO 2.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe
"C:\Users\Admin\AppData\Local\Temp\4a214ca2c8d321edeab9493c5947d7e0c7ba6575abbb45fc719aff42640cda88.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3444

C:\Users\Admin\AppData\Local\Temp\PO 2.exe
"C:\Users\Admin\AppData\Local\Temp\PO 2.exe"
2⤵
- Disables RegEdit via registry modification
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4632

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 2288
3⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:4236

C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\logff.txt
3⤵
PID:5092

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

T1064

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

3

System Information Discovery

4

Lateral Movement

Collection

Data from Local System