61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883

System Information Discovery

Processes:

61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.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

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

Processes:

Official PO....exe

description pid process target process

PID 4796 set thread context of 4824 4796 Official PO....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
12	bot.whatismyipaddress.com

description	pid	process	target process
PID 4796 set thread context of 4824	4796	Official PO....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 behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Official PO....exe

pid process

4796 Official PO....exe

pid	process
4796	Official PO....exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Official PO....exedw20.exe

description	pid	process
Token: SeDebugPrivilege	4796	Official PO....exe
Token: SeRestorePrivilege	2284	dw20.exe
Token: SeBackupPrivilege	2284	dw20.exe
Token: SeBackupPrivilege	2284	dw20.exe
Token: SeBackupPrivilege	2284	dw20.exe
Token: SeBackupPrivilege	2284	dw20.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

Official PO....exe

pid process

4796 Official PO....exe
4796 Official PO....exe

pid	process
4796	Official PO....exe
4796	Official PO....exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exeOfficial PO....exe

description	pid	process	target process
PID 4904 wrote to memory of 4796	4904	61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exe	Official PO....exe
PID 4904 wrote to memory of 4796	4904	61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exe	Official PO....exe
PID 4904 wrote to memory of 4796	4904	61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exe	Official PO....exe
PID 4796 wrote to memory of 2284	4796	Official PO....exe	dw20.exe
PID 4796 wrote to memory of 2284	4796	Official PO....exe	dw20.exe
PID 4796 wrote to memory of 2284	4796	Official PO....exe	dw20.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe
PID 4796 wrote to memory of 4824	4796	Official PO....exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exe
"C:\Users\Admin\AppData\Local\Temp\61d4211283a55486a8d88d37bd4d6ca4743f0bb0ff306590d84675301c30e883.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4904

C:\Users\Admin\AppData\Local\Temp\Official PO....exe
"C:\Users\Admin\AppData\Local\Temp\Official PO....exe"
2⤵
- Disables RegEdit via registry modification
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4796

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 2280
3⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:2284

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:4824

Network

MITRE ATT&CK Enterprise 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