formbook | b342d170c6371e2d496b49b114e9c5834038d7292e63026f864e514378fb72b4

System Information Discovery

Processes:

TT copy 2094782.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	TT copy 2094782.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	TT copy 2094782.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

TT copy 2094782.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	TT copy 2094782.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MF6HZLUHQZ = "C:\\Program Files (x86)\\Owp5th\\msnb5.exe"	mstsc.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

TT copy 2094782.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	TT copy 2094782.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	TT copy 2094782.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

TT copy 2094782.exeTT copy 2094782.exemstsc.exe

description	pid	process	target process
PID 2400 set thread context of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 1580 set thread context of 664	1580	TT copy 2094782.exe	Explorer.EXE
PID 1180 set thread context of 664	1180	mstsc.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

mstsc.exe

description ioc process

File opened for modification C:\Program Files (x86)\Owp5th\msnb5.exe mstsc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4496 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Owp5th\msnb5.exe	mstsc.exe

pid	process
4496	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 55 IoCs

Processes:

TT copy 2094782.exeTT copy 2094782.exemstsc.exe

pid	process
2400	TT copy 2094782.exe
1580	TT copy 2094782.exe
1580	TT copy 2094782.exe
1580	TT copy 2094782.exe
1580	TT copy 2094782.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

664 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

TT copy 2094782.exemstsc.exe

pid process

1580 TT copy 2094782.exe
1580 TT copy 2094782.exe
1580 TT copy 2094782.exe
1180 mstsc.exe
1180 mstsc.exe
1180 mstsc.exe
1180 mstsc.exe

pid	process
664	Explorer.EXE

pid	process
1580	TT copy 2094782.exe
1580	TT copy 2094782.exe
1580	TT copy 2094782.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe
1180	mstsc.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

TT copy 2094782.exeTT copy 2094782.exemstsc.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2400	TT copy 2094782.exe
Token: SeDebugPrivilege	1580	TT copy 2094782.exe
Token: SeDebugPrivilege	1180	mstsc.exe
Token: SeShutdownPrivilege	664	Explorer.EXE
Token: SeCreatePagefilePrivilege	664	Explorer.EXE
Token: SeShutdownPrivilege	664	Explorer.EXE
Token: SeCreatePagefilePrivilege	664	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

TT copy 2094782.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 2400 wrote to memory of 4496	2400	TT copy 2094782.exe	schtasks.exe
PID 2400 wrote to memory of 4496	2400	TT copy 2094782.exe	schtasks.exe
PID 2400 wrote to memory of 4496	2400	TT copy 2094782.exe	schtasks.exe
PID 2400 wrote to memory of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 2400 wrote to memory of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 2400 wrote to memory of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 2400 wrote to memory of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 2400 wrote to memory of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 2400 wrote to memory of 1580	2400	TT copy 2094782.exe	TT copy 2094782.exe
PID 664 wrote to memory of 1180	664	Explorer.EXE	mstsc.exe
PID 664 wrote to memory of 1180	664	Explorer.EXE	mstsc.exe
PID 664 wrote to memory of 1180	664	Explorer.EXE	mstsc.exe
PID 1180 wrote to memory of 752	1180	mstsc.exe	cmd.exe
PID 1180 wrote to memory of 752	1180	mstsc.exe	cmd.exe
PID 1180 wrote to memory of 752	1180	mstsc.exe	cmd.exe
PID 1180 wrote to memory of 684	1180	mstsc.exe	cmd.exe
PID 1180 wrote to memory of 684	1180	mstsc.exe	cmd.exe
PID 1180 wrote to memory of 684	1180	mstsc.exe	cmd.exe
PID 1180 wrote to memory of 4276	1180	mstsc.exe	Firefox.exe
PID 1180 wrote to memory of 4276	1180	mstsc.exe	Firefox.exe
PID 1180 wrote to memory of 4276	1180	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:664

C:\Users\Admin\AppData\Local\Temp\TT copy 2094782.exe
"C:\Users\Admin\AppData\Local\Temp\TT copy 2094782.exe"
2⤵
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2400

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AnLKhBlJfQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBA8B.tmp"
3⤵
- Creates scheduled task(s)
PID:4496

C:\Users\Admin\AppData\Local\Temp\TT copy 2094782.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1580

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1180

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\TT copy 2094782.exe"
3⤵
PID:752

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:684

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4276

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Modify Registry

2

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

Peripheral Device Discovery

T1120

Lateral Movement

Collection

Data from Local System