formbook | a3aa28d96664fc95cf9b74941b6c0015e5c3d18dd5efcee33e1dd1773aa3316d

System Information Discovery

Processes:

H2pjyhEAKkZfHdt.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	H2pjyhEAKkZfHdt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	H2pjyhEAKkZfHdt.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:

H2pjyhEAKkZfHdt.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	H2pjyhEAKkZfHdt.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

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:

H2pjyhEAKkZfHdt.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	H2pjyhEAKkZfHdt.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	H2pjyhEAKkZfHdt.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

H2pjyhEAKkZfHdt.exeMSBuild.exenetsh.exe

description	pid	process	target process
PID 2608 set thread context of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 5032 set thread context of 3140	5032	MSBuild.exe	Explorer.EXE
PID 3436 set thread context of 3140	3436	netsh.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

netsh.exe

description ioc process

File opened for modification C:\Program Files (x86)\Xcx4pg\servicesvx4h.exe netsh.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

3344 schtasks.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Xcx4pg\servicesvx4h.exe	netsh.exe

pid	process
3344	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

H2pjyhEAKkZfHdt.exeMSBuild.exenetsh.exe

pid	process
2608	H2pjyhEAKkZfHdt.exe
2608	H2pjyhEAKkZfHdt.exe
2608	H2pjyhEAKkZfHdt.exe
2608	H2pjyhEAKkZfHdt.exe
5032	MSBuild.exe
5032	MSBuild.exe
5032	MSBuild.exe
5032	MSBuild.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

MSBuild.exenetsh.exe

pid process

5032 MSBuild.exe
5032 MSBuild.exe
5032 MSBuild.exe
3436 netsh.exe
3436 netsh.exe
3436 netsh.exe

pid	process
5032	MSBuild.exe
5032	MSBuild.exe
5032	MSBuild.exe
3436	netsh.exe
3436	netsh.exe
3436	netsh.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

H2pjyhEAKkZfHdt.exeMSBuild.exenetsh.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2608	H2pjyhEAKkZfHdt.exe
Token: SeDebugPrivilege	5032	MSBuild.exe
Token: SeDebugPrivilege	3436	netsh.exe
Token: SeShutdownPrivilege	3140	Explorer.EXE
Token: SeCreatePagefilePrivilege	3140	Explorer.EXE
Token: SeShutdownPrivilege	3140	Explorer.EXE
Token: SeCreatePagefilePrivilege	3140	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

H2pjyhEAKkZfHdt.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 2608 wrote to memory of 3344	2608	H2pjyhEAKkZfHdt.exe	schtasks.exe
PID 2608 wrote to memory of 3344	2608	H2pjyhEAKkZfHdt.exe	schtasks.exe
PID 2608 wrote to memory of 3344	2608	H2pjyhEAKkZfHdt.exe	schtasks.exe
PID 2608 wrote to memory of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 2608 wrote to memory of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 2608 wrote to memory of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 2608 wrote to memory of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 2608 wrote to memory of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 2608 wrote to memory of 5032	2608	H2pjyhEAKkZfHdt.exe	MSBuild.exe
PID 3140 wrote to memory of 3436	3140	Explorer.EXE	netsh.exe
PID 3140 wrote to memory of 3436	3140	Explorer.EXE	netsh.exe
PID 3140 wrote to memory of 3436	3140	Explorer.EXE	netsh.exe
PID 3436 wrote to memory of 4132	3436	netsh.exe	cmd.exe
PID 3436 wrote to memory of 4132	3436	netsh.exe	cmd.exe
PID 3436 wrote to memory of 4132	3436	netsh.exe	cmd.exe
PID 3436 wrote to memory of 2904	3436	netsh.exe	cmd.exe
PID 3436 wrote to memory of 2904	3436	netsh.exe	cmd.exe
PID 3436 wrote to memory of 2904	3436	netsh.exe	cmd.exe
PID 3436 wrote to memory of 428	3436	netsh.exe	Firefox.exe
PID 3436 wrote to memory of 428	3436	netsh.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3140

C:\Users\Admin\AppData\Local\Temp\H2pjyhEAKkZfHdt.exe
"C:\Users\Admin\AppData\Local\Temp\H2pjyhEAKkZfHdt.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:2608

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IsxovY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBF1A.tmp"
3⤵
- Creates scheduled task(s)
PID:3344

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:5032

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Adds policy 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:3436

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe"
3⤵
PID:4132

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:2904

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:428

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