masslogger | 456f0fa423d312c6eaa1114f382a0e187e229f21e6a9bbd0ea45de0b2c6db2bd

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Hp4 81921.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Hp4 81921.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\International\Geo\Nation	Hp4 81921.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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	api.ipify.org

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Hp4 81921.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	Hp4 81921.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3212 set thread context of 3460	3212	Hp4 81921.exe	88

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

pid	Process
3764	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3460	Hp4 81921.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3324	powershell.exe
3324	powershell.exe
3792	powershell.exe
3212	Hp4 81921.exe
3324	powershell.exe
3792	powershell.exe
2184	powershell.exe
3792	powershell.exe
2184	powershell.exe
2184	powershell.exe
3460	Hp4 81921.exe
3460	Hp4 81921.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3324	powershell.exe
Token: SeDebugPrivilege	3792	powershell.exe
Token: SeDebugPrivilege	3212	Hp4 81921.exe
Token: SeDebugPrivilege	2184	powershell.exe
Token: SeDebugPrivilege	3460	Hp4 81921.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3460	Hp4 81921.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3212 wrote to memory of 3324	3212	Hp4 81921.exe	79
PID 3212 wrote to memory of 3324	3212	Hp4 81921.exe	79
PID 3212 wrote to memory of 3324	3212	Hp4 81921.exe	79
PID 3212 wrote to memory of 3792	3212	Hp4 81921.exe	82
PID 3212 wrote to memory of 3792	3212	Hp4 81921.exe	82
PID 3212 wrote to memory of 3792	3212	Hp4 81921.exe	82
PID 3212 wrote to memory of 3764	3212	Hp4 81921.exe	85
PID 3212 wrote to memory of 3764	3212	Hp4 81921.exe	85
PID 3212 wrote to memory of 3764	3212	Hp4 81921.exe	85
PID 3212 wrote to memory of 2184	3212	Hp4 81921.exe	86
PID 3212 wrote to memory of 2184	3212	Hp4 81921.exe	86
PID 3212 wrote to memory of 2184	3212	Hp4 81921.exe	86
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88
PID 3212 wrote to memory of 3460	3212	Hp4 81921.exe	88

C:\Users\Admin\AppData\Local\Temp\Hp4 81921.exe
"C:\Users\Admin\AppData\Local\Temp\Hp4 81921.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3212
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Hp4 81921.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3324
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AlJKlG.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3792
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AlJKlG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp20D7.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:3764
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AlJKlG.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2184
- C:\Users\Admin\AppData\Local\Temp\Hp4 81921.exe
  "C:\Users\Admin\AppData\Local\Temp\Hp4 81921.exe"
  2⤵
  - Checks computer location settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery