formbook | fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4

Modify Registry

description	ioc	Process
Key created	\Registry\User\S-1-5-21-457978338-2990298471-2379561640-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	NETSTAT.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\K4XD4X50GPG = "C:\\Program Files (x86)\\Windows Media Player\\wmplayer.exe"	NETSTAT.EXE

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2108 set thread context of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2064 set thread context of 1368	2064	wmplayer.exe	21
PID 2064 set thread context of 1368	2064	wmplayer.exe	21
PID 1764 set thread context of 1368	1764	NETSTAT.EXE	21

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1764	NETSTAT.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\Registry\User\S-1-5-21-457978338-2990298471-2379561640-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2064	wmplayer.exe
2064	wmplayer.exe
2064	wmplayer.exe
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
2064	wmplayer.exe
2064	wmplayer.exe
2064	wmplayer.exe
2064	wmplayer.exe
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE
1764	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe
Token: SeDebugPrivilege	2064	wmplayer.exe
Token: SeDebugPrivilege	1764	NETSTAT.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 2108 wrote to memory of 2064	2108	fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe	31
PID 1368 wrote to memory of 1764	1368	Explorer.EXE	34
PID 1368 wrote to memory of 1764	1368	Explorer.EXE	34
PID 1368 wrote to memory of 1764	1368	Explorer.EXE	34
PID 1368 wrote to memory of 1764	1368	Explorer.EXE	34
PID 1764 wrote to memory of 2804	1764	NETSTAT.EXE	35
PID 1764 wrote to memory of 2804	1764	NETSTAT.EXE	35
PID 1764 wrote to memory of 2804	1764	NETSTAT.EXE	35
PID 1764 wrote to memory of 2804	1764	NETSTAT.EXE	35
PID 1764 wrote to memory of 2804	1764	NETSTAT.EXE	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1368
- C:\Users\Admin\AppData\Local\Temp\fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe
  "C:\Users\Admin\AppData\Local\Temp\fcf632af143e88dfba5e9256d0fb238eb314b0d20e63141cb659ed7ad001cbb4.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2108
- - C:\Program Files (x86)\Windows Media Player\wmplayer.exe
    "C:\Program Files (x86)\Windows Media Player\wmplayer.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2064
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1680
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

3

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery