agenttesla | feb91cde2c89cdf45cd078485f4f98683c11ec7d5a044a73968d31c2dcaa7e81

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4324 set thread context of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dw20.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c0059f77c623451c9b85287c735df32f.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

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

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
1180	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe
4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe
4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe
Token: SeRestorePrivilege	2416	dw20.exe
Token: SeBackupPrivilege	2416	dw20.exe
Token: SeBackupPrivilege	2416	dw20.exe
Token: SeBackupPrivilege	2416	dw20.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 1180	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	97
PID 4324 wrote to memory of 1180	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	97
PID 4324 wrote to memory of 1180	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	97
PID 4324 wrote to memory of 740	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	100
PID 4324 wrote to memory of 740	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	100
PID 4324 wrote to memory of 740	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	100
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 4324 wrote to memory of 1004	4324	JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe	101
PID 1004 wrote to memory of 2416	1004	RegSvcs.exe	102
PID 1004 wrote to memory of 2416	1004	RegSvcs.exe	102
PID 1004 wrote to memory of 2416	1004	RegSvcs.exe	102

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c0059f77c623451c9b85287c735df32f.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xwUnvexrqIZOUN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFAFA.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1180
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  PID:740
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1004
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 776
    3⤵
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Credential Access

Discovery

Query Registry

3

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery