nanocore | 549d8f67e615fb4a17084e884f285947b9a4cd6c46bdd32d18bf44e71993fac4

System Information Discovery

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

Checks computer location settings 2 TTPs 2 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-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	images.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	GJqtqIavG.exe

Loads dropped DLL 6 IoCs

pid	Process
2140	images.exe
2140	images.exe
2140	images.exe
2140	images.exe
2140	images.exe
2140	images.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

Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	images.exe
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	images.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Images = "C:\\ProgramData\\images.exe"	ec76fddf34ff1519d986bce7efe9b0d1.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	GJqtqIavG.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

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4020 set thread context of 3056	4020	GJqtqIavG.exe	91

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
1380	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2292	powershell.exe
2292	powershell.exe
2372	powershell.exe
2372	powershell.exe
4020	GJqtqIavG.exe
3056	GJqtqIavG.exe
3056	GJqtqIavG.exe
3056	GJqtqIavG.exe
3056	GJqtqIavG.exe
3056	GJqtqIavG.exe
3056	GJqtqIavG.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3056	GJqtqIavG.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2292	powershell.exe
Token: SeDebugPrivilege	2372	powershell.exe
Token: SeDebugPrivilege	4020	GJqtqIavG.exe
Token: SeDebugPrivilege	3056	GJqtqIavG.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2140	images.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 3480 wrote to memory of 2292	3480	ec76fddf34ff1519d986bce7efe9b0d1.exe	79
PID 3480 wrote to memory of 2292	3480	ec76fddf34ff1519d986bce7efe9b0d1.exe	79
PID 3480 wrote to memory of 2292	3480	ec76fddf34ff1519d986bce7efe9b0d1.exe	79
PID 3480 wrote to memory of 2140	3480	ec76fddf34ff1519d986bce7efe9b0d1.exe	81
PID 3480 wrote to memory of 2140	3480	ec76fddf34ff1519d986bce7efe9b0d1.exe	81
PID 3480 wrote to memory of 2140	3480	ec76fddf34ff1519d986bce7efe9b0d1.exe	81
PID 2140 wrote to memory of 2372	2140	images.exe	82
PID 2140 wrote to memory of 2372	2140	images.exe	82
PID 2140 wrote to memory of 2372	2140	images.exe	82
PID 2140 wrote to memory of 1376	2140	images.exe	85
PID 2140 wrote to memory of 1376	2140	images.exe	85
PID 2140 wrote to memory of 1376	2140	images.exe	85
PID 2140 wrote to memory of 1376	2140	images.exe	85
PID 2140 wrote to memory of 1376	2140	images.exe	85
PID 2140 wrote to memory of 4020	2140	images.exe	86
PID 2140 wrote to memory of 4020	2140	images.exe	86
PID 2140 wrote to memory of 4020	2140	images.exe	86
PID 4020 wrote to memory of 1380	4020	GJqtqIavG.exe	89
PID 4020 wrote to memory of 1380	4020	GJqtqIavG.exe	89
PID 4020 wrote to memory of 1380	4020	GJqtqIavG.exe	89
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91
PID 4020 wrote to memory of 3056	4020	GJqtqIavG.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	images.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	images.exe

C:\Users\Admin\AppData\Local\Temp\ec76fddf34ff1519d986bce7efe9b0d1.exe
"C:\Users\Admin\AppData\Local\Temp\ec76fddf34ff1519d986bce7efe9b0d1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3480
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  powershell Add-MpPreference -ExclusionPath C:\
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2292
- C:\ProgramData\images.exe
  "C:\ProgramData\images.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Loads dropped DLL
  - Accesses Microsoft Outlook profiles
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:2140
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell Add-MpPreference -ExclusionPath C:\
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2372
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe"
    3⤵
    PID:1376
- - C:\Users\Admin\AppData\Roaming\GJqtqIavG.exe
    "C:\Users\Admin\AppData\Roaming\GJqtqIavG.exe"
    3⤵
    - Executes dropped EXE
    - 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:4020
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SOyiffdJkRr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp660D.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1380
  - - C:\Users\Admin\AppData\Roaming\GJqtqIavG.exe
      "{path}"
      4⤵
      Executes dropped EXE
      Checks whether UAC is enabled
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:3056

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery