amadey | 1964f0b7aa386a7ada0f16093e9b161b28995479aa58a338e7de908c4cd4572a

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

Processes:

a8959177.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	a8959177.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	a8959177.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	a8959177.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	a8959177.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	a8959177.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection	a8959177.exe

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

Processes:

b5654370.exesaves.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\Control Panel\International\Geo\Nation	b5654370.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4078585466-1563564224-3678410669-1000\Control Panel\International\Geo\Nation	saves.exe

Executes dropped EXE 10 IoCs

Processes:

v8902643.exev2278047.exev2156302.exea8959177.exeb5654370.exesaves.exec3299963.exed1069802.exesaves.exesaves.exe

pid	process
1260	v8902643.exe
1792	v2278047.exe
2712	v2156302.exe
5004	a8959177.exe
2324	b5654370.exe
2284	saves.exe
4328	c3299963.exe
3304	d1069802.exe
3260	saves.exe
2512	saves.exe

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

4876 rundll32.exe

pid	process
4876	rundll32.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

Processes:

a8959177.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features	a8959177.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	a8959177.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

Processes:

011067ff14ae5cd42d4272f39c77ca53.exev8902643.exev2278047.exev2156302.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	011067ff14ae5cd42d4272f39c77ca53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup1 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP001.TMP\\\""	v8902643.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup2 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP002.TMP\\\""	v2278047.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup3 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP003.TMP\\\""	v2156302.exe

Drops file in System32 directory 1 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{1C769C55-FB6C-4FEC-8722-500A0A5B44B7}.catalogItem	svchost.exe

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

System Information Discovery
T1082

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

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

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/Job
T1053

Processes:

schtasks.exe

pid process

1664 schtasks.exe

pid	process
1664	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

a8959177.exe

pid process

5004 a8959177.exe
5004 a8959177.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a8959177.exe

description pid process

Token: SeDebugPrivilege 5004 a8959177.exe

pid	process
5004	a8959177.exe
5004	a8959177.exe

description	pid	process
Token: SeDebugPrivilege	5004	a8959177.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

011067ff14ae5cd42d4272f39c77ca53.exev8902643.exev2278047.exev2156302.exeb5654370.exesaves.execmd.exe

description	pid	process	target process
PID 640 wrote to memory of 1260	640	011067ff14ae5cd42d4272f39c77ca53.exe	v8902643.exe
PID 640 wrote to memory of 1260	640	011067ff14ae5cd42d4272f39c77ca53.exe	v8902643.exe
PID 640 wrote to memory of 1260	640	011067ff14ae5cd42d4272f39c77ca53.exe	v8902643.exe
PID 1260 wrote to memory of 1792	1260	v8902643.exe	v2278047.exe
PID 1260 wrote to memory of 1792	1260	v8902643.exe	v2278047.exe
PID 1260 wrote to memory of 1792	1260	v8902643.exe	v2278047.exe
PID 1792 wrote to memory of 2712	1792	v2278047.exe	v2156302.exe
PID 1792 wrote to memory of 2712	1792	v2278047.exe	v2156302.exe
PID 1792 wrote to memory of 2712	1792	v2278047.exe	v2156302.exe
PID 2712 wrote to memory of 5004	2712	v2156302.exe	a8959177.exe
PID 2712 wrote to memory of 5004	2712	v2156302.exe	a8959177.exe
PID 2712 wrote to memory of 5004	2712	v2156302.exe	a8959177.exe
PID 2712 wrote to memory of 2324	2712	v2156302.exe	b5654370.exe
PID 2712 wrote to memory of 2324	2712	v2156302.exe	b5654370.exe
PID 2712 wrote to memory of 2324	2712	v2156302.exe	b5654370.exe
PID 2324 wrote to memory of 2284	2324	b5654370.exe	saves.exe
PID 2324 wrote to memory of 2284	2324	b5654370.exe	saves.exe
PID 2324 wrote to memory of 2284	2324	b5654370.exe	saves.exe
PID 1792 wrote to memory of 4328	1792	v2278047.exe	c3299963.exe
PID 1792 wrote to memory of 4328	1792	v2278047.exe	c3299963.exe
PID 1792 wrote to memory of 4328	1792	v2278047.exe	c3299963.exe
PID 2284 wrote to memory of 1664	2284	saves.exe	schtasks.exe
PID 2284 wrote to memory of 1664	2284	saves.exe	schtasks.exe
PID 2284 wrote to memory of 1664	2284	saves.exe	schtasks.exe
PID 2284 wrote to memory of 876	2284	saves.exe	cmd.exe
PID 2284 wrote to memory of 876	2284	saves.exe	cmd.exe
PID 2284 wrote to memory of 876	2284	saves.exe	cmd.exe
PID 876 wrote to memory of 3704	876	cmd.exe	cmd.exe
PID 876 wrote to memory of 3704	876	cmd.exe	cmd.exe
PID 876 wrote to memory of 3704	876	cmd.exe	cmd.exe
PID 876 wrote to memory of 4436	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 4436	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 4436	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 2984	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 2984	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 2984	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 3372	876	cmd.exe	cmd.exe
PID 876 wrote to memory of 3372	876	cmd.exe	cmd.exe
PID 876 wrote to memory of 3372	876	cmd.exe	cmd.exe
PID 876 wrote to memory of 880	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 880	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 880	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 4424	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 4424	876	cmd.exe	cacls.exe
PID 876 wrote to memory of 4424	876	cmd.exe	cacls.exe
PID 1260 wrote to memory of 3304	1260	v8902643.exe	d1069802.exe
PID 1260 wrote to memory of 3304	1260	v8902643.exe	d1069802.exe
PID 1260 wrote to memory of 3304	1260	v8902643.exe	d1069802.exe
PID 2284 wrote to memory of 4876	2284	saves.exe	rundll32.exe
PID 2284 wrote to memory of 4876	2284	saves.exe	rundll32.exe
PID 2284 wrote to memory of 4876	2284	saves.exe	rundll32.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\011067ff14ae5cd42d4272f39c77ca53.exe
"C:\Users\Admin\AppData\Local\Temp\011067ff14ae5cd42d4272f39c77ca53.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:640

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v8902643.exe
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v8902643.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v2278047.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v2278047.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1792

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\v2156302.exe
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\v2156302.exe
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2712

C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\a8959177.exe
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\a8959177.exe
5⤵
- Modifies Windows Defender Real-time Protection settings
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5004

C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\b5654370.exe
C:\Users\Admin\AppData\Local\Temp\IXP003.TMP\b5654370.exe
5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2324

C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
"C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe"
6⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2284

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN saves.exe /TR "C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe" /F
7⤵
- Creates scheduled task(s)
PID:1664

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k echo Y|CACLS "saves.exe" /P "Admin:N"&&CACLS "saves.exe" /P "Admin:R" /E&&echo Y|CACLS "..\b40d11255d" /P "Admin:N"&&CACLS "..\b40d11255d" /P "Admin:R" /E&&Exit
7⤵
- Suspicious use of WriteProcessMemory
PID:876

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo Y"
8⤵
PID:3704

C:\Windows\SysWOW64\cacls.exe
CACLS "saves.exe" /P "Admin:N"
8⤵
PID:4436

C:\Windows\SysWOW64\cacls.exe
CACLS "saves.exe" /P "Admin:R" /E
8⤵
PID:2984

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /S /D /c" echo Y"
8⤵
PID:3372

C:\Windows\SysWOW64\cacls.exe
CACLS "..\b40d11255d" /P "Admin:N"
8⤵
PID:880

C:\Windows\SysWOW64\cacls.exe
CACLS "..\b40d11255d" /P "Admin:R" /E
8⤵
PID:4424

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
7⤵
- Loads dropped DLL
PID:4876

C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\c3299963.exe
C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\c3299963.exe
4⤵
- Executes dropped EXE
PID:4328

C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\d1069802.exe
C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\d1069802.exe
3⤵
- Executes dropped EXE
PID:3304

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:4744

C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
1⤵
- Executes dropped EXE
PID:3260

C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
C:\Users\Admin\AppData\Local\Temp\b40d11255d\saves.exe
1⤵
- Executes dropped EXE
PID:2512

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Credential Access

Discovery

Query Registry

System Information Discovery