amadey | 004d58bf34da683aacf652abc4bf89317d4f0333b0aa0f134b257c4cc95fbcfa

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	a4326138.exe

Modifies Windows Defender Real-time Protection settings 3 TTPs 6 IoCs

defense_evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	a4326138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	a4326138.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	a4326138.exe

Modifies Windows Defender TamperProtection settings 3 TTPs 1 IoCs

evasion trojan

Modify Registry

Windows Service

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	a4326138.exe

Modifies Windows Defender notification settings 3 TTPs 2 IoCs

defense_evasion trojan

Windows Service

Modify Registry

Disable or Modify Tools

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications\DisableNotifications = "1"	a4326138.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center\Notifications	a4326138.exe

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

RedLine payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0007000000023cb0-43.dat	family_redline
behavioral1/memory/4232-45-0x0000000000D10000-0x0000000000D40000-memory.dmp	family_redline

Redline family
redline
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	b2142649.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	pdates.exe

Executes dropped EXE 9 IoCs

pid	Process
4900	v6240371.exe
2024	v7144898.exe
4120	a4326138.exe
4020	b2142649.exe
3676	pdates.exe
808	c3938692.exe
4232	d3273119.exe
1416	pdates.exe
1432	pdates.exe

Windows security modification 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	a4326138.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

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\\\""	tvMvqaTxQ3VVhww4U2r5p1b5.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\\\""	v6240371.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\\\""	v7144898.exe

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 15 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	v6240371.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3273119.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tvMvqaTxQ3VVhww4U2r5p1b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	v7144898.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2142649.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pdates.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3938692.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cacls.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c3938692.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c3938692.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c3938692.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
1228	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4120	a4326138.exe
4120	a4326138.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4120	a4326138.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4020	b2142649.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 4900	3288	tvMvqaTxQ3VVhww4U2r5p1b5.exe	82
PID 3288 wrote to memory of 4900	3288	tvMvqaTxQ3VVhww4U2r5p1b5.exe	82
PID 3288 wrote to memory of 4900	3288	tvMvqaTxQ3VVhww4U2r5p1b5.exe	82
PID 4900 wrote to memory of 2024	4900	v6240371.exe	83
PID 4900 wrote to memory of 2024	4900	v6240371.exe	83
PID 4900 wrote to memory of 2024	4900	v6240371.exe	83
PID 2024 wrote to memory of 4120	2024	v7144898.exe	84
PID 2024 wrote to memory of 4120	2024	v7144898.exe	84
PID 2024 wrote to memory of 4020	2024	v7144898.exe	87
PID 2024 wrote to memory of 4020	2024	v7144898.exe	87
PID 2024 wrote to memory of 4020	2024	v7144898.exe	87
PID 4020 wrote to memory of 3676	4020	b2142649.exe	88
PID 4020 wrote to memory of 3676	4020	b2142649.exe	88
PID 4020 wrote to memory of 3676	4020	b2142649.exe	88
PID 4900 wrote to memory of 808	4900	v6240371.exe	89
PID 4900 wrote to memory of 808	4900	v6240371.exe	89
PID 4900 wrote to memory of 808	4900	v6240371.exe	89
PID 3676 wrote to memory of 1228	3676	pdates.exe	90
PID 3676 wrote to memory of 1228	3676	pdates.exe	90
PID 3676 wrote to memory of 1228	3676	pdates.exe	90
PID 3676 wrote to memory of 2608	3676	pdates.exe	92
PID 3676 wrote to memory of 2608	3676	pdates.exe	92
PID 3676 wrote to memory of 2608	3676	pdates.exe	92
PID 2608 wrote to memory of 1828	2608	cmd.exe	94
PID 2608 wrote to memory of 1828	2608	cmd.exe	94
PID 2608 wrote to memory of 1828	2608	cmd.exe	94
PID 2608 wrote to memory of 3744	2608	cmd.exe	95
PID 2608 wrote to memory of 3744	2608	cmd.exe	95
PID 2608 wrote to memory of 3744	2608	cmd.exe	95
PID 2608 wrote to memory of 1960	2608	cmd.exe	96
PID 2608 wrote to memory of 1960	2608	cmd.exe	96
PID 2608 wrote to memory of 1960	2608	cmd.exe	96
PID 2608 wrote to memory of 1320	2608	cmd.exe	97
PID 2608 wrote to memory of 1320	2608	cmd.exe	97
PID 2608 wrote to memory of 1320	2608	cmd.exe	97
PID 2608 wrote to memory of 3296	2608	cmd.exe	98
PID 2608 wrote to memory of 3296	2608	cmd.exe	98
PID 2608 wrote to memory of 3296	2608	cmd.exe	98
PID 2608 wrote to memory of 2144	2608	cmd.exe	99
PID 2608 wrote to memory of 2144	2608	cmd.exe	99
PID 2608 wrote to memory of 2144	2608	cmd.exe	99
PID 3288 wrote to memory of 4232	3288	tvMvqaTxQ3VVhww4U2r5p1b5.exe	101
PID 3288 wrote to memory of 4232	3288	tvMvqaTxQ3VVhww4U2r5p1b5.exe	101
PID 3288 wrote to memory of 4232	3288	tvMvqaTxQ3VVhww4U2r5p1b5.exe	101

C:\Users\Admin\AppData\Local\Temp\tvMvqaTxQ3VVhww4U2r5p1b5.exe
"C:\Users\Admin\AppData\Local\Temp\tvMvqaTxQ3VVhww4U2r5p1b5.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3288
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v6240371.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\v6240371.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4900
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v7144898.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\v7144898.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2024
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\a4326138.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\a4326138.exe
      4⤵
      Modifies Windows Defender DisableAntiSpyware settings
      Modifies Windows Defender Real-time Protection settings
      Modifies Windows Defender TamperProtection settings
      Modifies Windows Defender notification settings
      Executes dropped EXE
      Windows security modification
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4120
  - - C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\b2142649.exe
      C:\Users\Admin\AppData\Local\Temp\IXP002.TMP\b2142649.exe
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of FindShellTrayWindow
      Suspicious use of WriteProcessMemory
      PID:4020
    - - C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
        
        "C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe"
        5⤵
        Checks computer location settings
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:3676
      - C:\Windows\SysWOW64\schtasks.exe
        
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN pdates.exe /TR "C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe" /F
        6⤵
        System Location Discovery: System Language Discovery
        Scheduled Task/Job: Scheduled Task
        
        PID:1228
      - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /k echo Y|CACLS "pdates.exe" /P "Admin:N"&&CACLS "pdates.exe" /P "Admin:R" /E&&echo Y|CACLS "..\925e7e99c5" /P "Admin:N"&&CACLS "..\925e7e99c5" /P "Admin:R" /E&&Exit
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2608
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:1828
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "pdates.exe" /P "Admin:N"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:3744
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "pdates.exe" /P "Admin:R" /E
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:1960
        
        C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo Y"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:1320
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\925e7e99c5" /P "Admin:N"
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:3296
        
        C:\Windows\SysWOW64\cacls.exe
        
        CACLS "..\925e7e99c5" /P "Admin:R" /E
        7⤵
        System Location Discovery: System Language Discovery
        
        PID:2144
- - C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\c3938692.exe
    C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\c3938692.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks SCSI registry key(s)
    PID:808
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\d3273119.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\d3273119.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4232

C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
1⤵
- Executes dropped EXE
PID:1416

C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
C:\Users\Admin\AppData\Local\Temp\925e7e99c5\pdates.exe
1⤵
- Executes dropped EXE
PID:1432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry