remcos | f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8

Analysis

max time kernel
148s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/09/2026, 10:36

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General

Target
f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
Size 856KB
Sample260910-mndk3sbj3x
SHA256 f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8
MD5 1702ccc875e760d43dafb6b8b248d582
SHA1 669d4d0bd4bcf84044f4a04fbcaeb47b43f68de6
SHA512 015956b3d2004fdb3b1c435a2af7d6d1854a62a611a4f54f54e284d9ec31c6059c451ceecf3bdfccc43e502a4b4e513753616f6f8328e8eb498c94208e48a19a
SSDEEP 24576:SQZRQDfQqLujQnUPH05jGTlTPCNHBxs8:SigfZS2UPHlIdB
TLSH
T147150164120ADE02D4A65BF15970E7BA1BB99E84A910C3078EF97CFB7C7A7046C483D7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

special discovery execution remcos persistence rat

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Special

87.120.244.219:13131

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
vc
keylog_path
%AppData%
mouse_option
false
mutex
victoni_yotppiuatb
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Family: Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2848	powershell.exe
4944	powershell.exe
3228	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
3964	JsoZGtf.exe
5076	JsoZGtf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\JsoZGtf = "\"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe\" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command \"$j2axmj=[System.Environment]::TickCount;$selvgp=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$zrbuoi=3962;$oz5der=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXEpzb1pHdGYuZXhl')));$cf14dx=$env:COMPUTERNAME;& $selvgp -FilePath $oz5der\""	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3756 set thread context of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3964 set thread context of 5076	3964	JsoZGtf.exe	100

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 5 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	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JsoZGtf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
2848	powershell.exe
2848	powershell.exe
3228	powershell.exe
3228	powershell.exe
3228	powershell.exe
3964	JsoZGtf.exe
3964	JsoZGtf.exe
4944	powershell.exe
4944	powershell.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	3228	powershell.exe
Token: SeIncreaseQuotaPrivilege	2848	powershell.exe
Token: SeSecurityPrivilege	2848	powershell.exe
Token: SeTakeOwnershipPrivilege	2848	powershell.exe
Token: SeLoadDriverPrivilege	2848	powershell.exe
Token: SeSystemProfilePrivilege	2848	powershell.exe
Token: SeSystemtimePrivilege	2848	powershell.exe
Token: SeProfSingleProcessPrivilege	2848	powershell.exe
Token: SeIncBasePriorityPrivilege	2848	powershell.exe
Token: SeCreatePagefilePrivilege	2848	powershell.exe
Token: SeBackupPrivilege	2848	powershell.exe
Token: SeRestorePrivilege	2848	powershell.exe
Token: SeShutdownPrivilege	2848	powershell.exe
Token: SeDebugPrivilege	2848	powershell.exe
Token: SeSystemEnvironmentPrivilege	2848	powershell.exe
Token: SeRemoteShutdownPrivilege	2848	powershell.exe
Token: SeUndockPrivilege	2848	powershell.exe
Token: SeManageVolumePrivilege	2848	powershell.exe
Token: 33	2848	powershell.exe
Token: 34	2848	powershell.exe
Token: 35	2848	powershell.exe
Token: 36	2848	powershell.exe
Token: SeDebugPrivilege	3964	JsoZGtf.exe
Token: SeDebugPrivilege	4944	powershell.exe
Token: SeIncreaseQuotaPrivilege	4944	powershell.exe
Token: SeSecurityPrivilege	4944	powershell.exe
Token: SeTakeOwnershipPrivilege	4944	powershell.exe
Token: SeLoadDriverPrivilege	4944	powershell.exe
Token: SeSystemProfilePrivilege	4944	powershell.exe
Token: SeSystemtimePrivilege	4944	powershell.exe
Token: SeProfSingleProcessPrivilege	4944	powershell.exe
Token: SeIncBasePriorityPrivilege	4944	powershell.exe
Token: SeCreatePagefilePrivilege	4944	powershell.exe
Token: SeBackupPrivilege	4944	powershell.exe
Token: SeRestorePrivilege	4944	powershell.exe
Token: SeShutdownPrivilege	4944	powershell.exe
Token: SeDebugPrivilege	4944	powershell.exe
Token: SeSystemEnvironmentPrivilege	4944	powershell.exe
Token: SeRemoteShutdownPrivilege	4944	powershell.exe
Token: SeUndockPrivilege	4944	powershell.exe
Token: SeManageVolumePrivilege	4944	powershell.exe
Token: 33	4944	powershell.exe
Token: 34	4944	powershell.exe
Token: 35	4944	powershell.exe
Token: 36	4944	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5560	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3756 wrote to memory of 2848	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	90
PID 3756 wrote to memory of 2612	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	92
PID 3756 wrote to memory of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3756 wrote to memory of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3756 wrote to memory of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3756 wrote to memory of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3756 wrote to memory of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3756 wrote to memory of 5560	3756	f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe	93
PID 3228 wrote to memory of 3964	3228	powershell.exe	96
PID 3964 wrote to memory of 4944	3964	JsoZGtf.exe	98
PID 3964 wrote to memory of 5076	3964	JsoZGtf.exe	100
PID 3964 wrote to memory of 5076	3964	JsoZGtf.exe	100
PID 3964 wrote to memory of 5076	3964	JsoZGtf.exe	100
PID 3964 wrote to memory of 5076	3964	JsoZGtf.exe	100
PID 3964 wrote to memory of 5076	3964	JsoZGtf.exe	100
PID 3964 wrote to memory of 5076	3964	JsoZGtf.exe	100

C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
"C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3756
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2848
- C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
  "C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe"
  2⤵
  PID:2612
- C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe
  "C:\Users\Admin\AppData\Local\Temp\f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:5560

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -Command "$j2axmj=[System.Environment]::TickCount;$selvgp=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('U3RhcnQtUHJvY2Vzcw==')));$zrbuoi=3962;$oz5der=([System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('QzpcVXNlcnNcQWRtaW5cQXBwRGF0YVxSb2FtaW5nXEpzb1pHdGYuZXhl')));$cf14dx=$env:COMPUTERNAME;& $selvgp -FilePath $oz5der"
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3228
- C:\Users\Admin\AppData\Roaming\JsoZGtf.exe
  "C:\Users\Admin\AppData\Roaming\JsoZGtf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3964
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JsoZGtf.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4944
- - C:\Users\Admin\AppData\Roaming\JsoZGtf.exe
    "C:\Users\Admin\AppData\Roaming\JsoZGtf.exe"
    3⤵
    - Executes dropped EXE
    PID:5076

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 21KB
SHA256 a9134d1a167393bd2b4ae78df4cba64fecf0fad54e6f16bea96b05cef9dada60
MD5 c7698a084f121a2d2b1c8815b2dad5d6
SHA1 693c88aac8ead452d557bf42fc68a8d1ae0122e4
SHA512 e5c79fb0a0fcd5b7678134c493eb3ae181cf353d0e2d064e4d699a6641462990f1adaebd1b9c96a5fe6f7f9c98ba7909401a0a1d9fcdfb969764491f05089b1e
SSDEEP 384:/1eBaoT1iBG+GW14bY9lwzx/+g7+RMrr2PPZIAXr4B+BWIWtzKwYvYbhNaPMlRtm:dexZ6GNWiM9mzx/+G6JIAXrq+SV3bhNG
TLSH
T1EFA2B478213F6DC7D8D226B410D10AB7FBE4D489DAB611D4AF2BDA2F4C90EB64A60524
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_t5uj3xyf.q1z.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t5uj3xyf.q1z.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

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JsoZGtf.exe

Path C:\Users\Admin\AppData\Roaming\JsoZGtf.exe
Size 856KB
SHA256 f7b25aaca2e51acd2360cd1ef3e5392d225f082b8412417b0a6507363799dbb8
MD5 1702ccc875e760d43dafb6b8b248d582
SHA1 669d4d0bd4bcf84044f4a04fbcaeb47b43f68de6
SHA512 015956b3d2004fdb3b1c435a2af7d6d1854a62a611a4f54f54e284d9ec31c6059c451ceecf3bdfccc43e502a4b4e513753616f6f8328e8eb498c94208e48a19a
SSDEEP 24576:SQZRQDfQqLujQnUPH05jGTlTPCNHBxs8:SigfZS2UPHlIdB
TLSH
T147150164120ADE02D4A65BF15970E7BA1BB99E84A910C3078EF97CFB7C7A7046C483D7
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2848-38-0x00000000758C0000-0x000000007590C000-memory.dmp

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memory/2848-44-0x0000000007CD0000-0x0000000007CEA000-memory.dmp

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memory/2848-30-0x0000000006840000-0x000000000685E000-memory.dmp

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memory/2848-49-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/2848-46-0x0000000007F40000-0x0000000007FD6000-memory.dmp

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memory/2848-45-0x0000000007D40000-0x0000000007D4A000-memory.dmp

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memory/2848-43-0x0000000008310000-0x000000000898C000-memory.dmp

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memory/2848-28-0x00000000064D0000-0x000000000682B000-memory.dmp

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memory/2848-11-0x0000000003150000-0x0000000003186000-memory.dmp

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memory/2848-13-0x0000000005E10000-0x000000000645A000-memory.dmp

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memory/2848-12-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/2848-14-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/2848-42-0x0000000007B90000-0x0000000007C33000-memory.dmp

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memory/2848-15-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/2848-41-0x0000000007B60000-0x0000000007B80000-memory.dmp

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memory/2848-37-0x0000000007B20000-0x0000000007B56000-memory.dmp

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memory/2848-23-0x0000000005B80000-0x0000000005BA2000-memory.dmp

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memory/2848-25-0x0000000006460000-0x00000000064C6000-memory.dmp

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memory/2848-24-0x0000000005C20000-0x0000000005C86000-memory.dmp

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memory/2848-31-0x0000000006EA0000-0x0000000006EEC000-memory.dmp

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memory/3228-34-0x0000020AA2AA0000-0x0000020AA2AC2000-memory.dmp

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memory/3756-1-0x00000000004F0000-0x00000000005CC000-memory.dmp

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memory/3756-9-0x0000000007B70000-0x0000000007C0C000-memory.dmp

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memory/3756-6-0x00000000051D0000-0x00000000051F0000-memory.dmp

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memory/3756-29-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/3756-3-0x0000000004FB0000-0x0000000005042000-memory.dmp

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memory/3756-10-0x0000000007C10000-0x0000000007CC0000-memory.dmp

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memory/3756-0-0x0000000074FF2000-0x0000000074FF3000-memory.dmp

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memory/3756-2-0x0000000005660000-0x0000000005C1A000-memory.dmp

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memory/3756-4-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/3756-7-0x0000000074FF2000-0x0000000074FF3000-memory.dmp

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memory/3756-5-0x0000000005060000-0x000000000506A000-memory.dmp

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memory/3756-8-0x0000000074FE0000-0x000000007579C000-memory.dmp

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memory/4944-57-0x0000000005B00000-0x0000000005E5B000-memory.dmp

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memory/4944-59-0x0000000006280000-0x00000000062CC000-memory.dmp

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memory/4944-60-0x0000000071740000-0x000000007178C000-memory.dmp

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memory/4944-63-0x00000000070D0000-0x0000000007173000-memory.dmp

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memory/5560-20-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5560-18-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5560-16-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5560-19-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/5560-51-0x0000000000400000-0x0000000000417000-memory.dmp

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