remcos | c730cd6bf03eae343899fbde12a1b113f3a2b7833e7c4e7101cb609bd29df041

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
14/07/2026, 06:55

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General

Target
secured_stub.ps1
Size 2.3MB
Sample260714-hp9mpaaw21
SHA256 c730cd6bf03eae343899fbde12a1b113f3a2b7833e7c4e7101cb609bd29df041
MD5 213f06f8be791378ec619fcb17f7ff90
SHA1 93f30b486e8788e94cd1139031d673c036856f74
SHA512 a17ba97bcec0d6a23511fcf6a2fb5a438830c6ddc604d4922beaf6e6f0c7d0105a04bf30d4c0535288f0becf118bd20a6c5559279890398984e441b0a32551db
SSDEEP 24576:EVRYpnMG4peE5wGwdBO9cehwpBR5binOSGh8E950Je2jJm3BcBJ7dZ3Hr3QTgR1y:2WGvDKWwHbuOEEDcRdBMsDofp+W
TLSH
T138B533585D485ADB4E20F7FA762BBC48B6DC938BADC21303026C87B572E44B88B77C55
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

remotehost collection discovery execution remcos rat

Malware Config

Extracted

Family

remcos

Version

6.0.0 Pro

Botnet

RemoteHost

155.103.71.115:15670
155.103.71.115:15680

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-M9GNFN
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Detected Nirsoft tools 6 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/940-33-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/4372-42-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/940-41-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/4740-39-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/4372-34-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/940-44-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 2 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/4372-42-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/4372-34-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/940-33-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/940-41-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/940-44-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	aspnet_compiler.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key enumerated	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	aspnet_compiler.exe
Key queried	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	aspnet_compiler.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1280 set thread context of 4500	1280	powershell.exe	92
PID 4500 set thread context of 940	4500	aspnet_compiler.exe	94
PID 4500 set thread context of 4372	4500	aspnet_compiler.exe	96
PID 4500 set thread context of 4740	4500	aspnet_compiler.exe	97

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1280	powershell.exe

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	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

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

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 37 IoCs

pid	Process
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
940	aspnet_compiler.exe
940	aspnet_compiler.exe
4740	aspnet_compiler.exe
4740	aspnet_compiler.exe
940	aspnet_compiler.exe
940	aspnet_compiler.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe
1280	powershell.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4500	aspnet_compiler.exe
4500	aspnet_compiler.exe
4500	aspnet_compiler.exe
4500	aspnet_compiler.exe
4500	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	powershell.exe
Token: SeDebugPrivilege	4740	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1280 wrote to memory of 3256	1280	powershell.exe	87
PID 1280 wrote to memory of 1344	1280	powershell.exe	88
PID 1280 wrote to memory of 2060	1280	powershell.exe	89
PID 1280 wrote to memory of 4448	1280	powershell.exe	90
PID 1280 wrote to memory of 4112	1280	powershell.exe	91
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 1280 wrote to memory of 4500	1280	powershell.exe	92
PID 4500 wrote to memory of 2764	4500	aspnet_compiler.exe	93
PID 4500 wrote to memory of 940	4500	aspnet_compiler.exe	94
PID 4500 wrote to memory of 1652	4500	aspnet_compiler.exe	95
PID 4500 wrote to memory of 4372	4500	aspnet_compiler.exe	96
PID 4500 wrote to memory of 4740	4500	aspnet_compiler.exe	97
PID 1280 wrote to memory of 4152	1280	powershell.exe	107

outlook_office_path 1 IoCs

description	ioc	Process
Key queried	\REGISTRY\USER\S-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	aspnet_compiler.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\secured_stub.ps1
1⤵
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1280
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:3256
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:1344
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:2060
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:4448
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  PID:4112
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:4500
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe /stext "C:\Users\Admin\AppData\Local\Temp\glhgazjjvvnj"
    3⤵
    PID:2764
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe /stext "C:\Users\Admin\AppData\Local\Temp\glhgazjjvvnj"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:940
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe /stext "C:\Users\Admin\AppData\Local\Temp\rnnyastdjefwwja"
    3⤵
    PID:1652
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe /stext "C:\Users\Admin\AppData\Local\Temp\rnnyastdjefwwja"
    3⤵
    - Accesses Microsoft Outlook accounts
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - outlook_office_path
    PID:4372
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe /stext "C:\Users\Admin\AppData\Local\Temp\tharbkeefmxaypwghcc"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4740
- C:\Windows\system32\wermgr.exe
  "C:\Windows\system32\wermgr.exe" "-outproc" "0" "1280" "2396" "2316" "2400" "0" "0" "2404" "0" "0" "0" "0" "0"
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  PID:4152

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

__PSScriptPolicyTest_ejfphezs.1zu.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ejfphezs.1zu.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

glhgazjjvvnj

Path C:\Users\Admin\AppData\Local\Temp\glhgazjjvvnj
Size 4KB
SHA256 27cdfd26667ae13289c8c259b1bfd6ea53f7920b9bb437d314e0fdb38e0d0d7d
MD5 1ec0d0cfd1993f964c330250e0be1692
SHA1 8634203bea53bb6951669a4c15f7bb7785796d91
SHA512 b81b9179c65beaf7dd8771081783aff78e0ccc4800d435d73ac0b70f4121b3313c4e5db826183801097ca7d983d461a661ae10e08a26e390569f26e10b753f13
SSDEEP 48:wvvv0UYCxfvvcUYCxfdvv0UYCxBvv0UYCxakvv0UYC7:mvOCxvGCp1vOCPvOCbvOC7
TLSH
T146914A4712E90808F0B2BA46D97715B65BB378589CBC815C61ECA3D80BF3914DAE37D7
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/940-30-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/940-33-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/940-41-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/940-44-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/940-27-0x0000000000400000-0x0000000000478000-memory.dmp

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memory/1280-10-0x000001B34DD10000-0x000001B34DD28000-memory.dmp

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memory/1280-11-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-12-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-0-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-16-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-1-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-2-0x000001B333270000-0x000001B333292000-memory.dmp

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memory/1280-26-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-24-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/1280-40-0x000001B3332B0000-0x000001B3332C0000-memory.dmp

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memory/4372-29-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4372-34-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4372-42-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4372-32-0x0000000000400000-0x0000000000462000-memory.dmp

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memory/4500-15-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-46-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/4500-23-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-22-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-66-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-65-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-58-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-20-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-21-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-13-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-17-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-19-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-18-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-25-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-51-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-50-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/4500-49-0x0000000010000000-0x0000000010019000-memory.dmp

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memory/4500-14-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-52-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-54-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-53-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-55-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-56-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4500-57-0x0000000000400000-0x0000000000480000-memory.dmp

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memory/4740-35-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/4740-36-0x0000000000400000-0x0000000000424000-memory.dmp

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memory/4740-39-0x0000000000400000-0x0000000000424000-memory.dmp

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