remcos | 472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1

General

Target

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
Size

1.1MB
MD5

96a62642b79fcb88da4f854b2c46c64c
SHA1

1778d5bad1acb999458092745af2a6ac3fce39a3
SHA256

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1
SHA512

4643ede4706e904a6b6efd4c59d29c5a58c3aa3614de1d4d17e02d8ad33c4ecfd2bfe61de335e726c8ec085717afef77e9146eab4f71fd8a25758a2f3612d457
SSDEEP

24576:+8lmSlcXrLArMThOTAiVOpoUJ3jEDFXF9bo:9mSubfQrVS1xjcFDo

Score

10^/10

remcos remotehost execution persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.95.169.137:2404

Attributes

audio_folder
MicRecords
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
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-NG20QI
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exe

pid process

2088 powershell.exe
2960 powershell.exe
Executes dropped EXE 6 IoCs

Processes:

remcos.exeremcos.exeremcos.exeremcos.exeremcos.exeremcos.exe

pid process

2440 remcos.exe
2164 remcos.exe
2404 remcos.exe
2780 remcos.exe
1808 remcos.exe
1296 remcos.exe
Loads dropped DLL 1 IoCs

Processes:

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

pid process

2892 472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

pid	process
2088	powershell.exe
2960	powershell.exe

pid	process
2440	remcos.exe
2164	remcos.exe
2404	remcos.exe
2780	remcos.exe
1808	remcos.exe
1296	remcos.exe

pid	process
2892	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-NG20QI = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-NG20QI = "\"C:\\Users\\Admin\\AppData\\Roaming\\Remcos\\remcos.exe\""	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

description	pid	process	target process
PID 2924 set thread context of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

2376 schtasks.exe
2964 schtasks.exe

pid	process
2376	schtasks.exe
2964	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exepowershell.exeremcos.exepowershell.exe

pid	process
2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
2088	powershell.exe
2440	remcos.exe
2960	powershell.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe
2440	remcos.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exepowershell.exeremcos.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
Token: SeDebugPrivilege	2088	powershell.exe
Token: SeDebugPrivilege	2440	remcos.exe
Token: SeDebugPrivilege	2960	powershell.exe

Suspicious use of WriteProcessMemory 53 IoCs

Processes:

472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exeremcos.exe

description	pid	process	target process
PID 2924 wrote to memory of 2088	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	powershell.exe
PID 2924 wrote to memory of 2088	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	powershell.exe
PID 2924 wrote to memory of 2088	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	powershell.exe
PID 2924 wrote to memory of 2088	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	powershell.exe
PID 2924 wrote to memory of 2376	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	schtasks.exe
PID 2924 wrote to memory of 2376	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	schtasks.exe
PID 2924 wrote to memory of 2376	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	schtasks.exe
PID 2924 wrote to memory of 2376	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	schtasks.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2924 wrote to memory of 2892	2924	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
PID 2892 wrote to memory of 2440	2892	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	remcos.exe
PID 2892 wrote to memory of 2440	2892	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	remcos.exe
PID 2892 wrote to memory of 2440	2892	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	remcos.exe
PID 2892 wrote to memory of 2440	2892	472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe	remcos.exe
PID 2440 wrote to memory of 2960	2440	remcos.exe	powershell.exe
PID 2440 wrote to memory of 2960	2440	remcos.exe	powershell.exe
PID 2440 wrote to memory of 2960	2440	remcos.exe	powershell.exe
PID 2440 wrote to memory of 2960	2440	remcos.exe	powershell.exe
PID 2440 wrote to memory of 2964	2440	remcos.exe	schtasks.exe
PID 2440 wrote to memory of 2964	2440	remcos.exe	schtasks.exe
PID 2440 wrote to memory of 2964	2440	remcos.exe	schtasks.exe
PID 2440 wrote to memory of 2964	2440	remcos.exe	schtasks.exe
PID 2440 wrote to memory of 2164	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2164	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2164	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2164	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2404	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2404	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2404	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2404	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2780	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2780	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2780	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 2780	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1296	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1296	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1296	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1296	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1808	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1808	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1808	2440	remcos.exe	remcos.exe
PID 2440 wrote to memory of 1808	2440	remcos.exe	remcos.exe

C:\Users\Admin\AppData\Local\Temp\472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
"C:\Users\Admin\AppData\Local\Temp\472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GxGUIRTmI.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2088

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GxGUIRTmI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3BB9.tmp"
2⤵
- Creates scheduled task(s)
PID:2376

C:\Users\Admin\AppData\Local\Temp\472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe
"C:\Users\Admin\AppData\Local\Temp\472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1.exe"
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2892

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\GxGUIRTmI.exe"
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2960

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\GxGUIRTmI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6661.tmp"
4⤵
- Creates scheduled task(s)
PID:2964

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Executes dropped EXE
PID:2164

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Executes dropped EXE
PID:2404

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Executes dropped EXE
PID:2780

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Executes dropped EXE
PID:1296

C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe
"C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe"
4⤵
- Executes dropped EXE
PID:1808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3BB9.tmp

Filesize
1KB

MD5
036d30f8c9369efb76b3e046f09e4731

SHA1
400e0e7ee4254453664f9fdf4d6ca7c528449a80

SHA256
269742f527a81370549385947fe28ea87d55fd567c67ea3385ca5c16deffcb65

SHA512
3143672499fde987d72a8c45d21bd569917c509bc35fa2e87b77df6b2bc6ccfc3166259fa2f2f3bdb502f66884e3450917b6f50174fb808da54c806ccd5fdde9

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
7c3026763f729ee4354c0dda4802ab9c

SHA1
121317a03f9bb25fd48489b7a3143724e5407b01

SHA256
7103f5b38bd69156dcc8f827f6fe12bbff1d4a382f6f4afdad4282f14c55ddde

SHA512
8e868873ac2b3386cfe3f9243b6baf0c9df0d0747697f60d0873a7cbd4c58ee9e857d8136042a6395724fa4b1143e22462c19cf8760933746fada98b0f071585

Download Submit
C:\Users\Admin\AppData\Roaming\Remcos\remcos.exe

Filesize
1.1MB

MD5
96a62642b79fcb88da4f854b2c46c64c

SHA1
1778d5bad1acb999458092745af2a6ac3fce39a3

SHA256
472a8fbff35cdda49a870d372fa6da50defd8480348438e245f11aad954642d1

SHA512
4643ede4706e904a6b6efd4c59d29c5a58c3aa3614de1d4d17e02d8ad33c4ecfd2bfe61de335e726c8ec085717afef77e9146eab4f71fd8a25758a2f3612d457

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2440-40-0x00000000001F0000-0x0000000000314000-memory.dmp

Filesize
1.1MB

Download
memory/2892-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2892-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2924-0-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/2924-5-0x0000000005230000-0x00000000052F0000-memory.dmp

Filesize
768KB

Download
memory/2924-4-0x0000000000930000-0x0000000000940000-memory.dmp

Filesize
64KB

Download
memory/2924-36-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2924-3-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/2924-2-0x0000000000950000-0x000000000096A000-memory.dmp

Filesize
104KB

Download
memory/2924-1-0x0000000001060000-0x0000000001184000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads