remcos | 6704e5c8b340f0b22b506d04e5b61317fa2cccb7138c270a5c3c6c26646a96a4

Analysis

max time kernel
297s
max time network
287s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 11:23

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General

Target

Quotation.exe
Size

958KB
MD5

56bf061d982087efb8e2df5789da93db
SHA1

ad6a49a4dd091fc78f8d5f09d8b2b82b39ef3670
SHA256

3129730bf6dd9fe71cb30b1ed34ba03b44ab76a820fec8a83cf08c6acce09a56
SHA512

81cb03129a789907001eb4fd2c4c4a2db4a5ba742ac8f90750b127283b83c1747760a5c4220a39a2bcc59e570d2fe913e2ec7fb7662fe501703a4d5679750523
SSDEEP

24576:vzraQlDkENJ0aElSCubzae03sA3nD/uRYy:3aUoENJelSlae08A3nTuuy

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

185.241.208.87:2404

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-7DRXD9
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
Remcos family
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

pid	Process
2144	powershell.exe
2840	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 2904	2068	Quotation.exe	37

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	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.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

T1053.005

pid	Process
2864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2068	Quotation.exe
2068	Quotation.exe
2068	Quotation.exe
2068	Quotation.exe
2068	Quotation.exe
2068	Quotation.exe
2068	Quotation.exe
2840	powershell.exe
2144	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2068	Quotation.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	2144	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2144	2068	Quotation.exe	31
PID 2068 wrote to memory of 2144	2068	Quotation.exe	31
PID 2068 wrote to memory of 2144	2068	Quotation.exe	31
PID 2068 wrote to memory of 2144	2068	Quotation.exe	31
PID 2068 wrote to memory of 2840	2068	Quotation.exe	33
PID 2068 wrote to memory of 2840	2068	Quotation.exe	33
PID 2068 wrote to memory of 2840	2068	Quotation.exe	33
PID 2068 wrote to memory of 2840	2068	Quotation.exe	33
PID 2068 wrote to memory of 2864	2068	Quotation.exe	34
PID 2068 wrote to memory of 2864	2068	Quotation.exe	34
PID 2068 wrote to memory of 2864	2068	Quotation.exe	34
PID 2068 wrote to memory of 2864	2068	Quotation.exe	34
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37
PID 2068 wrote to memory of 2904	2068	Quotation.exe	37

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068
- 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\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2144
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dujreQplfpYHR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2840
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dujreQplfpYHR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3505.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2864
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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

C:\Users\Admin\AppData\Local\Temp\tmp3505.tmp

Filesize
1KB

MD5
17ae11ee421ceb48f17abfe8a7cfd1d0

SHA1
ee08502a99026f6497f9463b921f172185dc3638

SHA256
2ced8e33b1b9a90492d3fc7ee41333bbe0dd39932b3a1eba1f81ea6d10510e89

SHA512
6d768ca973a6ecca91a1c6339f91d7a81f0a14ddad4d948cf44f12101cc3deabb059b51ee48e20e6f4b5034acb2ca4d8ce06444fc9f4421cff8dad12020406ae

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\3YSIG5D8AFWVZZSZ5UJD.temp

Filesize
7KB

MD5
c754e352027ea9477721bff54be94791

SHA1
a5d884e709037960574fde7077f28a7815f6e690

SHA256
de58bf73720e498a52e7f2ebbb6c8271c01c99164cd29d8f19be53c2aa7e94f3

SHA512
1e1157922a8fffe855dab31723821a93529073c5590c513afa882a8ac51022761e4fe4f8395329dcca12a4efd2eec41fd391b03f3903b9750cd348f617fee07b

Download Submit
memory/2068-0-0x000000007494E000-0x000000007494F000-memory.dmp

Filesize
4KB

Download
memory/2068-1-0x0000000001290000-0x0000000001386000-memory.dmp

Filesize
984KB

Download
memory/2068-2-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/2068-3-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2068-4-0x000000007494E000-0x000000007494F000-memory.dmp

Filesize
4KB

Download
memory/2068-5-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/2068-6-0x0000000005B10000-0x0000000005BD4000-memory.dmp

Filesize
784KB

Download
memory/2068-36-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/2904-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2904-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2904-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download