remcos | be92ea3d3f4d480c7dda68d421bf4f718b7411c14da94f1077d9debc40f29b95

Analysis

max time kernel
299s
max time network
290s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/01/2025, 01:54

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General

Target

Quotation.exe
Size

990KB
MD5

ba0b6a9d6f493e8d718bbf796214900a
SHA1

0ac69c8653301edaca3beb1425b153689450a94e
SHA256

1efe29ca00c9e7c69c46dc8139204716a36b6074647f3ec4fb06e2ac6576d496
SHA512

ca401de6afbda29aec66bd0d03ab677790e3916b5b11c25a5326924c9a93df76dc82d909cc8bcf05db68e8753990ab4b8bb83016a6ef1cba43e0460113fd2195
SSDEEP

24576:2/J4LmzwMnIKb2RTysbOfUgZPLDxXWhFNA9V80Th6BqvRZe:MrDnIFReDfUgZPhVTM0pZ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

2.58.56.182:2404

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-GM05WY
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
2500	powershell.exe
2864	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1796 set thread context of 2688	1796	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
264	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1796	Quotation.exe
1796	Quotation.exe
2864	powershell.exe
2500	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1796	Quotation.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	2500	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2500	1796	Quotation.exe	31
PID 1796 wrote to memory of 2500	1796	Quotation.exe	31
PID 1796 wrote to memory of 2500	1796	Quotation.exe	31
PID 1796 wrote to memory of 2500	1796	Quotation.exe	31
PID 1796 wrote to memory of 2864	1796	Quotation.exe	33
PID 1796 wrote to memory of 2864	1796	Quotation.exe	33
PID 1796 wrote to memory of 2864	1796	Quotation.exe	33
PID 1796 wrote to memory of 2864	1796	Quotation.exe	33
PID 1796 wrote to memory of 264	1796	Quotation.exe	35
PID 1796 wrote to memory of 264	1796	Quotation.exe	35
PID 1796 wrote to memory of 264	1796	Quotation.exe	35
PID 1796 wrote to memory of 264	1796	Quotation.exe	35
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	Quotation.exe	37
PID 1796 wrote to memory of 2688	1796	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:1796
- 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:2500
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DUvXyihvzUp.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DUvXyihvzUp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE1D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:264
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2688

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\tmpFE1D.tmp

Filesize
1KB

MD5
d95542ad104e3cfc68e97cdeb42c295e

SHA1
2388ddc6736d9376837047a1115c2b0aeac6ad1e

SHA256
93c5975a961cdba12d4e41434f04fcbc469de722bfdf836e136e297d60c50af6

SHA512
9ca99770e9bafca463f7d126c6a11726a3434ff0abaffa5bcc432a5ebf75692d2b6ecc00e3803971cf1cfe72cfee7708a47ec3e0ea44aa0e5cd9ec1af5c7c916

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

Filesize
7KB

MD5
18e7c65741e5c6efac7197ad8a956c5b

SHA1
8dd70713f12dadd293044da92b981b607908ccf3

SHA256
f25b22e20c8738bb52789f2af8982615b2e375febd262fbb0ab11faa243737e1

SHA512
a7960942e34090ada1592143e1e4b0a7ed67ea4c909badc45b0c3dab237cd8e2d7a9f2a4f649c11b7ff7e3a2b23999c624c66b24cd308ad3e04da7b561f51bbc

Download Submit
memory/1796-36-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-1-0x00000000012D0000-0x00000000013CE000-memory.dmp

Filesize
1016KB

Download
memory/1796-2-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-3-0x0000000000670000-0x000000000068E000-memory.dmp

Filesize
120KB

Download
memory/1796-4-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/1796-5-0x0000000074D60000-0x000000007544E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-6-0x0000000008200000-0x00000000082C4000-memory.dmp

Filesize
784KB

Download
memory/1796-0-0x0000000074D6E000-0x0000000074D6F000-memory.dmp

Filesize
4KB

Download
memory/2688-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-55-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-59-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2688-60-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download