remcos | 062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21/05/2024, 01:00

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General

Target
062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
Size 975KB
Sample240521-bc6xpsda22
SHA256 062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5
MD5 6bc3017aa0b572802c23e8fad4c7a612
SHA1 262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1
SHA512 86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354
SSDEEP 24576:8LZq8lDaXLp5C7UMUoloIG8h3IP8trNwNoZ:8oUDaXLnC7Ia68FCO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

46.183.223.69:13452

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
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-UJROWN
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

Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 33 IoCs

resource	yara_rule
behavioral2/memory/2268-12-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2268-13-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2268-15-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2268-16-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/2268-29-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-36-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-40-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-41-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-37-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-43-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-44-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-45-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-47-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-50-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-51-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-52-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-54-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-58-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-61-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-62-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-63-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-66-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-69-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-72-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-73-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-74-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-77-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-80-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-83-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-84-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-85-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-88-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM
behavioral2/memory/3140-91-0x0000000000400000-0x0000000000482000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_UACBypass_CMSTPCOM

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe

Executes dropped EXE 3 IoCs

pid	Process
1128	remcos.exe
3188	remcos.exe
3140	remcos.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-UJROWN = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 900 set thread context of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 1128 set thread context of 3140	1128	remcos.exe	100

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
1128	remcos.exe
1128	remcos.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
Token: SeDebugPrivilege	1128	remcos.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3140	remcos.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 4948	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	94
PID 900 wrote to memory of 4948	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	94
PID 900 wrote to memory of 4948	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	94
PID 900 wrote to memory of 4064	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	95
PID 900 wrote to memory of 4064	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	95
PID 900 wrote to memory of 4064	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	95
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 900 wrote to memory of 2268	900	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	96
PID 2268 wrote to memory of 1128	2268	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	97
PID 2268 wrote to memory of 1128	2268	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	97
PID 2268 wrote to memory of 1128	2268	062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe	97
PID 1128 wrote to memory of 3188	1128	remcos.exe	99
PID 1128 wrote to memory of 3188	1128	remcos.exe	99
PID 1128 wrote to memory of 3188	1128	remcos.exe	99
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100
PID 1128 wrote to memory of 3140	1128	remcos.exe	100

C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
"C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900
- C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
  "C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe"
  2⤵
  PID:4948
- C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
  "C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe"
  2⤵
  PID:4064
- C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe
  "C:\Users\Admin\AppData\Local\Temp\062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:2268
- - C:\ProgramData\Remcos\remcos.exe
    "C:\ProgramData\Remcos\remcos.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1128
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      PID:3188
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetWindowsHookEx
      PID:3140

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

logs.dat

Path C:\ProgramData\Remcos\logs.dat
Size 144B
SHA256 1e4a09bd2d40038ec942d920e53b198d36e6abb6a1b8f8ec15e78815c044e0c4
MD5 310e8afa3578b3aded3bce00fb6d3f75
SHA1 50d757fa5ab4caf71f789e238bc7e482cd2afc61
SHA512 51d9d62497e70be37c2cfb5fc7e11ce1f39c3c48b6707c2f07ea1c7d7068e8cb5a6adfd85129155da6a2990f4bd128d745f63b1edad03090b1496ef86fd6f3bd
MD5 SHA1 SHA512

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remcos.exe

Path C:\ProgramData\Remcos\remcos.exe
Size 975KB
SHA256 062a2cab613158f0f8ed1d090763270e7956407350767e47822828f076193cf5
MD5 6bc3017aa0b572802c23e8fad4c7a612
SHA1 262fb0d7951854d4ba58ad2a38480fb0bbe4f6d1
SHA512 86c6dd6d2786d01990d86b4b69d624aa373f441e4b25f6730071a5336eb32939874e8c9dd445330dfa33a5598c23c7427b6a741ecdc178678507fcab0a1b1354
SSDEEP 24576:8LZq8lDaXLp5C7UMUoloIG8h3IP8trNwNoZ:8oUDaXLnC7Ia68FCO
MD5 SHA1 SHA512 SSDEEP

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memory/900-10-0x0000000006CA0000-0x0000000006D60000-memory.dmp

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memory/900-9-0x0000000003110000-0x0000000003120000-memory.dmp

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memory/900-4-0x00000000059F0000-0x00000000059FA000-memory.dmp

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memory/900-5-0x0000000074BA0000-0x0000000075350000-memory.dmp

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memory/900-6-0x0000000008260000-0x000000000835A000-memory.dmp

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memory/900-7-0x0000000005AF0000-0x0000000005B12000-memory.dmp

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memory/900-8-0x0000000005B10000-0x0000000005B1C000-memory.dmp

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memory/900-2-0x0000000005D70000-0x0000000006314000-memory.dmp

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memory/900-0-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

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memory/900-11-0x00000000086A0000-0x000000000873C000-memory.dmp

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memory/900-18-0x0000000074BA0000-0x0000000075350000-memory.dmp

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memory/900-3-0x0000000005860000-0x00000000058F2000-memory.dmp

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memory/900-1-0x0000000000E80000-0x0000000000F7A000-memory.dmp

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memory/1128-31-0x00000000744A0000-0x0000000074C50000-memory.dmp

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memory/1128-42-0x00000000744A0000-0x0000000074C50000-memory.dmp

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memory/1128-30-0x00000000744AE000-0x00000000744AF000-memory.dmp

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memory/2268-13-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2268-29-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2268-16-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2268-15-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2268-12-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-41-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-61-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-40-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-43-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-44-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-45-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-47-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-50-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-51-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-52-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-54-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-36-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-58-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-37-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-62-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-63-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-66-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-69-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-72-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-73-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-74-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-77-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-80-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-83-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-84-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-85-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-88-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/3140-91-0x0000000000400000-0x0000000000482000-memory.dmp

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