remcos | f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231

General

Target
f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231.exe
Size 626KB
Sample260901-zgs4eaef68
SHA256 f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231
MD5 8157eb3ae4a3ea9e989841f7f924decf
SHA1 c0d9a5ebe363598d8d38c9ff6468fbe133880563
SHA512 e31143c26439e753919d8337910dde401338cf74ce16cef1939374458132a98b017b673dcd40b2b6b026e3f7d5af98fc8b83bd9241ecf6ed18d174b9ce3e4e98
SSDEEP 12288:SZL8K7flZQP2MfAeWoqOKpqs3+Jt6eJcJYYoF5Zr:MQKjlZQuaVWoqVpqsuJt6YcJYY05
TLSH
T1EDD47D4AA3A441F4D077C235CA828537E6B2BC056670862F13D74E5B6F273A15F2EB26
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

remotehost remcos persistence rat

Malware Config

Extracted

Family

remcos

Version

7.2.6 Pro

Botnet

RemoteHost

C2

superslot55.co:443
slotticagiris.live:443
slot91.co:443
uu88.ws:443
qh88.es:443
kuwinad.com:443

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
WinService.exe
copy_folder
service
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc_c2-XKOJZD
screenshot_crypt
true
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2808	WinService.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\USER\S-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc_c2-XKOJZD = "\"C:\\Users\\Admin\\AppData\\Roaming\\service\\WinService.exe\""	f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc_c2-XKOJZD = "\"C:\\Users\\Admin\\AppData\\Roaming\\service\\WinService.exe\""	f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3989226554-2204910950-1522900112-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc_c2-XKOJZD = "\"C:\\Users\\Admin\\AppData\\Roaming\\service\\WinService.exe\""	WinService.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc_c2-XKOJZD = "\"C:\\Users\\Admin\\AppData\\Roaming\\service\\WinService.exe\""	WinService.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 3896	2808	WinService.exe	90
PID 3896 set thread context of 4768	3896	msedge.exe	92

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	5208	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	5208	AUDIODG.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3896	msedge.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3896	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3896	msedge.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4580 wrote to memory of 2808	4580	f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231.exe	89
PID 2808 wrote to memory of 3896	2808	WinService.exe	90
PID 3896 wrote to memory of 4768	3896	msedge.exe	92

C:\Users\Admin\AppData\Local\Temp\f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231.exe
"C:\Users\Admin\AppData\Local\Temp\f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4580
- C:\Users\Admin\AppData\Roaming\service\WinService.exe
  "C:\Users\Admin\AppData\Roaming\service\WinService.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2808
- - \??\c:\program files (x86)\microsoft\edge\application\msedge.exe
    "c:\program files (x86)\microsoft\edge\application\msedge.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3896
  - - C:\Windows\system32\svchost.exe
      "C:\Windows\system32\svchost.exe"
      4⤵
      PID:4768

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x00000000000004CC 0x00000000000004D0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5208

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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

logs.dat

Path C:\ProgramData\remcos\logs.dat
Size 274B
SHA256 c72dc78ba968e9780a53d9b0c201230d5f1a7335f949d039319e82226e427d3f
MD5 6d8b3ca1cb12c57e8af70e1977d0dab4
SHA1 95f00897e391b265daf2250e2ce562e42bcc5e6c
SHA512 92f200a30df562f60c01ac89c54e077ffa287a37510d826f4b440dfa8a7fe80fd37b38390d1cf3d069adc5a6b945f0553de891fe159401180f962ba37203a8a1
TLSH
T1E4D0EB4022C1A8F4DAC33CE19D0F3C7284E0724006028F9983329EC8CC100D0433EFD9
MD5 SHA1 SHA512 TLSH

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WinService.exe

Path C:\Users\Admin\AppData\Roaming\service\WinService.exe
Size 626KB
SHA256 f9bf74e3a6a1ddfeb24663b43e72503bd5c28c2c09c475848a5f714cea775231
MD5 8157eb3ae4a3ea9e989841f7f924decf
SHA1 c0d9a5ebe363598d8d38c9ff6468fbe133880563
SHA512 e31143c26439e753919d8337910dde401338cf74ce16cef1939374458132a98b017b673dcd40b2b6b026e3f7d5af98fc8b83bd9241ecf6ed18d174b9ce3e4e98
SSDEEP 12288:SZL8K7flZQP2MfAeWoqOKpqs3+Jt6eJcJYYoF5Zr:MQKjlZQuaVWoqVpqsuJt6YcJYY05
TLSH
T1EDD47D4AA3A441F4D077C235CA828537E6B2BC056670862F13D74E5B6F273A15F2EB26
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3896-4-0x0000000140000000-0x00000001400AB000-memory.dmp

Download

memory/3896-8-0x0000000140000000-0x00000001400AB000-memory.dmp

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memory/3896-12-0x0000000140000000-0x00000001400AB000-memory.dmp

Download

memory/3896-16-0x0000000140000000-0x00000001400AB000-memory.dmp

Download

memory/3896-19-0x0000000140000000-0x00000001400AB000-memory.dmp

Download

memory/4768-5-0x0000000140000000-0x00000001400AB000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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