remcos | cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124

General

Target

cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
Size

1.9MB
MD5

a1fa1f1fb1412e7de0e3bef87343290d
SHA1

7bc05b344cb418027ad279c036a9182e4e5d7350
SHA256

cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124
SHA512

1f1a8cc9763639482fefc1ec6b61d939426e699dbe7a2b621c2eebc880b420c10b25e0c27378096146ae2cc1dbe0fdb9e7a9ed0b6d3f2929d05c24147a81124a
SSDEEP

24576:MD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6y1:MF+QrFUBgq25eKu6y1

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
read.dat
keylog_flag
false
keylog_folder
CastC
keylog_path
%AppData%
mouse_option
false
mutex
remcos_sccafsoidz
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screens
screenshot_path
%AppData%
screenshot_time
1
startup_value
remcos
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

Executes dropped EXE 2 IoCs

pid	Process
2884	sbietrcl.exe
2692	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2884 set thread context of 2692	2884	sbietrcl.exe	32

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 3 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	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
2884	sbietrcl.exe
2884	sbietrcl.exe
2884	sbietrcl.exe
2884	sbietrcl.exe
2884	sbietrcl.exe
2884	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
Token: SeDebugPrivilege	2884	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2692	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2884	2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe	31
PID 2672 wrote to memory of 2884	2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe	31
PID 2672 wrote to memory of 2884	2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe	31
PID 2672 wrote to memory of 2884	2672	cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe	31
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32
PID 2884 wrote to memory of 2692	2884	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe
"C:\Users\Admin\AppData\Local\Temp\cc25c37834e04127c13349d5a8639e15163ee72e9a156efb06f06baccb524124.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2884
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2692

Network

MITRE ATT&CK Enterprise v15

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabD115.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.9MB

MD5
c88acb85cf569b4a8ea549bc30db60d8

SHA1
99b2490bc897abb40e4c638f84442182540b5fe1

SHA256
0a43bb55bcefebd534a4c0a799b4819ec373749b463432d5dc8d7ead48969382

SHA512
c7acf635eec17d54cd29f18b3697e11440f91f056faa78582f349960dd232573fde56982f9b05c0831eab20b7a42e9f6d0944874c46c95f9d50727482585ac92

Download Submit
memory/2672-8-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2672-9-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2672-10-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2672-11-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2672-27-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2672-0-0x00000000741F1000-0x00000000741F2000-memory.dmp

Filesize
4KB

Download
memory/2692-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-50-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2692-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-40-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2692-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2884-56-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-31-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-30-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-39-0x00000000741F0000-0x000000007479B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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