remcos | cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb

General

Target

cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
Size

1020KB
MD5

dd27543bd47c9778e06923f2c80288dd
SHA1

b51d2818ca602199f0dd172c44f382b8c624861c
SHA256

cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb
SHA512

3b4e48b24bd4324a7ba6020fc32c7fd84701314606b2cf2ed05d9983ce3a8f9755fcafe0056d354bd2ea898a1f6aca4316345d01afc3680499fbb44ed7265753
SSDEEP

12288:Dp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC3F:DpugRNJI1D39dlfGQrFUxwAeAzC3F

Score

10^/10

remcos host discovery persistence rat

Malware Config

Extracted

Family

remcos

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
2836	sbietrcl.exe
2208	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2836 set thread context of 2208	2836	sbietrcl.exe	31

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 2 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	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
2836	sbietrcl.exe
2836	sbietrcl.exe
2836	sbietrcl.exe
2836	sbietrcl.exe
2836	sbietrcl.exe
2836	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
Token: SeDebugPrivilege	2836	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2836	2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	30
PID 2156 wrote to memory of 2836	2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	30
PID 2156 wrote to memory of 2836	2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	30
PID 2156 wrote to memory of 2836	2156	cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe	30
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31
PID 2836 wrote to memory of 2208	2836	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.exe
"C:\Users\Admin\AppData\Local\Temp\cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb.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:2156
- 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:2836
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    PID:2208

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

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
5a3501e3a44fffbaa26b5fdd6aacca96

SHA1
eb526e19ba8bc9e746eb3262d0fdf880cf019359

SHA256
d43ac09645adcc001c9ca6d26d18de8d433cbce63a032c3c753e86265a117966

SHA512
0b6a18ca22d9389854ebc199c7998b538618cc20cb1997e45578944c6806df9c60aea9630fe3cfb82c3ab8675a64fc790d506eb9260cd5e4e880651967759912

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab3A81.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.0MB

MD5
0b56c91c911108cbd35ddeb36fb5c2be

SHA1
bbea8e3c9c354c18deb53b8f98e2bdf8b3af73ae

SHA256
2106ef4aed5ca6ce218eff604da023061f113fee206599b682cdce6f242f83c8

SHA512
760eeffcf85cd89c10828e5d22b2675b7662b1df37f87f07cf7c00afc4ee5282bc0d9611c1d5c9a695d783c96f49f511fa000dfb82de8317f3ac1ba2f4fe5aec

Download Submit
memory/2156-8-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2156-0-0x0000000074281000-0x0000000074282000-memory.dmp

Filesize
4KB

Download
memory/2156-30-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2156-12-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2156-11-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2208-42-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2208-52-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2208-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2208-48-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2208-47-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2208-45-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2208-44-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/2836-40-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-41-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-31-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2836-55-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads