remcos | 05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274

General

Target

05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
Size

1.9MB
MD5

c59fb68fb5e11be3dc7b53a449f31942
SHA1

f82c99791dab49a9e8c38c2f4db1705b57a9547d
SHA256

05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274
SHA512

f08a12d019d17120129994ab34c26ad80d20690bdebafa9aa77fabc0d30fd0a8c01712f85bffe277d1c7598ae92c72ea6f04a00acc34d3fea826f34ecdc4ae89
SSDEEP

24576:fD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6G:fF+QrFUBgq25eKu6G

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
3004	sbietrcl.exe
2728	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3004 set thread context of 2728	3004	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	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe
3004	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
Token: SeDebugPrivilege	3004	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 3004	1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	30
PID 1304 wrote to memory of 3004	1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	30
PID 1304 wrote to memory of 3004	1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	30
PID 1304 wrote to memory of 3004	1304	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	30
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31
PID 3004 wrote to memory of 2728	3004	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
"C:\Users\Admin\AppData\Local\Temp\05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.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:1304
- 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:3004
- - 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:2728

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\Local\Temp\Cab8527.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.9MB

MD5
27dd862930fa1bf59139184b7028a7cf

SHA1
981fcccfd4f0526e380cb055984788bc26c04750

SHA256
aada62709b8f813fff9ceace1e04ec2b2a65080322eca624f403920722e4b541

SHA512
ed9387dd0b787bbf02de0f6cfc8bfe3e72d3c53b545b22a609b804f21cead52a10cb9ce208120ad18349ba6ec194f6acc8f863410ee2a245ddba79d48fa1f6b7

Download Submit
memory/1304-1-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/1304-2-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/1304-10-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/1304-11-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/1304-23-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/1304-0-0x0000000073FF1000-0x0000000073FF2000-memory.dmp

Filesize
4KB

Download
memory/1304-30-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/2728-49-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/2728-55-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/2728-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-47-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/2728-45-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/2728-43-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/2728-41-0x00000000000C0000-0x00000000000D7000-memory.dmp

Filesize
92KB

Download
memory/3004-40-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-39-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-58-0x0000000073FF0000-0x000000007459B000-memory.dmp

Filesize
5.7MB

Download
memory/3004-31-0x0000000073FF0000-0x000000007459B000-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