remcos | 115eecb607fdaf63fa831cc0ec169c2efa99a31f690ba2d43ebe15c58d958a42

General

Target

NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
Size

1.1MB
MD5

1109042c3f41ad8b2b37562004c61130
SHA1

b198c98a92b13396bf7de61487d61e86bc6a13d4
SHA256

115eecb607fdaf63fa831cc0ec169c2efa99a31f690ba2d43ebe15c58d958a42
SHA512

5be01e9d10904fbda94e9d92dd86ffbb7033a77d9d6880f5759cdb04b9b01339728319b61f1d9378423b2ffa513d615385258d546ef0ca8c1b4e9e4edd5145c1
SSDEEP

12288:OfeDOa9rDeYSorINpj5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJ53J/J/Z:FD39v74lfGQrFUspugRNJI2DJ53J/J/Z

Score

10^/10

remcos host 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

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-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe

Executes dropped EXE 2 IoCs

pid	Process
432	sbietrcl.exe
4540	sbietrcl.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-1-5-21-3125601242-331447593-1512828465-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 432 set thread context of 4540	432	sbietrcl.exe	98

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
432	sbietrcl.exe
432	sbietrcl.exe
432	sbietrcl.exe
432	sbietrcl.exe
432	sbietrcl.exe
432	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
Token: SeDebugPrivilege	432	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 432	1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe	96
PID 1944 wrote to memory of 432	1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe	96
PID 1944 wrote to memory of 432	1944	NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe	96
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98
PID 432 wrote to memory of 4540	432	sbietrcl.exe	98

C:\Users\Admin\AppData\Local\Temp\NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.1109042c3f41ad8b2b37562004c61130_JC.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1944
- 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
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:432
- - 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:4540

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1.1MB

MD5
294197b31046d186062a38b112838beb

SHA1
5153bc4313de16903c09c5f9419ed2482c8fd0ad

SHA256
af12ac6b95a140f3497e0015b86a87a0461876224a8c2929c806d382f7f0dcaa

SHA512
0e4a06d14ddae6617bdc30fbf6f9d1611674a90b1a815104cdf10644abe91a430ae843792cf4a24fc99418263c5b409679ce107ebb7955af692e4f1ed2dd0fd8

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

Filesize
1.1MB

MD5
294197b31046d186062a38b112838beb

SHA1
5153bc4313de16903c09c5f9419ed2482c8fd0ad

SHA256
af12ac6b95a140f3497e0015b86a87a0461876224a8c2929c806d382f7f0dcaa

SHA512
0e4a06d14ddae6617bdc30fbf6f9d1611674a90b1a815104cdf10644abe91a430ae843792cf4a24fc99418263c5b409679ce107ebb7955af692e4f1ed2dd0fd8

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

Filesize
1.1MB

MD5
294197b31046d186062a38b112838beb

SHA1
5153bc4313de16903c09c5f9419ed2482c8fd0ad

SHA256
af12ac6b95a140f3497e0015b86a87a0461876224a8c2929c806d382f7f0dcaa

SHA512
0e4a06d14ddae6617bdc30fbf6f9d1611674a90b1a815104cdf10644abe91a430ae843792cf4a24fc99418263c5b409679ce107ebb7955af692e4f1ed2dd0fd8

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

Filesize
1.1MB

MD5
294197b31046d186062a38b112838beb

SHA1
5153bc4313de16903c09c5f9419ed2482c8fd0ad

SHA256
af12ac6b95a140f3497e0015b86a87a0461876224a8c2929c806d382f7f0dcaa

SHA512
0e4a06d14ddae6617bdc30fbf6f9d1611674a90b1a815104cdf10644abe91a430ae843792cf4a24fc99418263c5b409679ce107ebb7955af692e4f1ed2dd0fd8

Download Submit
memory/432-30-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/432-29-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/432-39-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/432-32-0x00000000017B0000-0x00000000017C0000-memory.dmp

Filesize
64KB

Download
memory/432-31-0x00000000017B0000-0x00000000017C0000-memory.dmp

Filesize
64KB

Download
memory/1944-3-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/1944-2-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/1944-28-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/1944-0-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/1944-5-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/1944-4-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/1944-1-0x0000000074E70000-0x0000000075421000-memory.dmp

Filesize
5.7MB

Download
memory/1944-6-0x00000000012E0000-0x00000000012F0000-memory.dmp

Filesize
64KB

Download
memory/4540-35-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads