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

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-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe

Executes dropped EXE 2 IoCs

pid	Process
4704	sbietrcl.exe
4832	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-1-5-21-814918696-1585701690-3140955116-1000\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 4704 set thread context of 4832	4704	sbietrcl.exe	94

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
1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
4704	sbietrcl.exe
4704	sbietrcl.exe
4704	sbietrcl.exe
4704	sbietrcl.exe
4704	sbietrcl.exe
4704	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
Token: SeDebugPrivilege	4704	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 4704	1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	93
PID 1996 wrote to memory of 4704	1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	93
PID 1996 wrote to memory of 4704	1996	05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe	93
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94
PID 4704 wrote to memory of 4832	4704	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe
"C:\Users\Admin\AppData\Local\Temp\05a78afa4e3999d56efa902bf46a8427408d16b08e40e0883c63bddd8b86c274.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996
- 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:4704
- - 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:4832

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

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\Roaming\Microsoft\Windows\Templates\sbietrcl.exe

Filesize
1.9MB

MD5
45162330e47a10914f50f100ea070119

SHA1
6147fd9b3ac681b7c870c333860829cd7527d492

SHA256
3c4de0582a02cb61eb9f1320cc24f7aa7c0f489da8f5203f6a536020b148d1f1

SHA512
0a789b258188ebcec618549f00db143f396f5911a30536ecb5fdec60c8a0459045749941576c60edd5941c1973d7ab526945494bdbf262082223cd902e5733d6

Download Submit
memory/1996-19-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1996-30-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1996-5-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1996-6-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1996-18-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/1996-0-0x00000000754D2000-0x00000000754D3000-memory.dmp

Filesize
4KB

Download
memory/1996-1-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/1996-2-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4704-31-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4704-32-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4704-34-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4704-33-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4704-41-0x00000000754D0000-0x0000000075A81000-memory.dmp

Filesize
5.7MB

Download
memory/4832-37-0x0000000000530000-0x0000000000547000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads