remcos | cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310

General

Target

cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
Size

959KB
MD5

ec320d17514670ae8d4a19b226572d60
SHA1

5c3eadd977f46dcc4b3c7dbd3513b4f22970354d
SHA256

cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310
SHA512

383f07b53d26bb166e1f059159a632e60f8604e8765314663f606f0cb5e4b1893c82ed9dccdcfb1431cf034dc95c959fda354740408639c52306a8e4a28e6ed5
SSDEEP

12288:bfeDOa9r5j5XqkJD0QrOod7XxlW91RRep+rgRNyA55IxJ2DJn0p51:SD39dlfGQrFUspugRNJI2DJn0pf

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe

Executes dropped EXE 2 IoCs

pid	Process
2952	sbietrcl.exe
5048	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2952 set thread context of 5048	2952	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	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
2952	sbietrcl.exe
2952	sbietrcl.exe
2952	sbietrcl.exe
2952	sbietrcl.exe
2952	sbietrcl.exe
2952	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
Token: SeDebugPrivilege	2952	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 2952	4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe	91
PID 4104 wrote to memory of 2952	4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe	91
PID 4104 wrote to memory of 2952	4104	cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe	91
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94
PID 2952 wrote to memory of 5048	2952	sbietrcl.exe	94

C:\Users\Admin\AppData\Local\Temp\cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.exe
"C:\Users\Admin\AppData\Local\Temp\cbb302b30ee9eeaede1bca45603d3363e42d2d3302574467186eff6fd5349310N.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:4104
- 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:2952
- - 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:5048

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
968KB

MD5
067dd5c7b43f14aacb980519d2ecb2b2

SHA1
3e98db33ff10b5f50979707d815e8eec92392d0c

SHA256
3fc9cab752225df6b1169369b651af2d46d4e1c8d801111afc9094a906c05e94

SHA512
345e539824c337930f7e62bee267da7912f573ee308a09cee9165b1d7c9e3ebfb711490c11b47080479e706b28bb099db9a3562fe7834e46b70d3c1fa841798b

Download Submit
memory/2952-39-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/2952-32-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/2952-31-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/2952-30-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/2952-29-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4104-3-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4104-17-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4104-28-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4104-16-0x0000000074E82000-0x0000000074E83000-memory.dmp

Filesize
4KB

Download
memory/4104-4-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4104-0-0x0000000074E82000-0x0000000074E83000-memory.dmp

Filesize
4KB

Download
memory/4104-2-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/4104-1-0x0000000074E80000-0x0000000075431000-memory.dmp

Filesize
5.7MB

Download
memory/5048-35-0x00000000003E0000-0x00000000003F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads