remcos | c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee

General

Target

c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
Size

1007KB
MD5

9ff5ddda0a7d217532a2eb90cd4d225a
SHA1

b44daaaa318897d6239412308a3aecad6a564316
SHA256

c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee
SHA512

49e6aab1b93f7897018f4d3f3eaf21b614233368453b77a7c2ec0765a5463c366476f8096ca0b11bcff82731ddf268d67ea08409e68a7cdc58cdf9b82b50586d
SSDEEP

12288:Gp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC31:GpugRNJI1D39dlfGQrFUxwAeAzC31

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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe

Executes dropped EXE 2 IoCs

pid	Process
4820	sbietrcl.exe
1912	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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4820 set thread context of 1912	4820	sbietrcl.exe	97

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	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
4820	sbietrcl.exe
4820	sbietrcl.exe
4820	sbietrcl.exe
4820	sbietrcl.exe
4820	sbietrcl.exe
4820	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
Token: SeDebugPrivilege	4820	sbietrcl.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 4820	2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe	95
PID 2276 wrote to memory of 4820	2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe	95
PID 2276 wrote to memory of 4820	2276	c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe	95
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97
PID 4820 wrote to memory of 1912	4820	sbietrcl.exe	97

C:\Users\Admin\AppData\Local\Temp\c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.exe
"C:\Users\Admin\AppData\Local\Temp\c1cc4223b12a814a2d19675c084249c04100240f27991e48853c7e20ef31efee.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:2276
- 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:4820
- - 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:1912

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
1016KB

MD5
fb0fcb458f5de355f1e849b2dfdfe634

SHA1
576d31d2c229c6a11aa6bc0e94bcd560deb4b59f

SHA256
4c86d0422adc165c13a02421b1656dd6df2826301ecce092d7619ed942153678

SHA512
e12323fea9e6b783ea59c06ec07f9662862cb711255cbf72484dbc250f4bafe9c9a74d9f925711ce5aa4579d55220d607ee7123d9dca9d602474992be0bf5a30

Download Submit
memory/1912-36-0x0000000000390000-0x00000000003A7000-memory.dmp

Filesize
92KB

Download
memory/2276-19-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/2276-5-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/2276-6-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/2276-18-0x0000000075422000-0x0000000075423000-memory.dmp

Filesize
4KB

Download
memory/2276-0-0x0000000075422000-0x0000000075423000-memory.dmp

Filesize
4KB

Download
memory/2276-2-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/2276-29-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/2276-1-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/4820-31-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/4820-32-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/4820-33-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/4820-40-0x0000000075420000-0x00000000759D1000-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