remcos | 2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7e

General

Target

2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
Size

2.3MB
MD5

db2560e13f011b4c558289a05713b340
SHA1

26e642b39e4531a9106704bfc0e0d28acb995305
SHA256

2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7e
SHA512

1716f0c46ec23c78b24239d0ed9d6453848df33b21a210f5439cfa101b3c9ce221bc72312c9ac2bf6df13c76648ac38b24ff8d0dcbc11092f9dab6ef8e4ac5cc
SSDEEP

24576:HD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJlnp:Hp7E+QrFUBgq2SnDnp

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

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

Executes dropped EXE 2 IoCs

pid	Process
2712	sbietrcl.exe
792	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2712 set thread context of 792	2712	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 3 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	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
2712	sbietrcl.exe
2712	sbietrcl.exe
2712	sbietrcl.exe
2712	sbietrcl.exe
2712	sbietrcl.exe
2712	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
Token: SeDebugPrivilege	2712	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
792	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2712	2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe	30
PID 2400 wrote to memory of 2712	2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe	30
PID 2400 wrote to memory of 2712	2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe	30
PID 2400 wrote to memory of 2712	2400	2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe	30
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31
PID 2712 wrote to memory of 792	2712	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.exe
"C:\Users\Admin\AppData\Local\Temp\2833c6001e4a986864905132528cb8a021b3d49413b6a1305074e3106fe83b7eN.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:2400
- 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:2712
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\sbietrcl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:792

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

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
5eefe0aeb5d815b9bfbed1a78a5ee153

SHA1
3f34e1acf3276ecee236f944a0f28b577a8faa8b

SHA256
72ac18e4e41f8b981e22e1f342f374f7fa56028c3eebaf99428ddc4854ba39ef

SHA512
b54a63ec9002e1da4d53099a129a70909b06795892472a5998e70f69558a81806e2061d9991c6d92c19343d9c03317ea75fb65782bc94915dcea9fd4a2483d92

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab7530.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.3MB

MD5
5c318546604224f92e1780812cf3e0cd

SHA1
130cd9357465a650f890a2c5b2bd832ce4215f91

SHA256
ed758ae87dd2b6952d0d087952da9e0c4f99b33933ef7a40c507a0bbb2048fdf

SHA512
bd98411d42aa5505529263f957e01fb4ef8aa0165364d241da5973183b9be744014ea8e3226c48e20f93120db0a0e885f3dec66679221b8c2e8bf5c02a6d37bf

Download Submit
memory/792-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-70-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/792-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/792-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2400-2-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2400-1-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2400-0-0x0000000074CC1000-0x0000000074CC2000-memory.dmp

Filesize
4KB

Download
memory/2400-13-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2400-32-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2400-12-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2400-25-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-44-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-43-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-33-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-34-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2712-67-0x0000000074CC0000-0x000000007526B000-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