remcos | a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed

General

Target

a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
Size

933KB
MD5

b6ac42cf48a2543935d5d40075f5fd14
SHA1

93bc000564f1c4eb583d75db7f15aab972458fc8
SHA256

a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed
SHA512

665540a63ebbf407737cee76b0e74cdeb66aa7102036c51762b02c4e66575beff6df08bc58954572d672b76aa7da4e54ffa5761b30bda43fcfdcc8437f4e7f98
SSDEEP

12288:0p+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3A5:0pugRNJI1D39dlfGQrFUxwAeA5

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
Remcos family
remcos

Executes dropped EXE 2 IoCs

pid	Process
2848	sbietrcl.exe
2728	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2848 set thread context of 2728	2848	sbietrcl.exe	30

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	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.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
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe
2848	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
Token: SeDebugPrivilege	2848	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2728	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 796 wrote to memory of 2848	796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe	29
PID 796 wrote to memory of 2848	796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe	29
PID 796 wrote to memory of 2848	796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe	29
PID 796 wrote to memory of 2848	796	a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe	29
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30
PID 2848 wrote to memory of 2728	2848	sbietrcl.exe	30

C:\Users\Admin\AppData\Local\Temp\a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.exe
"C:\Users\Admin\AppData\Local\Temp\a07bf67c7d1ee19cea84d7e54681b732471db08588e08eaa64e2c3d3e60a74ed.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:796
- 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:2848
- - 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:2728

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
9a5905c0e9b2eec4f59ec373d681ab5f

SHA1
c37947ac483c3a2d391be74673749cd9f858519b

SHA256
0a20732542b0d5ea6bd1e19edf12d9e92ccd041d9636e840eb25aaeb354679c9

SHA512
96943dc0a8f5bc6ed57e48c450f98cfe14c5126410b4057b86eb2d3bab6c11f6eb615d21e5c1e6de3b7fde35f87468f5d0aeed2ffc38d3568daa71bfdf3a3cf9

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab84E9.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
939KB

MD5
9f1e33effeb263c6eddefe370ebb8c4f

SHA1
9aca601e974633dddc5b2fe7b73c289b7b7af7c3

SHA256
78f866b097f9741e1ca39efd2f3fedd90bcbeac6dcf1e8f41338abe40bd6084f

SHA512
834a96170f678a320f9329e830680b4f0974e608f79446896822a59bb7df49a66c1d9237ccfc58bb827783c078e7489eea98cb2b0c0ceb71c48c6755ee8835f0

Download Submit
memory/796-1-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-2-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-12-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-13-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-25-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-26-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-32-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/796-0-0x00000000747D1000-0x00000000747D2000-memory.dmp

Filesize
4KB

Download
memory/2728-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-71-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-56-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-68-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-67-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2728-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2848-62-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-34-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-35-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-45-0x00000000747D0000-0x0000000074D7B000-memory.dmp

Filesize
5.7MB

Download
memory/2848-44-0x00000000747D0000-0x0000000074D7B000-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