remcos | 18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933

General

Target

18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
Size

2.3MB
MD5

c5f3e561e7ccb480156ce573d1375260
SHA1

07afc48f6ac5d19ce1b1ea3c36d30bdc9ad36045
SHA256

18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933
SHA512

17e57d75bd52a23d7212215e089b0e0c61ee5057762e05edd19a47a267858a1c1f967387396c2a364f4fe7a8b11e1f7a6ca11f81053f284db6d41b0831608bca
SSDEEP

24576:xD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJlWj:xp7E+QrFUBgq2SnDWj

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
2404	sbietrcl.exe
2188	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2404 set thread context of 2188	2404	sbietrcl.exe	29

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	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.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
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
2404	sbietrcl.exe
2404	sbietrcl.exe
2404	sbietrcl.exe
2404	sbietrcl.exe
2404	sbietrcl.exe
2404	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
Token: SeDebugPrivilege	2404	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2188	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 2404	2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe	28
PID 2124 wrote to memory of 2404	2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe	28
PID 2124 wrote to memory of 2404	2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe	28
PID 2124 wrote to memory of 2404	2124	18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe	28
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29
PID 2404 wrote to memory of 2188	2404	sbietrcl.exe	29

C:\Users\Admin\AppData\Local\Temp\18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.exe
"C:\Users\Admin\AppData\Local\Temp\18c122dd74707bc39b0578316e5e7abd39a81e6d8efafaa5367da6bece623933N.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:2124
- 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:2404
- - 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:2188

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\Local\Temp\CabA286.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.3MB

MD5
c7321d996e4eaffc2664e077e7e95871

SHA1
256ee7136f8dbf61fea1613b300cc388d83da952

SHA256
23701c456474bd2ac62118946b51f6e9a1f962517006dec4b84685c00a83f030

SHA512
a81a89b29dc8f0c209d587865d6a547211012693cb5d4821eabbcfa4cd93c0855e7c8504e8bef4460de16d0ab352458b28d47587ea940f063127fb9c391cb501

Download Submit
memory/2124-1-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-9-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-10-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-11-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-29-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2124-0-0x00000000743D1000-0x00000000743D2000-memory.dmp

Filesize
4KB

Download
memory/2188-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2188-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2188-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2404-63-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2404-30-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2404-31-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2404-40-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download
memory/2404-39-0x00000000743D0000-0x000000007497B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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