remcos | c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762

General

Target

c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
Size

1.4MB
MD5

6ab5af8965a154d4d0148cbf7508d5b0
SHA1

f793f287916e1c3c39b7883e5161d75b8bf55da6
SHA256

c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762
SHA512

0c03d46c9c9c101bc43a1581dd3f9227bbd71480d4fd0d22acad4b851a2c4dc5198b16522709753ba543b9ccdd73761a4410182238ad47f4c37903bf9a0102dc
SSDEEP

24576:6D39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJU:6F+QrFUBgq25eKS

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
2924	sbietrcl.exe
2360	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2924 set thread context of 2360	2924	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	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.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
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
2924	sbietrcl.exe
2924	sbietrcl.exe
2924	sbietrcl.exe
2924	sbietrcl.exe
2924	sbietrcl.exe
2924	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
Token: SeDebugPrivilege	2924	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2360	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 2924	2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe	30
PID 2932 wrote to memory of 2924	2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe	30
PID 2932 wrote to memory of 2924	2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe	30
PID 2932 wrote to memory of 2924	2932	c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe	30
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31
PID 2924 wrote to memory of 2360	2924	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.exe
"C:\Users\Admin\AppData\Local\Temp\c1d4fab9bdad36905abf360e5839297f587866e96ba6880e445a6a7d98f02762N.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:2932
- 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:2924
- - 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:2360

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
1392c0efd5c657c06a3ef0a479f3f80f

SHA1
dbc0d493ba9425259922c2292039c7619e03ecc1

SHA256
1966bfd5f2846982336f4e19abb02da28cba84be45185281d101f2a93fa3dc04

SHA512
edec98f300a80d10eed566c9a0c6ecda67af44655f48ed1cc27f856c8b1be795f7a7acb22f1ea27d04823681c2efc4d4d0b9058e385f9540577c8f9c57fd553a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9C3F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.4MB

MD5
2ea8c948a281bb9ddd33a907387dd803

SHA1
70cdd47834498ea7396c587658d1ea772b1e81f2

SHA256
91e726852ba9ce25c53e993b4049737fd7afefc2e994cab282c5bea82e0c7633

SHA512
682b83db803bd339e47ff18a36c54318ecccef27ac8bfe4e34a1237d49be19b29bf37f9de98cf00485789ca71db9691e93008867d165089579ce880b003d06ec

Download Submit
memory/2360-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-68-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2360-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2924-42-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2924-41-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2924-32-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2924-65-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-0-0x0000000074A01000-0x0000000074A02000-memory.dmp

Filesize
4KB

Download
memory/2932-8-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-13-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-9-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-12-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2932-31-0x0000000074A00000-0x0000000074FAB000-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