remcos | 6a1679c6375dbd6c4b959611fb54e894384a765d6b257a5e82e8fbde1c21e57a

General

Target

8c6670300401e984a577829661de4bf0N.exe
Size

2.2MB
MD5

8c6670300401e984a577829661de4bf0
SHA1

e0968c1ae920c0f635feb1f0db87bedfb81ee00b
SHA256

6a1679c6375dbd6c4b959611fb54e894384a765d6b257a5e82e8fbde1c21e57a
SHA512

0dda160e72268f20fcb2007f195bceca90b0620de11a309abb2e4cccfd5d02fab396e7e79f3a19f3591111daaee040e9c6a66a7bfc0848e8af66d039d0c5f22a
SSDEEP

24576:tD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF49rOoBlI:tp7E+QrFUBgq2f3I

Score

10^/10

remcos host credential_access 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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Executes dropped EXE 2 IoCs

pid	Process
2772	sbietrcl.exe
2360	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2460	8c6670300401e984a577829661de4bf0N.exe

Reads user/profile data of web browsers 2 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

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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	8c6670300401e984a577829661de4bf0N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2772 set thread context of 2360	2772	sbietrcl.exe	32

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	8c6670300401e984a577829661de4bf0N.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
2460	8c6670300401e984a577829661de4bf0N.exe
2460	8c6670300401e984a577829661de4bf0N.exe
2460	8c6670300401e984a577829661de4bf0N.exe
2460	8c6670300401e984a577829661de4bf0N.exe
2460	8c6670300401e984a577829661de4bf0N.exe
2460	8c6670300401e984a577829661de4bf0N.exe
2772	sbietrcl.exe
2772	sbietrcl.exe
2772	sbietrcl.exe
2772	sbietrcl.exe
2772	sbietrcl.exe
2772	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2460	8c6670300401e984a577829661de4bf0N.exe
Token: SeDebugPrivilege	2772	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 2460 wrote to memory of 2772	2460	8c6670300401e984a577829661de4bf0N.exe	31
PID 2460 wrote to memory of 2772	2460	8c6670300401e984a577829661de4bf0N.exe	31
PID 2460 wrote to memory of 2772	2460	8c6670300401e984a577829661de4bf0N.exe	31
PID 2460 wrote to memory of 2772	2460	8c6670300401e984a577829661de4bf0N.exe	31
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32
PID 2772 wrote to memory of 2360	2772	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\8c6670300401e984a577829661de4bf0N.exe
"C:\Users\Admin\AppData\Local\Temp\8c6670300401e984a577829661de4bf0N.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:2460
- 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:2772
- - 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
10b33847b67112af3c6c9083e0b2d94e

SHA1
c4a47d941884fecacaf1cee10f5dae75e14c6376

SHA256
fdefd011d936228fc453d2ae85c1d92c64aeb4242156e2d1382814237336c507

SHA512
7aa4241089d43b7ed3ce9dfe276fe61808363d2f94cf0add92ab0b48cc7368ddb363dba7eb100ab98ac43ca413a83625607b2030134ebb538ab5e8ea478e9d5a

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab3F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.2MB

MD5
c76013b62cacb2a6b243ab5d86a6fb3a

SHA1
18a3477d3e77c99e430c059986803806a6a107c1

SHA256
e3cbe630813930142437641076f15eacf70ab0e746dc7fea8f9221c670c49285

SHA512
cd52766c85abc9a16124d1b3de8db58fd9f4cdd4975e28b1560c5ba08fe36178c612d93091b520ec22385d24a6bc7b8e5bc1961ab702700cc2b62e30e259b6c5

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

Filesize
92KB

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

Filesize
92KB

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

Filesize
92KB

Download
memory/2360-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

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

Filesize
92KB

Download
memory/2360-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2360-59-0x0000000000400000-0x0000000000417000-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/2360-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

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

Filesize
92KB

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

Filesize
92KB

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

Filesize
92KB

Download
memory/2460-0-0x0000000073C01000-0x0000000073C02000-memory.dmp

Filesize
4KB

Download
memory/2460-30-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2460-1-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2460-11-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2460-12-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-42-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-41-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-31-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-63-0x0000000073C00000-0x00000000741AB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-32-0x0000000073C00000-0x00000000741AB000-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