remcos | 8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadf

General

Target

8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
Size

2.2MB
MD5

d8678cb7b1d3332b939c548edb8f4e10
SHA1

30ed6e580a8dc070b849c97460d7384dd94af766
SHA256

8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadf
SHA512

ce354076836a47fd48cecd802736a6392d1ac8fc22291f579434d7dfc9b4d5f1bd307974dbd44a198146ed0b033f95e3e35f39ef2958804b6d011d26767b00fd
SSDEEP

24576:8D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJjR:8p7E+QrFUBgq2Sn9R

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
2580	sbietrcl.exe
656	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.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"	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2580 set thread context of 656	2580	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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
2580	sbietrcl.exe
2580	sbietrcl.exe
2580	sbietrcl.exe
2580	sbietrcl.exe
2580	sbietrcl.exe
2580	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
Token: SeDebugPrivilege	2580	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
656	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2580	3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe	31
PID 3052 wrote to memory of 2580	3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe	31
PID 3052 wrote to memory of 2580	3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe	31
PID 3052 wrote to memory of 2580	3052	8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe	31
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32
PID 2580 wrote to memory of 656	2580	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.exe
"C:\Users\Admin\AppData\Local\Temp\8460bf2d461d7bd4a713b86b37ac381cb71d57f967f01bc02cef7be71897fadfN.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:3052
- 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:2580
- - 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:656

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
342B

MD5
65cc7704214b0e024544070464fa01d7

SHA1
c7b084a4747dac6f1b7b3b9b34d43349fde36e71

SHA256
c8c8aa5bb6520331fd183ca881fa8081f5a49d20c88cc67d4bad613df117a87f

SHA512
208d3b7cf40d3508f4d59a32ab31108db9ab99cbdfad09dbfedd9253ddf81c01633de255f173074c952fc786824905dc6ec73d8e34bd8ff7820c356668a6d799

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab741.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.2MB

MD5
a7eb5dd1123b8edda8d18b54d3b5c6d9

SHA1
23c2930aac6cf2c62242407cc3c636c7d054a009

SHA256
93044b93baac1b769e7400d4bbc7441c8928975d8e379dc02c6975c298d064fe

SHA512
29f087476e4872edb7574de59016210a27aa35607e154c2f9ee4080c4151f9a923117f9d41767ed4a9e2bf09ac7038a893dd6cad719c0809dc83145ac95cb9d1

Download Submit
memory/656-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-69-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-54-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/656-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/656-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2580-43-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/2580-42-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/2580-59-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/2580-33-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-1-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-0-0x00000000742E1000-0x00000000742E2000-memory.dmp

Filesize
4KB

Download
memory/3052-13-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-2-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-32-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-12-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download
memory/3052-25-0x00000000742E0000-0x000000007488B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads