remcos | 5de218dd00c5b6536a8ea373bbe9b9f2079f788a113b847fbd5c39932170a6e6

Analysis

max time kernel
129s
max time network
154s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:16

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General

Target

d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
Size

880KB
MD5

54fab8b19cff15f0431e5fb1415f5e35
SHA1

22df553be076382ad84097e51a11ceea6110691f
SHA256

d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086
SHA512

f2109f32d7e82b9d29c4e2f66281c758d8c397d71df0de4f775aeac69cd38962676a6c38f5ac606d579c651a160570a25259aa08f56d4f866c3234c4def42d62
SSDEEP

12288:Sp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3Ar:SpugRNJI1D39dlfGQrFUxwAeAr

Score

10^/10

remcos host discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

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
2896	sbietrcl.exe
2616	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.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"	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 2616	2896	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	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sbietrcl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
2896	sbietrcl.exe
2896	sbietrcl.exe
2896	sbietrcl.exe
2896	sbietrcl.exe
2896	sbietrcl.exe
2896	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
Token: SeDebugPrivilege	2896	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2616	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 2896	2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe	29
PID 2312 wrote to memory of 2896	2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe	29
PID 2312 wrote to memory of 2896	2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe	29
PID 2312 wrote to memory of 2896	2312	d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe	29
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30
PID 2896 wrote to memory of 2616	2896	sbietrcl.exe	30

C:\Users\Admin\AppData\Local\Temp\d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.exe
"C:\Users\Admin\AppData\Local\Temp\d1a0b78620011cdf2da572aca494dc7841cb4ca79d073b671d522434894ab086.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:2312
- 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:2896
- - 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:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
342B

MD5
764e7a868e5f7347dee0270afdc5d762

SHA1
dccf2b5ad1efe92b5f05d9b4098541b2b5fedf7b

SHA256
81e2b4c4e47f2eb85568f35d708c8c2e37e1ce077152cc6f910ed26633e36bb2

SHA512
3f0cdbb88ddaf275f5f1cc14487c982331420c866a5ac20ca7f66d2878cc7f0e737c0045cad4fae16c6c48cfa7483b046dd0521401678d537c7f5bc39cb39fdd

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab3553.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
886KB

MD5
206c437cc43538a972802b3c49aba565

SHA1
8da85fed1f3433ac55c329b5f8b496d26a27c614

SHA256
7048b5dc61c6514c284d2cf543318c0a088919b4e229d38a4ff112ea61365cfe

SHA512
d0ef8e5a83f54aea37a773d9216537f80454658945fc32c86d31d49ee99fd4079ae2d5350e59391a7048bc69647ff1241b808c41227d89b19838792f669dcf5c

Download Submit
memory/2312-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2312-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2312-12-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2312-13-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2312-25-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2312-26-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2312-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/2312-33-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2616-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-67-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-65-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-52-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-54-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2896-35-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-34-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-45-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-66-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-44-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download