remcos | 01ffe9d6f323a1dafd7dbe75338596cb03cdbe970cdc964543ae03006c1ece85

Analysis

max time kernel
147s
max time network
164s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 19:06

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General

Target

1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
Size

1.7MB
MD5

f33096aa28da8c14b681861c1f89c017
SHA1

3f98457b66376ef305ac89380b25e45a1677e494
SHA256

1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb
SHA512

d4a6b9eaf6f66660316d83b67b35623ba5faefd2ebe457b820b4972d9e472864f18897019582982218852a67067b9bdd96dff3cdb0adb93c3f63d1d5f294fdc8
SSDEEP

24576:5D39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjoy:5p7E+QrFUBgq2X

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
2688	sbietrcl.exe
2336	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.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"	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 2336	2688	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	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.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
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe
2688	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
Token: SeDebugPrivilege	2688	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2336	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2688	2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe	30
PID 2876 wrote to memory of 2688	2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe	30
PID 2876 wrote to memory of 2688	2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe	30
PID 2876 wrote to memory of 2688	2876	1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe	30
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31
PID 2688 wrote to memory of 2336	2688	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.exe
"C:\Users\Admin\AppData\Local\Temp\1e320ed242153c25553c2a0c1901ddfa69f0a747cb278608e43043311649b5cb.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:2876
- 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:2688
- - 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:2336

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

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Downloads

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

Filesize
342B

MD5
5b0a3b0e5ee7daa3a54f31a2412b10ab

SHA1
55d11a432c318d6b5af791fa6438939d6e43d8d0

SHA256
169426b2450be052f2675c9615e0c7ae849f87785aac44024c0456ad11443822

SHA512
48626a373a8b8e7c5802f26782e2e5a6ae06c5fa559d885338abe9f50a4d76b741948027370afb639ef8c8ab6f4eb53f6f3079c14df0d8be0dd1f9bc5b657e48

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab843D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.7MB

MD5
19b86f4313bb630f4893ed34e62d2ce6

SHA1
8a6e511ef64fae4d8ab1550deaf6f27b0cf09cf6

SHA256
034bef16609819fdc2550cccc1f46f9f0e0f228173d8578ce4d742a8ee368779

SHA512
3c1c41c854a23d1c7ebac347d1ea7ff282801eddbec619f0808585efc16e080829c36b1c5721781bcf4a844076e68af56e8e1c10e516b2bc5c227441f7912c0d

Download Submit
memory/2336-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-66-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-49-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-50-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-51-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2336-53-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-46-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2336-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2688-45-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2688-44-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2688-63-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2688-34-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2688-35-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-13-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-0-0x0000000074F01000-0x0000000074F02000-memory.dmp

Filesize
4KB

Download
memory/2876-2-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-33-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-12-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-26-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-1-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download
memory/2876-25-0x0000000074F00000-0x00000000754AB000-memory.dmp

Filesize
5.7MB

Download