remcos | e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124

General

Target

e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
Size

1.4MB
MD5

7db1a0b67a4f30a44b64919b8ab85280
SHA1

b0d7831aa9191eeb2a3c2ff2f5784cea63262305
SHA256

e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124
SHA512

3d4de1d54d527ee1c750202e2d24bf10c20fcd65b24b50deec051dee61446bd375d85aa291462aab39c99109563db7f39e2d1a488ce669252458bbc95439eecd
SSDEEP

24576:gD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJ3U:gF+QrFUBgq25eKZU

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
3052	sbietrcl.exe
2672	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3052 set thread context of 2672	3052	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	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.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
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
3052	sbietrcl.exe
3052	sbietrcl.exe
3052	sbietrcl.exe
3052	sbietrcl.exe
3052	sbietrcl.exe
3052	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
Token: SeDebugPrivilege	3052	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2672	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 3052	2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe	30
PID 2128 wrote to memory of 3052	2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe	30
PID 2128 wrote to memory of 3052	2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe	30
PID 2128 wrote to memory of 3052	2128	e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe	30
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31
PID 3052 wrote to memory of 2672	3052	sbietrcl.exe	31

C:\Users\Admin\AppData\Local\Temp\e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.exe
"C:\Users\Admin\AppData\Local\Temp\e98307f10fb1d21c36c2a1104288cd0ce29684490e591df56bdd362cf6afc124N.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:2128
- 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:3052
- - 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:2672

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\Local\Temp\Cab388E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
1.4MB

MD5
356b99764c62ee6ba3f611ed48e9c8e5

SHA1
e5596ea60b988bdfbb13e368792bd23374d3aa36

SHA256
59e416a48f2d9db9cf778a581c0fb325626e29b3659949d7821fb4f95682f735

SHA512
189a7d67cc192038c01100c2e1bd10df164f1711210d45f05382f2919dd97edec0342b46b621cf67ae8d3c2174354212473000258f882eb397f35c42ed034f47

Download Submit
memory/2128-8-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-9-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-10-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-11-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2128-0-0x0000000074C01000-0x0000000074C02000-memory.dmp

Filesize
4KB

Download
memory/2128-29-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2672-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-48-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-58-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2672-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/3052-60-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/3052-30-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/3052-31-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/3052-40-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/3052-39-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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