remcos | 4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5

General

Target

4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
Size

2.2MB
MD5

854c20bcb3515b3d18a1d01093688b3b
SHA1

ae43f32f157b5809ae3ce40c90e5fd5448716e52
SHA256

4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5
SHA512

fdbad0291f20acab0853e121029d685d0ea627733bf086a97c81c059b8d6bf72363500d29f7de0aaaa6a83dfedf5b9a2ade69163e4427d3e96b7461756c11d5b
SSDEEP

24576:GD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjYF4avnXJJJz5/t:Gp7E+QrFUBgq2Sn7/t

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
2888	sbietrcl.exe
2660	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.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-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\sbietrcl.exe"	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 2660	2888	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	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.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
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
2888	sbietrcl.exe
2888	sbietrcl.exe
2888	sbietrcl.exe
2888	sbietrcl.exe
2888	sbietrcl.exe
2888	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
Token: SeDebugPrivilege	2888	sbietrcl.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2660	sbietrcl.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2888	2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe	31
PID 2568 wrote to memory of 2888	2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe	31
PID 2568 wrote to memory of 2888	2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe	31
PID 2568 wrote to memory of 2888	2568	4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe	31
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32
PID 2888 wrote to memory of 2660	2888	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.exe
"C:\Users\Admin\AppData\Local\Temp\4ebb9daf94dffe8a78e21b6434b3f46dee4f7a1233eabcc13f1b48e9be305fb5.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:2568
- 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:2888
- - 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:2660

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\CabDDE1.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
6b600aeecd22a8359b3ec3da79c58580

SHA1
082602b55cdaf652519533b785ffbe6556d3e08d

SHA256
dc7b0ee9deebd2a328fea909b3fe4fda329363c5b617469f71c7f33e9f2cd91a

SHA512
5aa7804ba8f0fef70aad36740ae96a1a401d6907ae2c1d45b4179410e36e9b9c236e47c0bb150bb181cf61f94e6471a449580397cf2de486f1d0e3d7965cf185

Download Submit
memory/2568-28-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2568-1-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2568-9-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2568-10-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2568-0-0x0000000074551000-0x0000000074552000-memory.dmp

Filesize
4KB

Download
memory/2660-49-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-61-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-64-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-39-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-51-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-55-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-47-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-45-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-43-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-41-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-59-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-60-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2660-56-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2888-37-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-29-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-54-0x0000000074550000-0x0000000074AFB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-38-0x0000000074550000-0x0000000074AFB000-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