remcos | 55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3

General

Target

55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
Size

2.2MB
MD5

9e54a8a912ad618adcc99b85f70ac890
SHA1

78387e3ad45570230d51bea6366949b331890b48
SHA256

55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3
SHA512

a7a5b2be3b26f7acbea49d449031b427c53a7e6e6fabc5f0dc8f17da3b3ce3c36887d85371f35e42b18deb06ca3c87dc2a19b2f42d53b6e4da60b35cea54c0c6
SSDEEP

24576:AD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPj8/j73AneLKJJ+:Ap7E+QrFUBgq2U

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
2800	sbietrcl.exe
2616	sbietrcl.exe

Loads dropped DLL 1 IoCs

pid	Process
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.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"	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 2616	2800	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	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.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
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
2800	sbietrcl.exe
2800	sbietrcl.exe
2800	sbietrcl.exe
2800	sbietrcl.exe
2800	sbietrcl.exe
2800	sbietrcl.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
Token: SeDebugPrivilege	2800	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 2080 wrote to memory of 2800	2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe	31
PID 2080 wrote to memory of 2800	2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe	31
PID 2080 wrote to memory of 2800	2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe	31
PID 2080 wrote to memory of 2800	2080	55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe	31
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32
PID 2800 wrote to memory of 2616	2800	sbietrcl.exe	32

C:\Users\Admin\AppData\Local\Temp\55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.exe
"C:\Users\Admin\AppData\Local\Temp\55e1c8b2f1042eb8eec5588a45dccae8e74e3ef6eb9999757f62a7fbeae04de3N.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:2080
- 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:2800
- - 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

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\CabD20E.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

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

Filesize
2.2MB

MD5
f7d7810532425f78f9cf1833f472e82c

SHA1
bb946197aae947604d5024df2849a3d8fdf31959

SHA256
8220094f92b8a7c3fd2d689c5ad69b099e27fa5e7280209c1701ffbf4575c17d

SHA512
e5c0b1bb3e89fef2381c982ac68709b159c9fa18f74887213ff911ae1a05edb15975085796dd285ad86f6468b616870d8a0632d83f6d29b61a97855a3536797a

Download Submit
memory/2080-1-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-2-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-10-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-11-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-23-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-29-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2080-0-0x0000000074531000-0x0000000074532000-memory.dmp

Filesize
4KB

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

Filesize
92KB

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

Filesize
92KB

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

Filesize
92KB

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

Filesize
92KB

Download
memory/2616-42-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-44-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

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

Filesize
92KB

Download
memory/2616-54-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2616-57-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

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

Filesize
92KB

Download
memory/2616-62-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2616-63-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2800-31-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2800-58-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2800-32-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2800-41-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2800-40-0x0000000074530000-0x0000000074ADB000-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