remcos | 19e14165500691ec0a6c3a02d845535b83da5839b5337c6ee65c0cc5c465711d

General

Target

NEW ORDER FE7191PO1.exe
Size

971KB
MD5

b0442c4273a9316c625815156b6fbbe5
SHA1

2e581d3e24a7e2e69369b259afd32dbcc0cbf20e
SHA256

c1eeb9ddca80bda9fa0f220c2eb5767021a29055e8edc7b25249e65aa24123eb
SHA512

c6100e66aa886239f96beade7e2e3431b26545653b8d482faacd274d31f6e8ce49488e5fa366733b6acfa1edc40dd91d8a888676556c37eceaeaf7ad185acabe
SSDEEP

24576:+bYUn9Wx+3amLyuRVRc2dqJsSJ68H6pIsaHqwk53kxqfTGDk:+XQxqaoycKuqJunIsaHZk53kEl

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

xbbxzqaw.ddns.net:4072

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-MBHG8E
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2280	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3064 set thread context of 1896	3064	NEW ORDER FE7191PO1.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	NEW ORDER FE7191PO1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NEW ORDER FE7191PO1.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2280	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1896	NEW ORDER FE7191PO1.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3064 wrote to memory of 2280	3064	NEW ORDER FE7191PO1.exe	30
PID 3064 wrote to memory of 2280	3064	NEW ORDER FE7191PO1.exe	30
PID 3064 wrote to memory of 2280	3064	NEW ORDER FE7191PO1.exe	30
PID 3064 wrote to memory of 2280	3064	NEW ORDER FE7191PO1.exe	30
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32
PID 3064 wrote to memory of 1896	3064	NEW ORDER FE7191PO1.exe	32

C:\Users\Admin\AppData\Local\Temp\NEW ORDER FE7191PO1.exe
"C:\Users\Admin\AppData\Local\Temp\NEW ORDER FE7191PO1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3064
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\NEW ORDER FE7191PO1.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2280
- C:\Users\Admin\AppData\Local\Temp\NEW ORDER FE7191PO1.exe
  "C:\Users\Admin\AppData\Local\Temp\NEW ORDER FE7191PO1.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
c26b6d0d952e96e2418412a12eab9572

SHA1
4c2011da58b685a3f63edd279cd635f8f0014df2

SHA256
3ae0abfdc456daedcd0bf55e50b106d2d2e2fc82708374f9f6cf8b12d0b3bb5f

SHA512
54db1a4654ec3f20e07413782ffe53e6138b67d56e572131a0dd49d3b3b7f34b6a7393242975b04f730804d4c79c3bed3ad6bd726ff3fc01291da877bcaf2084

Download Submit
memory/1896-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-9-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-11-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-13-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-7-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1896-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1896-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/3064-6-0x000000000A440000-0x000000000A500000-memory.dmp

Filesize
768KB

Download
memory/3064-0-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/3064-27-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-5-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-4-0x0000000073F6E000-0x0000000073F6F000-memory.dmp

Filesize
4KB

Download
memory/3064-3-0x0000000000740000-0x000000000075E000-memory.dmp

Filesize
120KB

Download
memory/3064-2-0x0000000073F60000-0x000000007464E000-memory.dmp

Filesize
6.9MB

Download
memory/3064-1-0x0000000000ED0000-0x0000000000FC6000-memory.dmp

Filesize
984KB

Download

Analysis

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