remcos | ec8b5d134fb3669c59733a303ef5a03bb6cc5a02602bce545d4fedda93ea4962

General

Target

BL-TLN0124796CMACGM.scr
Size

915KB
MD5

02d513fa3a4c04f1ffce97c25caccdff
SHA1

853948f7ff1d69a293c4f4617185c24b9859e6dd
SHA256

d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a
SHA512

9a9b925e7d5acec5216ecb64f7352a8a27598106452984f08155f2bef640fe1ad93ff3a7869cacfaec2514641740c41fcc0e7e4f0172eaa7072c1c9c05087ab3
SSDEEP

24576:SgW2J4Sl29MaW6EEJJQEtTShtxMwwW7yUVzmoeli:SgjJYSoxtuDxZlyUVzmo

Score

10^/10

remcos generalwire-slaves discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

GeneralWire-Slaves

C2

milliondollar23.duckdns.org:3984

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-TWU43D
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2828	powershell.exe
2708	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 2592	2252	BL-TLN0124796CMACGM.scr	35

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BL-TLN0124796CMACGM.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BL-TLN0124796CMACGM.scr

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2736	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2252	BL-TLN0124796CMACGM.scr
2252	BL-TLN0124796CMACGM.scr
2708	powershell.exe
2828	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2252	BL-TLN0124796CMACGM.scr
Token: SeDebugPrivilege	2708	powershell.exe
Token: SeDebugPrivilege	2828	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2592	BL-TLN0124796CMACGM.scr

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2708	2252	BL-TLN0124796CMACGM.scr	29
PID 2252 wrote to memory of 2708	2252	BL-TLN0124796CMACGM.scr	29
PID 2252 wrote to memory of 2708	2252	BL-TLN0124796CMACGM.scr	29
PID 2252 wrote to memory of 2708	2252	BL-TLN0124796CMACGM.scr	29
PID 2252 wrote to memory of 2828	2252	BL-TLN0124796CMACGM.scr	31
PID 2252 wrote to memory of 2828	2252	BL-TLN0124796CMACGM.scr	31
PID 2252 wrote to memory of 2828	2252	BL-TLN0124796CMACGM.scr	31
PID 2252 wrote to memory of 2828	2252	BL-TLN0124796CMACGM.scr	31
PID 2252 wrote to memory of 2736	2252	BL-TLN0124796CMACGM.scr	32
PID 2252 wrote to memory of 2736	2252	BL-TLN0124796CMACGM.scr	32
PID 2252 wrote to memory of 2736	2252	BL-TLN0124796CMACGM.scr	32
PID 2252 wrote to memory of 2736	2252	BL-TLN0124796CMACGM.scr	32
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35
PID 2252 wrote to memory of 2592	2252	BL-TLN0124796CMACGM.scr	35

C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
"C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2252
- 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\BL-TLN0124796CMACGM.scr"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2708
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LdtceRaylJq.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC800.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr
  "C:\Users\Admin\AppData\Local\Temp\BL-TLN0124796CMACGM.scr"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
0ec65c63d03f51aeb575a40012a3293f

SHA1
8d13839b14d7c77b8f435be901815d07ab6bb514

SHA256
8ef586f997af011b3d40caef879ecec731a9031275fa8e44c4595e4c61c72d99

SHA512
e6f6208a95181299347cf0168bd8e8c3d5f4563e43541bbb36f8e5b6b0ae6a4fb3d70bca8fffe2004b4203ba9a255c69159a380d67e89701380199a9f2557ab8

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC800.tmp

Filesize
1KB

MD5
367e4ec3bcfbf1bdf3b27169610fe5b8

SHA1
757fca91ceb705e783e62b91c8a7a8a64ee93c83

SHA256
fc53e6f46b60f8404e4ef30f795d62f83055197f2f4a7769c6692af538018a92

SHA512
a24b94f757469d12d18107ab3dc3423ba85edfbbc0793e201ee2a2a77f3aa4fdf5d026769842c8fe388d0dbfe605ff219377008e4ae0fc413d903a79bbd6fccd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\15C4O5HQCKQBFBCBB3FY.temp

Filesize
7KB

MD5
663141bd5e4696545f78cc4765673517

SHA1
44c26a217b20d65054d7a61ca938baf4d1159ce3

SHA256
29a58ae10c09fa795c40e433f68c858da445881baa3a338cfcef9d810596b2f4

SHA512
5482a33c97c07138a57b6ffa2f07e1f7fc0b58f350775b5397fff7a80000e52632ad8514cdad7add927c9f19fa041667e2070850d918ac8ff1e1025e3373aa60

Download Submit
memory/2252-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2252-1-0x0000000000F00000-0x0000000000FEA000-memory.dmp

Filesize
936KB

Download
memory/2252-2-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2252-3-0x0000000000630000-0x0000000000642000-memory.dmp

Filesize
72KB

Download
memory/2252-4-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2252-5-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2252-6-0x0000000005490000-0x0000000005550000-memory.dmp

Filesize
768KB

Download
memory/2252-42-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2592-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2592-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2592-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads