remcos | fa2b7bf295ebf55e26e4ddeaaf8b5119b5332b3b6c184a530532d162411bc3b4

General

Target

Confirmation Order.exe
Size

892KB
MD5

3b13b07b05ea3f2084ee3c38080fffe3
SHA1

dde112544004281ad7d02b36c607bc4a258f22a6
SHA256

b93408af1dfa127e3b11d16cd92dab65f448d77fa933259c139bb0f0e6d33a75
SHA512

c09987d78d52fc94bc991b40380b6f5752f1b15139850d24ed93e9ea8ce74add4b4b477493fb8c0a6980de9e14fb511123e2571622c3c5a46f4402f09d037fe0
SSDEEP

12288:5Eqv8RratEshTEMAiqoWpVvfS4D36FUOJT02id9IV/SxjTWAY+acgp8bQbQk:J8OZTEMAifWTvfuL42id94cgGIQ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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

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
2820	powershell.exe
2736	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2420 set thread context of 2892	2420	Confirmation Order.exe	37

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	Confirmation Order.exe
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	Confirmation Order.exe

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
2620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	powershell.exe
2736	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	2736	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2820	2420	Confirmation Order.exe	31
PID 2420 wrote to memory of 2820	2420	Confirmation Order.exe	31
PID 2420 wrote to memory of 2820	2420	Confirmation Order.exe	31
PID 2420 wrote to memory of 2820	2420	Confirmation Order.exe	31
PID 2420 wrote to memory of 2736	2420	Confirmation Order.exe	33
PID 2420 wrote to memory of 2736	2420	Confirmation Order.exe	33
PID 2420 wrote to memory of 2736	2420	Confirmation Order.exe	33
PID 2420 wrote to memory of 2736	2420	Confirmation Order.exe	33
PID 2420 wrote to memory of 2620	2420	Confirmation Order.exe	34
PID 2420 wrote to memory of 2620	2420	Confirmation Order.exe	34
PID 2420 wrote to memory of 2620	2420	Confirmation Order.exe	34
PID 2420 wrote to memory of 2620	2420	Confirmation Order.exe	34
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37
PID 2420 wrote to memory of 2892	2420	Confirmation Order.exe	37

C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
"C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- 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\Confirmation Order.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bDXSeyoVzkpA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bDXSeyoVzkpA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2620
- C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2892

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:\Users\Admin\AppData\Local\Temp\tmpCDBB.tmp

Filesize
1KB

MD5
d20226115b4214972b22b72d08967a93

SHA1
14fe25d5b32ccd13f8cf5851b37f93dedf23d9fe

SHA256
18eb40d1bb72348d5b357af36d00c71555beae4cbded9dfbe0c21e38a251be96

SHA512
92965ed40265a1f0057fc6073bf0f13ecaef3051710cdd409ee44c7e60bd4d7aac89e4cbc2d741905a1fb58e38297f119301b3d8717cb5f78853051e0ace76ee

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
ef525d254f15012f992b6101adcc33bd

SHA1
343f587228981b77835e71f1b6e7ea0bd1f0d80b

SHA256
9cce4e977114029870d3afc8d7fa48fc4f598d7e48e995c8b10db317413c8a6d

SHA512
8103cd1326ce8012d7d1a869a0103c8ccdb04e8db9ea3a0a5988b7859e4e7c41bf9f34f41c663b4660b0c74bdb9eb3f440f839c667bf33f7fe49b1f7e979f9dd

Download Submit
memory/2420-40-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-1-0x0000000000850000-0x0000000000936000-memory.dmp

Filesize
920KB

Download
memory/2420-2-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-3-0x00000000002C0000-0x00000000002D2000-memory.dmp

Filesize
72KB

Download
memory/2420-4-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2420-5-0x0000000074BD0000-0x00000000752BE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-6-0x00000000058B0000-0x000000000596E000-memory.dmp

Filesize
760KB

Download
memory/2420-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

Filesize
4KB

Download
memory/2892-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2892-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2892-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads