remcos | 26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-09-2024 17:20

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General

Target

26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe
Size

1.0MB
MD5

3e8c08e25ead11c971b7d6d0c6992d8b
SHA1

c9f3bd9dc092463a405967b7c9237522f3db0a94
SHA256

26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6
SHA512

0d9b74577c90530af134b86b2669968a39c8bf0885826021d8f6fe228e8a66974f1df929b4940f4a5ff8b024554f6bdf40e6559670204f876a0f074de5300598
SSDEEP

24576:N+1bAypceDrbuuMGsMc2DOqqwrEKUfZlEq+HLUUz4:0VOeDrCpfMZSZfjfZqq+o/

Score

10^/10

remcos 5764576 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

5764576

172.93.218.178:45667

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
765-XJJE0J
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4000	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1316 set thread context of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98

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 4 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	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.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	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.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
452	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4000	powershell.exe
4000	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1316 wrote to memory of 4000	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	94
PID 1316 wrote to memory of 4000	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	94
PID 1316 wrote to memory of 4000	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	94
PID 1316 wrote to memory of 452	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	96
PID 1316 wrote to memory of 452	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	96
PID 1316 wrote to memory of 452	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	96
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98
PID 1316 wrote to memory of 4144	1316	26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe	98

C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe
"C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1316
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QWURykYcjiLE.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4000
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QWURykYcjiLE" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8C3.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:452
- C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe
  "C:\Users\Admin\AppData\Local\Temp\26b72c81c3128373635fb99afe3e28b5c17a069dbe828229243b3484960521f6.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4144

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w052xbop.ock.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA8C3.tmp

Filesize
1KB

MD5
4875fb675a6da4d4734907c85b910ab9

SHA1
0753fd8397c0f83327ab5a21f4aadf724acf8618

SHA256
a4721f028784457d827791a5cd9353f982bcce89cfe481c051dcc94e4df8d81b

SHA512
6c4f3a0aa30f8ab65d58abe02013a53ede3b08871dbcbcb86be611f04aff4b364cae5196a72969fe9b7c6f246805ccbb3b1bf881bcbe6516a6271f0285d3716f

Download Submit
memory/1316-8-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/1316-9-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/1316-4-0x0000000005800000-0x0000000005B54000-memory.dmp

Filesize
3.3MB

Download
memory/1316-5-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/1316-6-0x0000000005760000-0x000000000576A000-memory.dmp

Filesize
40KB

Download
memory/1316-7-0x0000000006F40000-0x0000000006F5A000-memory.dmp

Filesize
104KB

Download
memory/1316-2-0x0000000005BD0000-0x0000000006174000-memory.dmp

Filesize
5.6MB

Download
memory/1316-3-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/1316-10-0x0000000006F70000-0x0000000006F7E000-memory.dmp

Filesize
56KB

Download
memory/1316-11-0x0000000008660000-0x000000000871E000-memory.dmp

Filesize
760KB

Download
memory/1316-12-0x00000000085A0000-0x000000000863C000-memory.dmp

Filesize
624KB

Download
memory/1316-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/1316-1-0x0000000000AB0000-0x0000000000BB8000-memory.dmp

Filesize
1.0MB

Download
memory/1316-30-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-40-0x0000000005530000-0x0000000005884000-memory.dmp

Filesize
3.3MB

Download
memory/4000-60-0x0000000006D20000-0x0000000006D3A000-memory.dmp

Filesize
104KB

Download
memory/4000-22-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-70-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-67-0x0000000007040000-0x0000000007048000-memory.dmp

Filesize
32KB

Download
memory/4000-66-0x0000000007060000-0x000000000707A000-memory.dmp

Filesize
104KB

Download
memory/4000-20-0x0000000004BB0000-0x00000000051D8000-memory.dmp

Filesize
6.2MB

Download
memory/4000-31-0x0000000004B40000-0x0000000004B62000-memory.dmp

Filesize
136KB

Download
memory/4000-65-0x0000000006F60000-0x0000000006F74000-memory.dmp

Filesize
80KB

Download
memory/4000-32-0x0000000005350000-0x00000000053B6000-memory.dmp

Filesize
408KB

Download
memory/4000-38-0x00000000053C0000-0x0000000005426000-memory.dmp

Filesize
408KB

Download
memory/4000-18-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-64-0x0000000006F50000-0x0000000006F5E000-memory.dmp

Filesize
56KB

Download
memory/4000-17-0x0000000002100000-0x0000000002136000-memory.dmp

Filesize
216KB

Download
memory/4000-44-0x0000000005A00000-0x0000000005A1E000-memory.dmp

Filesize
120KB

Download
memory/4000-45-0x0000000005A90000-0x0000000005ADC000-memory.dmp

Filesize
304KB

Download
memory/4000-46-0x0000000006010000-0x0000000006042000-memory.dmp

Filesize
200KB

Download
memory/4000-47-0x0000000072940000-0x000000007298C000-memory.dmp

Filesize
304KB

Download
memory/4000-57-0x0000000005F90000-0x0000000005FAE000-memory.dmp

Filesize
120KB

Download
memory/4000-58-0x0000000006A00000-0x0000000006AA3000-memory.dmp

Filesize
652KB

Download
memory/4000-59-0x0000000007360000-0x00000000079DA000-memory.dmp

Filesize
6.5MB

Download
memory/4000-21-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/4000-61-0x0000000006D90000-0x0000000006D9A000-memory.dmp

Filesize
40KB

Download
memory/4000-62-0x0000000006FA0000-0x0000000007036000-memory.dmp

Filesize
600KB

Download
memory/4000-63-0x0000000006F20000-0x0000000006F31000-memory.dmp

Filesize
68KB

Download
memory/4144-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4144-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download