remcos | 7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11-09-2024 20:18

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General

Target

rPO104.exe
Size

924KB
MD5

8fd5f061761645838e92744a0722f87d
SHA1

565a31f86b886a26cc8c10ce3780a256e4157f55
SHA256

7c88bd71a3530b4731d6e6233d0927d8f7b01c4e97cf796fa2d53b554f1d6ed9
SHA512

8d67b4408e987f2cf6fcd938058b2179bb36a703990c52b7a1cfc6058a4b568d7785a321782a0c2107091a1622e3f57e04a6109f851471e7f7064bda7b007122
SSDEEP

24576:K9o/NseOLSe+/1k38m8IyfhFTG7KQTCaAhkqG72:K2JarEZytpMGq

Score

10^/10

remcos mekus discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

mekus

dpm-sael.com:2017

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
meckus-ODY51K
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
1752	powershell.exe
2388	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2904 set thread context of 2900	2904	rPO104.exe	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	rPO104.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	rPO104.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
2028	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2388	powershell.exe
1752	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	powershell.exe
Token: SeDebugPrivilege	1752	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2900	rPO104.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2904 wrote to memory of 1752	2904	rPO104.exe	29
PID 2904 wrote to memory of 1752	2904	rPO104.exe	29
PID 2904 wrote to memory of 1752	2904	rPO104.exe	29
PID 2904 wrote to memory of 1752	2904	rPO104.exe	29
PID 2904 wrote to memory of 2388	2904	rPO104.exe	31
PID 2904 wrote to memory of 2388	2904	rPO104.exe	31
PID 2904 wrote to memory of 2388	2904	rPO104.exe	31
PID 2904 wrote to memory of 2388	2904	rPO104.exe	31
PID 2904 wrote to memory of 2028	2904	rPO104.exe	32
PID 2904 wrote to memory of 2028	2904	rPO104.exe	32
PID 2904 wrote to memory of 2028	2904	rPO104.exe	32
PID 2904 wrote to memory of 2028	2904	rPO104.exe	32
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35
PID 2904 wrote to memory of 2900	2904	rPO104.exe	35

C:\Users\Admin\AppData\Local\Temp\rPO104.exe
"C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2904
- 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\rPO104.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1752
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pNamqURus.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2388
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pNamqURus" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC227.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2028
- C:\Users\Admin\AppData\Local\Temp\rPO104.exe
  "C:\Users\Admin\AppData\Local\Temp\rPO104.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2900

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

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
2d6da08da04f8b197d4b09a576a580bb

SHA1
2f3c991f2edcd863d933bd811f9fb4bc35510c61

SHA256
1a6ab6b4fa80ea1d1ad48e18de0f10257e41eeee53ca177f5d9a49e7d92a9568

SHA512
3ca69945026a4bcba9bca75f1239f1e71d946dfdfd0ec93fc0a40627d1fdf81586a90edd22b4062217bf147e97c0b5a2d757a269def683647addae38dbcb116d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC227.tmp

Filesize
1KB

MD5
6bdcae2dc3c76f0cda1bb9c6019a4d2b

SHA1
4f7d30b57b1a9eece31170842acd14e912249de3

SHA256
a7009a043a53a1a6ae96f9e7c19baf963b6b225e91d043f7dd3de7dfc9107d70

SHA512
479fb8cef31ac177ccee00e8ab4c3ef4612cfd3e9810c5a07ddbfe29c85ce5c852df580d3cb79a8eb7f28eb52bceb016ef2b625760f1d5c1b642a4c4c02c36e0

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

Filesize
7KB

MD5
13560d970c7a42a520d7a3ffc5cee155

SHA1
4ef796cb7cd05fdfdcb5c06bbd2381e0adb12f6b

SHA256
837481aeb2fd91d29bd7b68d87d65f619bbffeb05f7d0c0e4d951d025c01debd

SHA512
f56de7734349e53e76e8d5a0e500c195cda0c37be5b87cacc90ee1b36061885162817e4a4b1f1fc8e1d228163f3c6dd7b2a4d42fec375922d7de842aced3cd18

Download Submit
memory/2900-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2900-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2900-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2904-1-0x0000000000960000-0x0000000000A4C000-memory.dmp

Filesize
944KB

Download
memory/2904-4-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/2904-0-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/2904-41-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2904-2-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download
memory/2904-3-0x00000000005C0000-0x00000000005D0000-memory.dmp

Filesize
64KB

Download
memory/2904-6-0x00000000053B0000-0x0000000005470000-memory.dmp

Filesize
768KB

Download
memory/2904-5-0x0000000074720000-0x0000000074E0E000-memory.dmp

Filesize
6.9MB

Download