remcos | 1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4

Analysis

max time kernel
149s
max time network
147s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 01:15

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
Size

897KB
MD5

00cb16ec61346dc7a4410acbb683a6f2
SHA1

d4c2741a51aef320c23e66221741bdbfbda9ddea
SHA256

1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4
SHA512

e33736dcb7e553bfdfc708c948413630496befdc9fc4bf5a83e42cea93ea400624379aeca984636b066c7d2377a524ce00112215c68a9dd6b4bdd9aba845ed9d
SSDEEP

24576:qgEceydzP4Nj+x/SZ/Jk9R9Hq9AfQaz/smsNqGxDeI:qVkjmK9R9K9Af7sN3

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
2792	powershell.exe
2812	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39

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	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.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	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.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
3032	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
2812	powershell.exe
2792	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
Token: SeDebugPrivilege	2812	powershell.exe
Token: SeDebugPrivilege	2792	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2648	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2792	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	31
PID 2384 wrote to memory of 2792	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	31
PID 2384 wrote to memory of 2792	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	31
PID 2384 wrote to memory of 2792	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	31
PID 2384 wrote to memory of 2812	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	33
PID 2384 wrote to memory of 2812	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	33
PID 2384 wrote to memory of 2812	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	33
PID 2384 wrote to memory of 2812	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	33
PID 2384 wrote to memory of 3032	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	35
PID 2384 wrote to memory of 3032	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	35
PID 2384 wrote to memory of 3032	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	35
PID 2384 wrote to memory of 3032	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	35
PID 2384 wrote to memory of 2788	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	37
PID 2384 wrote to memory of 2788	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	37
PID 2384 wrote to memory of 2788	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	37
PID 2384 wrote to memory of 2788	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	37
PID 2384 wrote to memory of 2632	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	38
PID 2384 wrote to memory of 2632	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	38
PID 2384 wrote to memory of 2632	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	38
PID 2384 wrote to memory of 2632	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	38
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39
PID 2384 wrote to memory of 2648	2384	1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe	39

C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
"C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384
- 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\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2792
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jcXOqLBJLRu.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2812
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jcXOqLBJLRu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB61.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3032
- C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
  "C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe"
  2⤵
  PID:2788
- C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
  "C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe"
  2⤵
  PID:2632
- C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe
  "C:\Users\Admin\AppData\Local\Temp\1c251b2a58b7c9c19bca9f5eb75fa7cd93a73fe07e34c1759a2381dda79ffda4.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2648

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

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
3dc2e309a8fa6d74fedd290dc073d7b7

SHA1
faca7c4492a96760eaffefe83e63be92cd07b401

SHA256
b81ed6763653dcbfa72ba20dd8e753d57d80e3c60a37b1b872f1f5b078c24285

SHA512
cd4632b06ee2730eb4a3357d58f9ce8da6690a358d88c15f9d560b6bf28c4902cfcf5cf000974bc7d1b2b691b43f7f7980c4c922bef911b85199818b6718a48d

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDB61.tmp

Filesize
1KB

MD5
a4336dcb357894caa2e8a9fbd3917b6a

SHA1
b4a62963bab466761d20a9a9364b3e56ceab2925

SHA256
3473b972bea8f698693cb6c0420b575fc2da577e4d19be782f74456b69462183

SHA512
470245789b34c0e662f8caefd30683bf44a182618f593699e04a64300119c8dd1f6e1065a4dab3317c9d6be82a14308edcb1ad61e8bb6a3a8a4ff34b6ce90c31

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\YQXUJILEULGM0YT2EK2F.temp

Filesize
7KB

MD5
89727387a63b9305568c5e738fae6404

SHA1
4d60fe2fccacc767ee4309472f10eeb642d442bf

SHA256
1092f6edeadd0e95d35cf69293ff6a1652e65caa2b208b21877f6efd0f70a5dc

SHA512
aae7e45c224ddedf4b3aebe3b93fc93db0088f350fd91108f93c29d71d002f69a5a366bc642a4de61d9126af36a433d1c0b97470ceb37ca8fdd9d0469c374ba7

Download Submit
memory/2384-0-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/2384-1-0x0000000000070000-0x0000000000156000-memory.dmp

Filesize
920KB

Download
memory/2384-2-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2384-3-0x0000000000620000-0x0000000000632000-memory.dmp

Filesize
72KB

Download
memory/2384-4-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/2384-5-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2384-6-0x0000000005400000-0x00000000054C0000-memory.dmp

Filesize
768KB

Download
memory/2384-41-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2648-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download