remcos | 2893e5b3a7ec45648d209ffe13b912994e6cc867400eb5730d89d06deac41713

Analysis

max time kernel
150s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
03-09-2024 17:22

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General

Target

61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
Size

1006KB
MD5

c8da5e64c79548b8447b7544517442db
SHA1

e8bc50e2f1fe84fe96523a40d2a0abfd01c72bf7
SHA256

61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f
SHA512

1d3e062b225f87bc1bde79b25b9bdd0499eda092817b83436d1f1760da9a928f9dcf07456485ce472559f7f4b6e5e7ac0a7af1069cbc1983be0d906cac4893e1
SSDEEP

24576:/doEWj+MjS9+ZW8Z6+soNQMOHGRukDq7IR0RJgU:i1jm+w8dCHGRuEq7IRqh

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

45.89.247.135:2404

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-7IHQDG
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2596	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2704 set thread context of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34

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 3 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	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
2596	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
Token: SeDebugPrivilege	2596	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2704 wrote to memory of 2596	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	30
PID 2704 wrote to memory of 2596	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	30
PID 2704 wrote to memory of 2596	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	30
PID 2704 wrote to memory of 2596	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	30
PID 2704 wrote to memory of 2768	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	32
PID 2704 wrote to memory of 2768	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	32
PID 2704 wrote to memory of 2768	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	32
PID 2704 wrote to memory of 2768	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	32
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34
PID 2704 wrote to memory of 2652	2704	61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe	34

C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
"C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\unpuLJjbqcRkR.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2596
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\unpuLJjbqcRkR" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8141.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2768
- C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe
  "C:\Users\Admin\AppData\Local\Temp\61ebc7c6cd424b7043ee4df8e01489d66259a23979593fa1a5e7fbf54fe4ef4f.exe"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2652

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:\Users\Admin\AppData\Local\Temp\tmp8141.tmp

Filesize
1KB

MD5
37e49c54ce7ae201cf99e85ea3c284c3

SHA1
85ddfd2ea67d2802ae5f904cab45fdde4154e445

SHA256
cff4270011161a91c93afcc42271c5e779f749beaf3dda58d3f6bdb299694449

SHA512
a17a1b15dedbd74f14034ecd231153119408df21e4550953797852bfc3a62d52d8f87ecdc9fa936ae0c90feeac94142a1804aa59a14f46db1f92a335c42c1b5c

Download Submit
memory/2652-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2652-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2704-35-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-6-0x00000000050B0000-0x0000000005170000-memory.dmp

Filesize
768KB

Download
memory/2704-5-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-4-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download
memory/2704-3-0x0000000000420000-0x0000000000438000-memory.dmp

Filesize
96KB

Download
memory/2704-2-0x0000000073ED0000-0x00000000745BE000-memory.dmp

Filesize
6.9MB

Download
memory/2704-1-0x00000000011B0000-0x00000000012B2000-memory.dmp

Filesize
1.0MB

Download
memory/2704-0-0x0000000073EDE000-0x0000000073EDF000-memory.dmp

Filesize
4KB

Download