remcos | ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
06-12-2024 03:06

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General

Target

ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
Size

854KB
MD5

a0602bf02ae7766b58bffd108f148b7b
SHA1

65b1ea618e93e70049d395401352fa06c85ffa38
SHA256

ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a
SHA512

27a6ef4322db17ab64acc78b946f14400cda55b1e800d674dd3a47fe89521e227d31f41df00ada3336c82a34bf1b023a2710aa9b4836ea64877c0d866accb00c
SSDEEP

12288:DvUSmi/ScuxtPoeptfKh74Us0kJMxghMDXP4Faaxttoeq8:DXmi/SLxtJnyE0cMxrLEawtKet

Score

10^/10

remcos 8846455 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

8846455

windowsoctarem.duckdns.org:56892

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
4765-HH3V0S
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
Remcos family
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
2296	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.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 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.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
2464	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2296	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2296	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2296	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 1968 wrote to memory of 2296	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 1968 wrote to memory of 2296	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 1968 wrote to memory of 2296	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	31
PID 1968 wrote to memory of 2464	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	33
PID 1968 wrote to memory of 2464	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	33
PID 1968 wrote to memory of 2464	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	33
PID 1968 wrote to memory of 2464	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	33
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35
PID 1968 wrote to memory of 2888	1968	ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe	35

C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
"C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YBbcCHHNhNpA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2296
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YBbcCHHNhNpA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCD2E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2464
- C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe
  "C:\Users\Admin\AppData\Local\Temp\ac56ec5a81bca833585ad1c052dc5614936523763c87ade64f519b23a4f0b24a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2888

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\tmpCD2E.tmp

Filesize
1KB

MD5
3368ed00e3594fe004fb57bdafc6c3b7

SHA1
15c1ce3c90dc23e9e2a0c9685454e945083ff346

SHA256
66e949ebf2ab92adabb900a1a023576ce2791acf4d42b4cfb927569015d76c3e

SHA512
872847e84fb962aa390e852afbfccda2d0c8ae79f89746bcc85c7f9cd0e011b79795e3247fca79b3a3fcb580386d5bce409550a1a47c80306b1b3aa19e6d6cd0

Download Submit
memory/1968-0-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/1968-1-0x0000000001100000-0x00000000011DC000-memory.dmp

Filesize
880KB

Download
memory/1968-2-0x0000000074EC0000-0x00000000755AE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-3-0x00000000005A0000-0x00000000005B2000-memory.dmp

Filesize
72KB

Download
memory/1968-4-0x0000000074ECE000-0x0000000074ECF000-memory.dmp

Filesize
4KB

Download
memory/1968-5-0x0000000074EC0000-0x00000000755AE000-memory.dmp

Filesize
6.9MB

Download
memory/1968-6-0x00000000052A0000-0x000000000535E000-memory.dmp

Filesize
760KB

Download
memory/1968-34-0x0000000074EC0000-0x00000000755AE000-memory.dmp

Filesize
6.9MB

Download
memory/2888-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2888-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2888-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download