remcos | 0e09af12603369c6a3542303dc72e6f32d2aa226270aad1c46a59ca10a015ff7

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
28-08-2024 14:46

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General

Target

Order8938.exe
Size

1.1MB
MD5

d3fff3f1d4f8d5b93f8ee6ef9de88b81
SHA1

cebcaf2839acba54a8d37fa6b85ccdd82d6b85b1
SHA256

f1e379ba6ef730a30192c591a00410fc174136c7eb71fed2596586b14f29551c
SHA512

00b9d1aa659929827f6e27e1d02d1409edb1f337bbb8a6972163d5be9df42d5e1b45d1e6b9912e836ad77ca0a8269970e317e6c6abb756eec1d693f43cd79aa6
SSDEEP

24576:fv5f66t1rUT6fdMjWo+Dq2MyXKr5B5l3no53lQ9ZynYQHtd19X:H5xy4Gjr+Dqz5do5C9Zy3d11

Score

10^/10

remcos aug - 21 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

AUG - 21

sungito2.ddns.net:5055

154.216.19.222:7088

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-9KM8RM
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
2808	powershell.exe
584	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2308 set thread context of 992	2308	Order8938.exe	37

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Order8938.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Order8938.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2932	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2808	powershell.exe
584	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	584	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
992	Order8938.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 584	2308	Order8938.exe	31
PID 2308 wrote to memory of 584	2308	Order8938.exe	31
PID 2308 wrote to memory of 584	2308	Order8938.exe	31
PID 2308 wrote to memory of 584	2308	Order8938.exe	31
PID 2308 wrote to memory of 2808	2308	Order8938.exe	33
PID 2308 wrote to memory of 2808	2308	Order8938.exe	33
PID 2308 wrote to memory of 2808	2308	Order8938.exe	33
PID 2308 wrote to memory of 2808	2308	Order8938.exe	33
PID 2308 wrote to memory of 2932	2308	Order8938.exe	35
PID 2308 wrote to memory of 2932	2308	Order8938.exe	35
PID 2308 wrote to memory of 2932	2308	Order8938.exe	35
PID 2308 wrote to memory of 2932	2308	Order8938.exe	35
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37
PID 2308 wrote to memory of 992	2308	Order8938.exe	37

C:\Users\Admin\AppData\Local\Temp\Order8938.exe
"C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- 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\Order8938.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:584
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TlLBve.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TlLBve" /XML "C:\Users\Admin\AppData\Local\Temp\tmp339E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2932
- C:\Users\Admin\AppData\Local\Temp\Order8938.exe
  "C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:992

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
3535d6e007ad17baf5453b708408dec1

SHA1
0ea450d94407708ae605337e147f2ee2ef17a22f

SHA256
2a301885f376f04cbfbae9c2c7b179ed6b56c102cad9708934aede15a2cab762

SHA512
29c8564dff17c8e0e933078d6c220eb7bd70e382cf54596441e4066a7b071a989908f590ceaa54a09b080a1c6ed4ad4a20798b50ba76954539a72f7c0d7992fa

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp339E.tmp

Filesize
1KB

MD5
33112f80f55af2789a6d04915c7d4206

SHA1
82792719837d7ad3995caf7a9bb3005abeddc24c

SHA256
b0511cc925bc8317d2b0a2db0b892e3df8878127682db687f7c8d93942456a58

SHA512
7b9ba2daf03c16b48d8bf43cf354923d7e280e812bdb59838b9a103fb7d1b136c9952c7f4469bbbdb44527f7f8578b1738fa849afa96a749f3f9f56a6ec3e572

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

Filesize
7KB

MD5
35972fbea25138a4e191c4d0832e56f6

SHA1
b74ec2378febec46ba2c85f09a0b4fd0826b31f1

SHA256
3a41f2a35423e8583857b09d877fbfc22c3abfbd679dce323c46f48c8a48ca7b

SHA512
1cc63397d73805ed49e26ed02565aa405068852246ddb56e7da1af2670bd279ec4270ce134ca7cdecbf0271719100ef9a29e61600255f679ebc1ed494fb6107c

Download Submit
memory/992-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-99-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-94-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/992-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-89-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-83-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/992-86-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2308-4-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp

Filesize
4KB

Download
memory/2308-1-0x0000000001140000-0x0000000001264000-memory.dmp

Filesize
1.1MB

Download
memory/2308-44-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-2-0x0000000074BC0000-0x00000000752AE000-memory.dmp

Filesize
6.9MB

Download
memory/2308-3-0x0000000000910000-0x000000000092A000-memory.dmp

Filesize
104KB

Download
memory/2308-7-0x0000000005AA0000-0x0000000005B60000-memory.dmp

Filesize
768KB

Download
memory/2308-6-0x0000000000950000-0x0000000000960000-memory.dmp

Filesize
64KB

Download
memory/2308-5-0x0000000000940000-0x000000000094C000-memory.dmp

Filesize
48KB

Download