remcos | f85d410510e8b70e98e47e8173aec211ec37d07f1c2a773b87916eb8194b7c1c

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-08-2024 06:15

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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
2564	powershell.exe
4484	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	Order8938.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 2384	220	Order8938.exe	110

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

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
1932	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2564	powershell.exe
2564	powershell.exe
220	Order8938.exe
220	Order8938.exe
4484	powershell.exe
4484	powershell.exe
220	Order8938.exe
220	Order8938.exe
4484	powershell.exe
2564	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	4484	powershell.exe
Token: SeDebugPrivilege	220	Order8938.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2384	Order8938.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 2564	220	Order8938.exe	102
PID 220 wrote to memory of 2564	220	Order8938.exe	102
PID 220 wrote to memory of 2564	220	Order8938.exe	102
PID 220 wrote to memory of 4484	220	Order8938.exe	104
PID 220 wrote to memory of 4484	220	Order8938.exe	104
PID 220 wrote to memory of 4484	220	Order8938.exe	104
PID 220 wrote to memory of 1932	220	Order8938.exe	106
PID 220 wrote to memory of 1932	220	Order8938.exe	106
PID 220 wrote to memory of 1932	220	Order8938.exe	106
PID 220 wrote to memory of 5056	220	Order8938.exe	108
PID 220 wrote to memory of 5056	220	Order8938.exe	108
PID 220 wrote to memory of 5056	220	Order8938.exe	108
PID 220 wrote to memory of 4536	220	Order8938.exe	109
PID 220 wrote to memory of 4536	220	Order8938.exe	109
PID 220 wrote to memory of 4536	220	Order8938.exe	109
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110
PID 220 wrote to memory of 2384	220	Order8938.exe	110

C:\Users\Admin\AppData\Local\Temp\Order8938.exe
"C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:220
- 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:2564
- 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:4484
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TlLBve" /XML "C:\Users\Admin\AppData\Local\Temp\tmp89DC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1932
- C:\Users\Admin\AppData\Local\Temp\Order8938.exe
  "C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
  2⤵
  PID:5056
- C:\Users\Admin\AppData\Local\Temp\Order8938.exe
  "C:\Users\Admin\AppData\Local\Temp\Order8938.exe"
  2⤵
  PID:4536
- 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:2384

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4088,i,1828333185976713750,7918646547767660928,262144 --variations-seed-version --mojo-platform-channel-handle=4384 /prefetch:8
1⤵
PID:3856

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

Query Registry

T1012

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
46fdc95a0812f2a3ab76f56a4682cfc7

SHA1
b7449ffda9ba0de63f1ab510d78cffc35f882a60

SHA256
dbc07a395bd737d1c0ab296dd8b7101946c6e6e0a46e93cbab6fe26e1409eb99

SHA512
05d8d70d1cbb2ff429da3ee68d78e37c784a38de1496e0b0d55c044e5f70793f4f0fbe01f5e9871688f4d08f6e4b4eba0ccc578eb1a42cc96092010ab38045be

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2xdzjkt1.h5f.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp89DC.tmp

Filesize
1KB

MD5
b7a12ce46d2a0eeda58101516736726c

SHA1
edbd8db6a7c801e1ab316d18abe58788d0c9fdfb

SHA256
5c9455d9e61a3c03c8121369a28e36fa1d46c119eaac61f5b0679d0f8a1105ff

SHA512
0d53b369df2233111bad5b37dbc7559eab7da32db83bb69f79b8b1606d44affa305737b6f4c1aa7e0474b356ca0d325cfe51e68193b302961dc67c7034c3a4ec

Download Submit
memory/220-8-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/220-10-0x0000000005D90000-0x0000000005D9C000-memory.dmp

Filesize
48KB

Download
memory/220-5-0x0000000005AD0000-0x0000000005ADA000-memory.dmp

Filesize
40KB

Download
memory/220-6-0x0000000005BC0000-0x0000000005C5C000-memory.dmp

Filesize
624KB

Download
memory/220-7-0x0000000005D60000-0x0000000005D7A000-memory.dmp

Filesize
104KB

Download
memory/220-3-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/220-9-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/220-4-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/220-11-0x0000000005DA0000-0x0000000005DB0000-memory.dmp

Filesize
64KB

Download
memory/220-12-0x0000000006C20000-0x0000000006CE0000-memory.dmp

Filesize
768KB

Download
memory/220-0-0x0000000074F9E000-0x0000000074F9F000-memory.dmp

Filesize
4KB

Download
memory/220-2-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/220-1-0x0000000000E00000-0x0000000000F24000-memory.dmp

Filesize
1.1MB

Download
memory/220-55-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2384-124-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-136-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-170-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-169-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-167-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-166-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-163-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-162-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-160-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-158-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-157-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-155-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-152-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-150-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-148-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-146-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-145-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-143-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-141-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-138-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-135-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-131-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-129-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-123-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-102-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-107-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-116-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2384-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2564-80-0x0000000007B10000-0x0000000007BB3000-memory.dmp

Filesize
652KB

Download
memory/2564-18-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2564-19-0x0000000005AC0000-0x00000000060E8000-memory.dmp

Filesize
6.2MB

Download
memory/2564-17-0x0000000003020000-0x0000000003056000-memory.dmp

Filesize
216KB

Download
memory/2564-71-0x0000000006EF0000-0x0000000006F0E000-memory.dmp

Filesize
120KB

Download
memory/2564-22-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2564-89-0x0000000007E80000-0x0000000007E94000-memory.dmp

Filesize
80KB

Download
memory/2564-88-0x0000000007E70000-0x0000000007E7E000-memory.dmp

Filesize
56KB

Download
memory/2564-27-0x0000000006210000-0x0000000006276000-memory.dmp

Filesize
408KB

Download
memory/2564-26-0x00000000061A0000-0x0000000006206000-memory.dmp

Filesize
408KB

Download
memory/2564-86-0x0000000007EC0000-0x0000000007F56000-memory.dmp

Filesize
600KB

Download
memory/2564-44-0x0000000006300000-0x0000000006654000-memory.dmp

Filesize
3.3MB

Download
memory/2564-20-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2564-57-0x0000000006C20000-0x0000000006C6C000-memory.dmp

Filesize
304KB

Download
memory/2564-95-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/2564-91-0x0000000007F60000-0x0000000007F68000-memory.dmp

Filesize
32KB

Download
memory/2564-60-0x00000000078C0000-0x00000000078F2000-memory.dmp

Filesize
200KB

Download
memory/2564-61-0x0000000075820000-0x000000007586C000-memory.dmp

Filesize
304KB

Download
memory/4484-85-0x0000000007480000-0x000000000748A000-memory.dmp

Filesize
40KB

Download
memory/4484-25-0x0000000005210000-0x0000000005232000-memory.dmp

Filesize
136KB

Download
memory/4484-84-0x0000000007410000-0x000000000742A000-memory.dmp

Filesize
104KB

Download
memory/4484-56-0x00000000060F0000-0x000000000610E000-memory.dmp

Filesize
120KB

Download
memory/4484-94-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4484-83-0x0000000007A50000-0x00000000080CA000-memory.dmp

Filesize
6.5MB

Download
memory/4484-72-0x0000000075820000-0x000000007586C000-memory.dmp

Filesize
304KB

Download
memory/4484-21-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4484-87-0x0000000007610000-0x0000000007621000-memory.dmp

Filesize
68KB

Download
memory/4484-24-0x0000000074F90000-0x0000000075740000-memory.dmp

Filesize
7.7MB

Download
memory/4484-90-0x0000000007750000-0x000000000776A000-memory.dmp

Filesize
104KB

Download