remcos | 3f8fbd3962801ab4abd07d655a029a9c67fa3ac55de4f39c7b71d761cfcc54e0

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2023 10:24

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

FAT986545600986.exe
Size

1.0MB
MD5

470249dbfe3ac7f1d16ea4a52ef76fb3
SHA1

984ef38fbfa4efd6b9310a07c4a6b2be63e328bf
SHA256

f77532a0a209676025270db283534fc63ba0780415e8273d670fc6d1bc4bf1f5
SHA512

ec2edf6140afcf84719a8a2d53303ee86fa6b32406b0fc99db6d87dcc162577b9766f88e5fb7643e4cb4fb09c5431c5ab3d8029800eab02aa1b81914e3faba39
SSDEEP

24576:h34/up+pJ1sRbSz55MlrTQF4ZriIqBT3peD:h38PJ1QSz55CsIiIqBs

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

107.175.229.139:8087

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-IZFV1M
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

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

Processes:

FAT986545600986.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\Control Panel\International\Geo\Nation	FAT986545600986.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

FAT986545600986.exe

description pid process target process

PID 4768 set thread context of 2268 4768 FAT986545600986.exe FAT986545600986.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

4192 schtasks.exe

description	pid	process	target process
PID 4768 set thread context of 2268	4768	FAT986545600986.exe	FAT986545600986.exe

pid	process
4192	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

FAT986545600986.exepowershell.exepowershell.exe

pid	process
4768	FAT986545600986.exe
4796	powershell.exe
4768	FAT986545600986.exe
4768	FAT986545600986.exe
2996	powershell.exe
4768	FAT986545600986.exe
4768	FAT986545600986.exe
4768	FAT986545600986.exe
4796	powershell.exe
2996	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

FAT986545600986.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4768	FAT986545600986.exe
Token: SeDebugPrivilege	4796	powershell.exe
Token: SeDebugPrivilege	2996	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

FAT986545600986.exe

pid process

2268 FAT986545600986.exe

pid	process
2268	FAT986545600986.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

FAT986545600986.exe

description	pid	process	target process
PID 4768 wrote to memory of 2996	4768	FAT986545600986.exe	powershell.exe
PID 4768 wrote to memory of 2996	4768	FAT986545600986.exe	powershell.exe
PID 4768 wrote to memory of 2996	4768	FAT986545600986.exe	powershell.exe
PID 4768 wrote to memory of 4796	4768	FAT986545600986.exe	powershell.exe
PID 4768 wrote to memory of 4796	4768	FAT986545600986.exe	powershell.exe
PID 4768 wrote to memory of 4796	4768	FAT986545600986.exe	powershell.exe
PID 4768 wrote to memory of 4192	4768	FAT986545600986.exe	schtasks.exe
PID 4768 wrote to memory of 4192	4768	FAT986545600986.exe	schtasks.exe
PID 4768 wrote to memory of 4192	4768	FAT986545600986.exe	schtasks.exe
PID 4768 wrote to memory of 3804	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 3804	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 3804	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2508	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2508	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2508	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe
PID 4768 wrote to memory of 2268	4768	FAT986545600986.exe	FAT986545600986.exe

C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe
"C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4768

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\FAT986545600986.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2996

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zulqgtKXtL.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4796

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zulqgtKXtL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8211.tmp"
2⤵
- Creates scheduled task(s)
PID:4192

C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe
"C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
2⤵
PID:3804

C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe
"C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
2⤵
PID:2508

C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe
"C:\Users\Admin\AppData\Local\Temp\FAT986545600986.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
a44fedc838dfd0d0e35cebbdd8d5d95e

SHA1
146532afa855a116365285e0a9d5668ad2a24d18

SHA256
323e401038bed096855dd9c8869e6b781ec7cacdf8ccc0bd9b99b3a12bbeb34a

SHA512
a4b816a18bc33bc05a79fb07c02376f4e594258f69719190636a2b7f1ed34bae11a2c11cd8647a3fc5ed516088367383549033676e8458ca1203c5beb4425cb0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
14eb93b06629c60458c439c3fd73d1d7

SHA1
830c234a3edecbad3bf906984dd199dbcbf80219

SHA256
2bdc12818a449b9f9b94d7f72bef4f26db75524a38827bbf1bcefbcf46b8c52c

SHA512
1dfa81534ed7978c49e7ca9a54e43de558b61c6fe6df936b3e3c543b5a45d840e9d09d6160f78f6e2d24bb774f14d218779ddf876dd9602edc37443733cc1c26

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yyovwgmx.ijj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8211.tmp

Filesize
1KB

MD5
7168dd30a31959b250089c6bf8deca86

SHA1
4e31750c6b2bd2431c51069872ae0affa2fd749a

SHA256
83ac08ce85aac89aea1b55467620d947e6c569248597a242435c5c7aa50fee7c

SHA512
314f4c5885d68cf5c17ec6e5cb58f65fd00fdc5310da8f1cbf525cbfae12724582c7d9e1e8aefbdfff322a2b6f9218dbff72fada8e371e03a89a52fbe982e65d

Download Submit
memory/2268-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-128-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-121-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-115-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-114-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-122-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-133-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-135-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-140-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2268-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2996-58-0x0000000005A60000-0x0000000005A7E000-memory.dmp

Filesize
120KB

Download
memory/2996-88-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

Filesize
104KB

Download
memory/2996-102-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/2996-94-0x00000000070E0000-0x00000000070FA000-memory.dmp

Filesize
104KB

Download
memory/2996-52-0x0000000005690000-0x00000000059E4000-memory.dmp

Filesize
3.3MB

Download
memory/2996-17-0x0000000004CB0000-0x00000000052D8000-memory.dmp

Filesize
6.2MB

Download
memory/2996-92-0x0000000006FD0000-0x0000000006FDE000-memory.dmp

Filesize
56KB

Download
memory/2996-25-0x0000000002260000-0x0000000002270000-memory.dmp

Filesize
64KB

Download
memory/2996-23-0x0000000004AE0000-0x0000000004B02000-memory.dmp

Filesize
136KB

Download
memory/2996-16-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/2996-90-0x0000000007020000-0x00000000070B6000-memory.dmp

Filesize
600KB

Download
memory/2996-59-0x0000000005AB0000-0x0000000005AFC000-memory.dmp

Filesize
304KB

Download
memory/2996-15-0x0000000002160000-0x0000000002196000-memory.dmp

Filesize
216KB

Download
memory/2996-63-0x0000000073DD0000-0x0000000073E1C000-memory.dmp

Filesize
304KB

Download
memory/2996-18-0x0000000002260000-0x0000000002270000-memory.dmp

Filesize
64KB

Download
memory/2996-64-0x000000007FC00000-0x000000007FC10000-memory.dmp

Filesize
64KB

Download
memory/2996-83-0x0000000002260000-0x0000000002270000-memory.dmp

Filesize
64KB

Download
memory/4768-4-0x00000000058B0000-0x00000000058C0000-memory.dmp

Filesize
64KB

Download
memory/4768-7-0x0000000006F50000-0x0000000006F58000-memory.dmp

Filesize
32KB

Download
memory/4768-9-0x0000000007400000-0x00000000074B8000-memory.dmp

Filesize
736KB

Download
memory/4768-6-0x0000000005C60000-0x0000000005C78000-memory.dmp

Filesize
96KB

Download
memory/4768-10-0x0000000009740000-0x00000000097DC000-memory.dmp

Filesize
624KB

Download
memory/4768-5-0x00000000058E0000-0x00000000058EA000-memory.dmp

Filesize
40KB

Download
memory/4768-8-0x0000000006F60000-0x0000000006F6A000-memory.dmp

Filesize
40KB

Download
memory/4768-0-0x0000000000DE0000-0x0000000000EF0000-memory.dmp

Filesize
1.1MB

Download
memory/4768-3-0x0000000005900000-0x0000000005992000-memory.dmp

Filesize
584KB

Download
memory/4768-24-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4768-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/4768-47-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4768-1-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4796-60-0x000000007F520000-0x000000007F530000-memory.dmp

Filesize
64KB

Download
memory/4796-19-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4796-95-0x0000000007310000-0x0000000007318000-memory.dmp

Filesize
32KB

Download
memory/4796-101-0x0000000075320000-0x0000000075AD0000-memory.dmp

Filesize
7.7MB

Download
memory/4796-93-0x00000000072D0000-0x00000000072E4000-memory.dmp

Filesize
80KB

Download
memory/4796-91-0x0000000007170000-0x0000000007181000-memory.dmp

Filesize
68KB

Download
memory/4796-89-0x0000000006FE0000-0x0000000006FEA000-memory.dmp

Filesize
40KB

Download
memory/4796-87-0x00000000075B0000-0x0000000007C2A000-memory.dmp

Filesize
6.5MB

Download
memory/4796-85-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

Filesize
64KB

Download
memory/4796-84-0x0000000006E10000-0x0000000006EB3000-memory.dmp

Filesize
652KB

Download
memory/4796-74-0x00000000061F0000-0x000000000620E000-memory.dmp

Filesize
120KB

Download
memory/4796-62-0x0000000073DD0000-0x0000000073E1C000-memory.dmp

Filesize
304KB

Download
memory/4796-61-0x0000000006210000-0x0000000006242000-memory.dmp

Filesize
200KB

Download
memory/4796-22-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

Filesize
64KB

Download
memory/4796-21-0x0000000004AB0000-0x0000000004AC0000-memory.dmp

Filesize
64KB

Download
memory/4796-28-0x0000000004FB0000-0x0000000005016000-memory.dmp

Filesize
408KB

Download
memory/4796-41-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download