remcos | f4eaa74eb268a58cff6f5d37607758bd49cc00af060da799857ae10cfd59efb2

Analysis

max time kernel
151s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
05-04-2024 09:51

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General

Target

TSTS 0005A.bat.exe
Size

922KB
MD5

b195643d6d8c3f81c7409533ad14726c
SHA1

c09b56928fb1f448ed9b3610a0b930f77e2ebcfe
SHA256

f4eaa74eb268a58cff6f5d37607758bd49cc00af060da799857ae10cfd59efb2
SHA512

b843153f581be5a77b8575cf09e25333d5eaf5af3b689441ad0af336c4494a6181d5882dfa8b2ba2d90acb64cd3db9ab26f1cf87e1991f996d26cbb6990c5fb8
SSDEEP

24576:JgjHr6DLW5Gaxs00MUVXdtS6seDmw+Op8lCua51:WrpDxclG65mg8lCuo

Score

10^/10

remcos remotehost rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

sembe.duckdns.org:14645

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
true
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
notess
keylog_path
%AppData%
mouse_option
false
mutex
Rmc-P0AEMX
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:

TSTS 0005A.bat.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	TSTS 0005A.bat.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

TSTS 0005A.bat.exe

description pid process target process

PID 4984 set thread context of 3396 4984 TSTS 0005A.bat.exe TSTS 0005A.bat.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

3268 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

4760 powershell.exe
4760 powershell.exe
4760 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 4760 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

TSTS 0005A.bat.exe

pid process

3396 TSTS 0005A.bat.exe

description	pid	process	target process
PID 4984 set thread context of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe

pid	process
3268	schtasks.exe

pid	process
4760	powershell.exe
4760	powershell.exe
4760	powershell.exe

description	pid	process
Token: SeDebugPrivilege	4760	powershell.exe

pid	process
3396	TSTS 0005A.bat.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

TSTS 0005A.bat.exe

description	pid	process	target process
PID 4984 wrote to memory of 4760	4984	TSTS 0005A.bat.exe	powershell.exe
PID 4984 wrote to memory of 4760	4984	TSTS 0005A.bat.exe	powershell.exe
PID 4984 wrote to memory of 4760	4984	TSTS 0005A.bat.exe	powershell.exe
PID 4984 wrote to memory of 3268	4984	TSTS 0005A.bat.exe	schtasks.exe
PID 4984 wrote to memory of 3268	4984	TSTS 0005A.bat.exe	schtasks.exe
PID 4984 wrote to memory of 3268	4984	TSTS 0005A.bat.exe	schtasks.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe
PID 4984 wrote to memory of 3396	4984	TSTS 0005A.bat.exe	TSTS 0005A.bat.exe

C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.bat.exe
"C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.bat.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4984

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vcEDbAjawlTHE.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4760

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vcEDbAjawlTHE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2E6E.tmp"
2⤵
- Creates scheduled task(s)
PID:3268

C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.bat.exe
"C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.bat.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:3396

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 --no-appcompat-clear --mojo-platform-channel-handle=1728 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:2808

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2mmv2wxe.hb5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2E6E.tmp

Filesize
1KB

MD5
85fff6f00190e244547d6a87c9bd5246

SHA1
7cff4e97234ce693ef3fdec84b4f09ab804e432f

SHA256
e6f86c0f3a94d895f608350fc2173b251ea8a65b345972fe8c7dc9c1ca777e8a

SHA512
e3ba5667025e61effa675eb2300e28d1e498096af55afd070af60b2b314fa549f003218b6a1da6a1266ee452ea728c0f5a71048bc6ac538d66c920394678290b

Download Submit
C:\Users\Admin\AppData\Roaming\notess\logs.dat

Filesize
144B

MD5
9fa57347b96bb7ac11a68cbbe8b767e4

SHA1
29c14df058780bf4e5eef7b99f88a647ebe0ddaa

SHA256
576d6aac001d0c206ce1b6f798b183f0a0f6d857b7ee61105ed06a81de2ad714

SHA512
c6b4b3f9fb1d41150a333ed0688191a677054ee7f72c05bcec4a389bb6d061ca84730529788872a5d0731f58510e8f3051068b8c4f21c83204e215f53dd380e9

Download Submit
memory/3396-96-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-95-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-88-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-87-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-104-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-112-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3396-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4760-43-0x0000000005B50000-0x0000000005EA4000-memory.dmp

Filesize
3.3MB

Download
memory/4760-68-0x0000000007490000-0x00000000074AA000-memory.dmp

Filesize
104KB

Download
memory/4760-14-0x0000000004B30000-0x0000000004B66000-memory.dmp

Filesize
216KB

Download
memory/4760-26-0x0000000005110000-0x0000000005132000-memory.dmp

Filesize
136KB

Download
memory/4760-30-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/4760-20-0x0000000002660000-0x0000000002670000-memory.dmp

Filesize
64KB

Download
memory/4760-80-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4760-19-0x0000000002660000-0x0000000002670000-memory.dmp

Filesize
64KB

Download
memory/4760-45-0x0000000006180000-0x000000000619E000-memory.dmp

Filesize
120KB

Download
memory/4760-46-0x00000000064B0000-0x00000000064FC000-memory.dmp

Filesize
304KB

Download
memory/4760-17-0x00000000051A0000-0x00000000057C8000-memory.dmp

Filesize
6.2MB

Download
memory/4760-77-0x00000000077B0000-0x00000000077B8000-memory.dmp

Filesize
32KB

Download
memory/4760-15-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4760-52-0x0000000002660000-0x0000000002670000-memory.dmp

Filesize
64KB

Download
memory/4760-53-0x000000007F100000-0x000000007F110000-memory.dmp

Filesize
64KB

Download
memory/4760-54-0x0000000007150000-0x0000000007182000-memory.dmp

Filesize
200KB

Download
memory/4760-65-0x0000000006730000-0x000000000674E000-memory.dmp

Filesize
120KB

Download
memory/4760-55-0x0000000070A10000-0x0000000070A5C000-memory.dmp

Filesize
304KB

Download
memory/4760-66-0x0000000007190000-0x0000000007233000-memory.dmp

Filesize
652KB

Download
memory/4760-27-0x0000000005940000-0x00000000059A6000-memory.dmp

Filesize
408KB

Download
memory/4760-67-0x0000000007AD0000-0x000000000814A000-memory.dmp

Filesize
6.5MB

Download
memory/4760-69-0x0000000007500000-0x000000000750A000-memory.dmp

Filesize
40KB

Download
memory/4760-70-0x0000000007710000-0x00000000077A6000-memory.dmp

Filesize
600KB

Download
memory/4760-71-0x0000000007690000-0x00000000076A1000-memory.dmp

Filesize
68KB

Download
memory/4760-74-0x00000000076C0000-0x00000000076CE000-memory.dmp

Filesize
56KB

Download
memory/4760-75-0x00000000076D0000-0x00000000076E4000-memory.dmp

Filesize
80KB

Download
memory/4760-76-0x00000000077D0000-0x00000000077EA000-memory.dmp

Filesize
104KB

Download
memory/4984-18-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4984-0-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4984-25-0x00000000747C0000-0x0000000074F70000-memory.dmp

Filesize
7.7MB

Download
memory/4984-9-0x0000000009640000-0x00000000096DC000-memory.dmp

Filesize
624KB

Download
memory/4984-8-0x0000000006F60000-0x0000000007020000-memory.dmp

Filesize
768KB

Download
memory/4984-7-0x0000000005C30000-0x0000000005C3C000-memory.dmp

Filesize
48KB

Download
memory/4984-6-0x0000000005A80000-0x0000000005A90000-memory.dmp

Filesize
64KB

Download
memory/4984-5-0x00000000058D0000-0x00000000058DA000-memory.dmp

Filesize
40KB

Download
memory/4984-4-0x0000000005B20000-0x0000000005B30000-memory.dmp

Filesize
64KB

Download
memory/4984-3-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/4984-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

Filesize
5.6MB

Download
memory/4984-1-0x0000000000D50000-0x0000000000E38000-memory.dmp

Filesize
928KB

Download