remcos | f4eaa74eb268a58cff6f5d37607758bd49cc00af060da799857ae10cfd59efb2

General

Target

TSTS 0005A.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

C2

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
Suspicious use of SetThreadContext 1 IoCs

Processes:

TSTS 0005A.exe

description pid process target process

PID 2132 set thread context of 1252 2132 TSTS 0005A.exe TSTS 0005A.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

2644 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2584 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2584 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

TSTS 0005A.exe

pid process

1252 TSTS 0005A.exe

description	pid	process	target process
PID 2132 set thread context of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe

pid	process
2644	schtasks.exe

pid	process
2584	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2584	powershell.exe

pid	process
1252	TSTS 0005A.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

TSTS 0005A.exe

description	pid	process	target process
PID 2132 wrote to memory of 2584	2132	TSTS 0005A.exe	powershell.exe
PID 2132 wrote to memory of 2584	2132	TSTS 0005A.exe	powershell.exe
PID 2132 wrote to memory of 2584	2132	TSTS 0005A.exe	powershell.exe
PID 2132 wrote to memory of 2584	2132	TSTS 0005A.exe	powershell.exe
PID 2132 wrote to memory of 2644	2132	TSTS 0005A.exe	schtasks.exe
PID 2132 wrote to memory of 2644	2132	TSTS 0005A.exe	schtasks.exe
PID 2132 wrote to memory of 2644	2132	TSTS 0005A.exe	schtasks.exe
PID 2132 wrote to memory of 2644	2132	TSTS 0005A.exe	schtasks.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe
PID 2132 wrote to memory of 1252	2132	TSTS 0005A.exe	TSTS 0005A.exe

C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.exe
"C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2132

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:2584

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vcEDbAjawlTHE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp53FA.tmp"
2⤵
- Creates scheduled task(s)
PID:2644

C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.exe
"C:\Users\Admin\AppData\Local\Temp\TSTS 0005A.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp53FA.tmp

Filesize
1KB

MD5
cc01a42697ae94295ae2a6af635d9bd4

SHA1
963860d791fc394facb7fb425c1d3b8f414afe69

SHA256
e3c9ab5434eeebb5e5ddcdcacfdd7dbe3317db31f287a171601c4ebd46cfc330

SHA512
6ee0602b6c04b912d9e0facc046d86ed18ee65f57e4cda3c721f1da17eb6c650e94b135d72be086b77705a9011e86682d38cd2dca7788af2bb067654de63f18a

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

Filesize
144B

MD5
12ff5ee42c35fa3c4a6000e273f9ab8e

SHA1
1966e9134ba83967ab9646044d015e01131dc8aa

SHA256
10f1f6448cd1f696783456b631c95c761849cfec1e91d7f940246c4d862ace66

SHA512
99511f86b6a2b50c9c76041d072e2b21b438c88d5669bce86e3c3bdaeaa4153f06bcefac7148986646a5f66ea809ba5c1e09096a52ee8c615210680f6555ca75

Download Submit
memory/1252-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1252-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1252-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2132-5-0x0000000005410000-0x00000000054D0000-memory.dmp

Filesize
768KB

Download
memory/2132-0-0x0000000001050000-0x0000000001138000-memory.dmp

Filesize
928KB

Download
memory/2132-1-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2132-3-0x00000000004D0000-0x00000000004E0000-memory.dmp

Filesize
64KB

Download
memory/2132-4-0x0000000000530000-0x000000000053C000-memory.dmp

Filesize
48KB

Download
memory/2132-2-0x00000000006B0000-0x00000000006F0000-memory.dmp

Filesize
256KB

Download
memory/2132-33-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2584-42-0x000000006EC90000-0x000000006F23B000-memory.dmp

Filesize
5.7MB

Download
memory/2584-41-0x00000000029E0000-0x0000000002A20000-memory.dmp

Filesize
256KB

Download
memory/2584-40-0x000000006EC90000-0x000000006F23B000-memory.dmp

Filesize
5.7MB

Download
memory/2584-38-0x000000006EC90000-0x000000006F23B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads