remcos | 303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff

General

Target

303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe
Size

604KB
MD5

fbcf58f9ce64d200379298fcd87aa56b
SHA1

74388b7d29b042a1dabfeda00066eda76a9cf348
SHA256

303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff
SHA512

3873f23e8a350b812f7edb6770cc625604a877d658453ddd4f4a84b975d88dbbfb19c071a1f089eeb21fb524edd8bdd395aa5e8b484b87ce29480e9ca39e32df
SSDEEP

12288:MLKzlyrLuJygHZ8C2V3Oliayg2Mj1ngA+0mqwgqi59CU:uIyrCJygn2ZOlX1nz3wgqiHr

Score

10^/10

remcos remotehost12 discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost12

C2

rem24251mr.duckdns.org:24251

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-P0KZ2Q
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

description	pid	Process	procid_target
PID 4360 set thread context of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 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	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4736	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87
PID 4360 wrote to memory of 4736	4360	303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe	87

C:\Users\Admin\AppData\Local\Temp\303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe
"C:\Users\Admin\AppData\Local\Temp\303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Users\Admin\AppData\Local\Temp\303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe
  "C:\Users\Admin\AppData\Local\Temp\303e415db0644366a316524070b046b1b2a5dd2441258d6295859abc74f352ff.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

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
284da4704f691887bbb50fd49ddb2301

SHA1
4aebdf0259d563a3ad37cfdc920e167eb25b061e

SHA256
c0c397085f6363dbb72f6b207514e3e106d46e392a229f9dd1e1ca4d7cc14cfb

SHA512
20a991023a7c9c886aee2391663279fbd5437f530eca9f54702b3770d93656bf162f76a48fecd785c4bc934d64278d724451795a4988dfe393373641811693a2

Download Submit
memory/4360-0-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

Filesize
4KB

Download
memory/4360-1-0x0000000000E70000-0x0000000000F0C000-memory.dmp

Filesize
624KB

Download
memory/4360-2-0x0000000005E20000-0x00000000063C4000-memory.dmp

Filesize
5.6MB

Download
memory/4360-3-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/4360-4-0x00000000058E0000-0x0000000005976000-memory.dmp

Filesize
600KB

Download
memory/4360-5-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/4360-6-0x0000000005980000-0x000000000598A000-memory.dmp

Filesize
40KB

Download
memory/4360-8-0x00000000059B0000-0x00000000059BA000-memory.dmp

Filesize
40KB

Download
memory/4360-7-0x0000000005BC0000-0x0000000005C5C000-memory.dmp

Filesize
624KB

Download
memory/4360-18-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/4736-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-10-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-61-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4736-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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