remcos | 52e5414e2e8aabecfc1c38926a3d863e1ee26bef5dc8453fc0568d9f263cf384

General

Target

354b34a3694e2b4d54ba3bca624aa3c3.exe
Size

1.2MB
MD5

354b34a3694e2b4d54ba3bca624aa3c3
SHA1

660ee183f7f7a17eace0556c8883a2c361424cb0
SHA256

52e5414e2e8aabecfc1c38926a3d863e1ee26bef5dc8453fc0568d9f263cf384
SHA512

f78bbbd45ee9dc147394f79c0aed2c8104c42116b72c653586ac0855d0c075e3b17571bc62e33ba055bcc91197f6e2a491e97ad35eab8f425bbf713a5e0b5870
SSDEEP

24576:+tb20pkaCqT5TBWgNQ7aLHWD2rmiOWlcIqDBZLAkxy06A:rVg5tQ7aLHWDd/B9A65

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

spacesave.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
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-RLABK3
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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\dddddd.vbs	dddddd.exe

Executes dropped EXE 1 IoCs

pid	Process
716	dddddd.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x00050000000226f8-15.dat	autoit_exe

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	354b34a3694e2b4d54ba3bca624aa3c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dddddd.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3352	354b34a3694e2b4d54ba3bca624aa3c3.exe
3352	354b34a3694e2b4d54ba3bca624aa3c3.exe
716	dddddd.exe
716	dddddd.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
3352	354b34a3694e2b4d54ba3bca624aa3c3.exe
3352	354b34a3694e2b4d54ba3bca624aa3c3.exe
716	dddddd.exe
716	dddddd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3352 wrote to memory of 716	3352	354b34a3694e2b4d54ba3bca624aa3c3.exe	89
PID 3352 wrote to memory of 716	3352	354b34a3694e2b4d54ba3bca624aa3c3.exe	89
PID 3352 wrote to memory of 716	3352	354b34a3694e2b4d54ba3bca624aa3c3.exe	89

C:\Users\Admin\AppData\Local\Temp\354b34a3694e2b4d54ba3bca624aa3c3.exe
"C:\Users\Admin\AppData\Local\Temp\354b34a3694e2b4d54ba3bca624aa3c3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3352
- C:\Users\Admin\AppData\Local\directory\dddddd.exe
  "C:\Users\Admin\AppData\Local\Temp\354b34a3694e2b4d54ba3bca624aa3c3.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:716

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\definitization

Filesize
56KB

MD5
be57919a8e6f5c3d638c08144dfff614

SHA1
a096881aaea02eecc45536e041050cf08917b433

SHA256
88b06124dd503e93614f8dc3fd011565c949e2a36ecb44c0a9de685465330167

SHA512
8c6154154f3ee2ed6d19b6527f89ae3279fc64b0489baf415b1779cbe2af12d4f4cac2fd67e2c57a825639f86e8b4a72ca2ead831fe93bc90141a013bb4bbcf5

Download Submit
C:\Users\Admin\AppData\Local\Temp\palladize

Filesize
483KB

MD5
f4461a02e25109973cdf62c9260edc73

SHA1
988eaf6cf392bc92f09c514a99db3b44bd9d0450

SHA256
35317bf8ab08c12751490059e9af81b8226b013401e9906ad109e49c1924d13f

SHA512
f6d86a3f8702d89acc1c4cb63fbd81d03a8f86d8f43ce1a244343b59b6121416420c421e10830675dd970d97064ab2b7b422b60fe2658b263daf12f2932707dc

Download Submit
C:\Users\Admin\AppData\Local\directory\dddddd.exe

Filesize
1.2MB

MD5
354b34a3694e2b4d54ba3bca624aa3c3

SHA1
660ee183f7f7a17eace0556c8883a2c361424cb0

SHA256
52e5414e2e8aabecfc1c38926a3d863e1ee26bef5dc8453fc0568d9f263cf384

SHA512
f78bbbd45ee9dc147394f79c0aed2c8104c42116b72c653586ac0855d0c075e3b17571bc62e33ba055bcc91197f6e2a491e97ad35eab8f425bbf713a5e0b5870

Download Submit
memory/716-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/716-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3352-11-0x0000000002800000-0x0000000002804000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing