remcos | 3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12

General

Target

3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
Size

1.4MB
MD5

a7d556fe55e0e65a90ae6736f8b5b2ef
SHA1

8515062d32f240af1e1a30de58eaa9dc9010eff2
SHA256

3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12
SHA512

e05b9a3dc6e2a0f77d748bf75977e0924c1a5f532418baa923d0428fd3657cb197855ff79f7c86ebd52c4d8a69b4456142b46eb78c035424ef79f052e6838a7e
SSDEEP

24576:ZqDEvCTbMWu7rQYlBQcBiT6rprG8aAyGyH4ImIbDA1p4nHdPf:ZTvC/MTQYxsWR7aAy/BmRH4H9

Score

10^/10

remcos remotehost discovery rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

23.95.235.18:2557

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-E0JKXE
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

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	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
2032	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
2032	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
2032	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
2032	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4132 wrote to memory of 2032	4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe	87
PID 4132 wrote to memory of 2032	4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe	87
PID 4132 wrote to memory of 2032	4132	3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe	87

C:\Users\Admin\AppData\Local\Temp\3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
"C:\Users\Admin\AppData\Local\Temp\3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4132
- C:\Users\Admin\AppData\Local\Temp\3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe
  "C:\Users\Admin\AppData\Local\Temp\3586e5e3fdaa6b183e26aa6cf314db1143b1fc128d753fc712fa2eb3b3447b12.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:2032

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:\Users\Admin\AppData\Local\Temp\Roca

Filesize
84KB

MD5
20a9eb8ab45e5dcc0ea05a32b474e1d0

SHA1
fdbc8728d16d9231bac3df212a6e5e3c89733aec

SHA256
f89baef54fb11e5dab9e289562ed2a043fc57539f128ad1b40afbd5557a3db0c

SHA512
fdd9416e8da620190dc3e4ee870c70cccad11cc3cfe1977a3bd516df9c24511f5eb98e8852cef3b6f5923d06baf7747018fdde7f7f0dd3d805d719689082f540

Download Submit
memory/2032-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2032-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4132-11-0x00000000038D0000-0x00000000038D4000-memory.dmp

Filesize
16KB

Download

Analysis

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