remcos | 9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7

General

Target

9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe
Size

469KB
MD5

38cd9d961899ca26a5f29302fe5f8578
SHA1

f8758cc94c56600129bedc1679e104fb85214df2
SHA256

9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7
SHA512

dd7963c1304633d1e1894fd0bce3922a34e43ce4f7e89560664b8633e6bd44ee6354e80dc7eb4516bf1c15728b5b159711dc3727eef9ab3841f967a15ec4d070
SSDEEP

12288:Omnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSzn9:2iLJbpI7I2WhQqZ7z9

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

firsyt205919-46453.portmap.host:46453

Attributes

audio_folder
MicRecords
audio_path
%SystemDrive%
audio_record_time
1
connect_delay
0
connect_interval
1
copy_file
svchost
copy_folder
winstart
delete_file
false
hide_file
true
hide_keylog_file
false
install_flag
true
install_path
%SystemDrive%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-UKCG09
screenshot_crypt
true
screenshot_flag
true
screenshot_folder
Screenshots
screenshot_path
%WinDir%\System32
screenshot_time
10
startup_value
Remcos
take_screenshot_option
true
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Remcos = "\"C:\\winstart\\svchost\""	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\winstart\\svchost\""	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Remcos = "\"C:\\winstart\\svchost\""	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2576	2128	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe	30
PID 2128 wrote to memory of 2576	2128	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe	30
PID 2128 wrote to memory of 2576	2128	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe	30
PID 2128 wrote to memory of 2576	2128	9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe	30
PID 2576 wrote to memory of 2120	2576	WScript.exe	31
PID 2576 wrote to memory of 2120	2576	WScript.exe	31
PID 2576 wrote to memory of 2120	2576	WScript.exe	31
PID 2576 wrote to memory of 2120	2576	WScript.exe	31

C:\Users\Admin\AppData\Local\Temp\9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe
"C:\Users\Admin\AppData\Local\Temp\9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c "C:\winstart\svchost"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

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\install.vbs

Filesize
360B

MD5
88a2f09ebe2d07e23dbe996aabe0aa78

SHA1
e267897e618fac1799dce83112e39a123a1b46b5

SHA256
c3abd7ce6b5d62cbdfb04d8521bbd0496ef8270178d888990d36dd3809de95f3

SHA512
b6d1d968e3f428b52b17fcd33fd2eb814dc099d4a25470cb853904a560b9b2b07aba417e4af5e15359aa042ead8dc21bb188e6fca693d6dc24fc418028b041cc

Download Submit
C:\winstart\svchost

Filesize
469KB

MD5
38cd9d961899ca26a5f29302fe5f8578

SHA1
f8758cc94c56600129bedc1679e104fb85214df2

SHA256
9ec43262d9fdce8ece6caa9a4c4341b82a64d72495bcc2888fb6f8094c0560f7

SHA512
dd7963c1304633d1e1894fd0bce3922a34e43ce4f7e89560664b8633e6bd44ee6354e80dc7eb4516bf1c15728b5b159711dc3727eef9ab3841f967a15ec4d070

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads