remcos | 48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc

General

Target

48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe
Size

1.1MB
MD5

dafcfed9161fe8d8b94411d3a91011a0
SHA1

dd7512cf13d9bed6ce487a5183e660132171706e
SHA256

48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc
SHA512

5edcb707c63dd1210ee22f6db24d4e4c3813dba53d1d980fe555d8f19059c0f27a2cc8158fdd6d1e68c150f6b56de611326fe029166cdcef5f4635ed3ec0194c
SSDEEP

24576:eaTgKwZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fl:LTgdZOcuUL3xAx/8b2S7Z0P

Score

10^/10

remcos chinemerem discovery rat

Malware Config

Extracted

Family

remcos

Version

2.2.2 Pro

Botnet

chinemerem

C2

remcoss.onmypc.org:3765

Attributes

audio_folder
audio
audio_path
%AppData%
audio_record_time
5
connect_delay
0
connect_interval
5
copy_file
remcos.exe
copy_folder
remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
install_path
%AppData%
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
r-8ET8H0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-814918696-1585701690-3140955116-1000\Control Panel\International\Geo\Nation	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2416-16-0x0000000000440000-0x00000000005C9000-memory.dmp	autoit_exe
behavioral2/memory/2416-21-0x0000000000440000-0x00000000005C9000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2416 set thread context of 1248	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	91

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	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5116	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1248	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 1248	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	91
PID 2416 wrote to memory of 1248	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	91
PID 2416 wrote to memory of 1248	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	91
PID 2416 wrote to memory of 1248	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	91
PID 2416 wrote to memory of 1248	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	91
PID 2416 wrote to memory of 5116	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	97
PID 2416 wrote to memory of 5116	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	97
PID 2416 wrote to memory of 5116	2416	48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe	97

C:\Users\Admin\AppData\Local\Temp\48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe
"C:\Users\Admin\AppData\Local\Temp\48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2416
- C:\Users\Admin\AppData\Local\Temp\48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe
  "C:\Users\Admin\AppData\Local\Temp\48b2462f1065d6d9129c40da1ed57a68e67b3bddfea1a69ac5bff6466e9298bc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1248
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn SystemSettingsAdminFlows /tr "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\remcos\logs.dat

Filesize
79B

MD5
f04640ea3f1e00f4e6c115e716987a2f

SHA1
73a33373fbf0dd191115f51966584e50eb2530b9

SHA256
a0a1c17aa0695782add39b25f55743b8d79b219b6729e8f3a21007cebc06c545

SHA512
4bd860067f55d99e080137e3f27511cadb5dbd854f46cddac1d8a8435ec195fcb60f3a7f3373495fcf0744b9956da783a4b37e4e3d3f4f5155d637f1164a251e

Download Submit
memory/1248-3-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1248-10-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1248-11-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1248-14-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/2416-0-0x0000000000440000-0x00000000005C9000-memory.dmp

Filesize
1.5MB

Download
memory/2416-1-0x0000000000B30000-0x0000000000B33000-memory.dmp

Filesize
12KB

Download
memory/2416-2-0x0000000000C40000-0x0000000000C41000-memory.dmp

Filesize
4KB

Download
memory/2416-15-0x0000000000B30000-0x0000000000B33000-memory.dmp

Filesize
12KB

Download
memory/2416-16-0x0000000000440000-0x00000000005C9000-memory.dmp

Filesize
1.5MB

Download
memory/2416-21-0x0000000000440000-0x00000000005C9000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads