remcos | 93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb

General

Target

93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Size

1.1MB
MD5

3f766e54beacede430e771392a6083e0
SHA1

4b90821c7fea37d6f321165a7335abec518c12b9
SHA256

93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb
SHA512

1310db5e715c73ade14eeb4e30bef8425a2634072fa87c3509adbd24b92b3a0bb9347a6457940a77883b0eff842821f70ccf8a6e59a7c231d9cf2f24c69fd21d
SSDEEP

24576:eaTgKwZ14X27uUL3VM0kd+rkhfMsjgkAj2JE06J5N0Fs:LTgdZOcuUL3xAx/8b2S7Z0q

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

Executes dropped EXE 2 IoCs

pid	Process
2644	AboutSettingsHandlers.exe
2932	AboutSettingsHandlers.exe

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/3060-20-0x00000000003F0000-0x0000000000579000-memory.dmp	autoit_exe
behavioral1/memory/3060-25-0x00000000003F0000-0x0000000000579000-memory.dmp	autoit_exe
behavioral1/memory/2644-42-0x00000000001D0000-0x0000000000359000-memory.dmp	autoit_exe
behavioral1/memory/2644-44-0x00000000001D0000-0x0000000000359000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3060 set thread context of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 2644 set thread context of 2932	2644	AboutSettingsHandlers.exe	36

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 5 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	AboutSettingsHandlers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2112	schtasks.exe
2704	schtasks.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2332	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 3060 wrote to memory of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 3060 wrote to memory of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 3060 wrote to memory of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 3060 wrote to memory of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 3060 wrote to memory of 2332	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	31
PID 3060 wrote to memory of 2112	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	32
PID 3060 wrote to memory of 2112	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	32
PID 3060 wrote to memory of 2112	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	32
PID 3060 wrote to memory of 2112	3060	93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe	32
PID 2940 wrote to memory of 2644	2940	taskeng.exe	35
PID 2940 wrote to memory of 2644	2940	taskeng.exe	35
PID 2940 wrote to memory of 2644	2940	taskeng.exe	35
PID 2940 wrote to memory of 2644	2940	taskeng.exe	35
PID 2644 wrote to memory of 2932	2644	AboutSettingsHandlers.exe	36
PID 2644 wrote to memory of 2932	2644	AboutSettingsHandlers.exe	36
PID 2644 wrote to memory of 2932	2644	AboutSettingsHandlers.exe	36
PID 2644 wrote to memory of 2932	2644	AboutSettingsHandlers.exe	36
PID 2644 wrote to memory of 2932	2644	AboutSettingsHandlers.exe	36
PID 2644 wrote to memory of 2932	2644	AboutSettingsHandlers.exe	36
PID 2644 wrote to memory of 2704	2644	AboutSettingsHandlers.exe	37
PID 2644 wrote to memory of 2704	2644	AboutSettingsHandlers.exe	37
PID 2644 wrote to memory of 2704	2644	AboutSettingsHandlers.exe	37
PID 2644 wrote to memory of 2704	2644	AboutSettingsHandlers.exe	37

C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
"C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe
  "C:\Users\Admin\AppData\Local\Temp\93b68cbc8c600420b74e900c619dff226cacc382ab4daf5cd63142cd5d28f7cb.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2332
- 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:2112

C:\Windows\system32\taskeng.exe
taskeng.exe {07309B03-548E-4BB8-B737-5DD9A6CC86AD} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2644
- - C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe
    "C:\Users\Admin\AppData\Roaming\UIMgrBroker\AboutSettingsHandlers.exe"
    3⤵
    - Executes dropped EXE
    PID:2932
- - 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
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2704

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

System Information Discovery

1

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\UIMgrBroker\AboutSettingsHandlers.exe

Filesize
1.1MB

MD5
b15205fbb36a9268c7227202f2d4d1f2

SHA1
ae3f2451f3f1699af28ab8d7ca66f8553441f018

SHA256
fad25dbbedc435bfa680f6587c262d827bdf950738770354e627633d57ca7e2c

SHA512
c98511af8c55f5ad4aea9c7bff5b5ce633b45eb256229b835e316b897c9964842903feda112113ad2db57fe1bc90bbdfe8cf6d60ec798c78b39212a048abc524

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

Filesize
79B

MD5
e21dc7b475f1008549909fdd1f955063

SHA1
87f29c82ec42284f6eae7d2a2dc29fe3d41972cc

SHA256
4d1dc2dabe1fa0612aad58263967fffa3226a3de1561196b57e81f7918ac8141

SHA512
13fcb1bd8a07707b768a44919d6735abd7799baa395ecb59b6a29c270ec68ef4f09fbe18532873c26465583f77a2daae6b7d55d472e1381157e1258a7016bdea

Download Submit
memory/2332-3-0x0000000000070000-0x0000000000090000-memory.dmp

Filesize
128KB

Download
memory/2332-5-0x0000000000070000-0x0000000000090000-memory.dmp

Filesize
128KB

Download
memory/2332-15-0x0000000000070000-0x0000000000090000-memory.dmp

Filesize
128KB

Download
memory/2332-11-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2332-19-0x0000000000070000-0x0000000000090000-memory.dmp

Filesize
128KB

Download
memory/2332-16-0x0000000000070000-0x0000000000090000-memory.dmp

Filesize
128KB

Download
memory/2644-29-0x00000000001D0000-0x0000000000359000-memory.dmp

Filesize
1.5MB

Download
memory/2644-42-0x00000000001D0000-0x0000000000359000-memory.dmp

Filesize
1.5MB

Download
memory/2644-44-0x00000000001D0000-0x0000000000359000-memory.dmp

Filesize
1.5MB

Download
memory/2932-37-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/3060-0-0x00000000003F0000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/3060-14-0x0000000002770000-0x00000000028F9000-memory.dmp

Filesize
1.5MB

Download
memory/3060-20-0x00000000003F0000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/3060-25-0x00000000003F0000-0x0000000000579000-memory.dmp

Filesize
1.5MB

Download
memory/3060-2-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/3060-1-0x0000000000070000-0x0000000000073000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads