remcos | fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10

General

Target

fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe
Size

2.2MB
MD5

af93dd6cc5dcf4d84950f296ccbe4a19
SHA1

8ff528fcfcea557f461ac046cafa3e364bc0354b
SHA256

fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10
SHA512

453d18055526a5c369140e96df1af2d8cf4a72356e5666b457d34684bf38263f860829cf2d267e9092956ca0924e9851f83e0e484b4618dd0a4a70cadebbb095
SSDEEP

49152:6yBbr7vbgHi2HARwTxd2ePCB1827bzQfIyo0:6yBbrbbgiqKLbz9T0

Score

10^/10

remcos remotehost discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

193.142.146.21:2404

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-7Q40R7
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\InternetClient = "C:\\Users\\Admin\\Pictures\\InternetClient\\BugReporter.exe"	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.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	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 4440	3004	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe	94
PID 3004 wrote to memory of 4440	3004	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe	94
PID 3004 wrote to memory of 4440	3004	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe	94
PID 3004 wrote to memory of 4440	3004	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe	94
PID 3004 wrote to memory of 4440	3004	fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe	94

C:\Users\Admin\AppData\Local\Temp\fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe
"C:\Users\Admin\AppData\Local\Temp\fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\AppData\Local\Temp\fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe
  "C:\Users\Admin\AppData\Local\Temp\fcf6c5439a60d864caef274b035c5238a7dbb81e3a819e93b9e16643f7586f10.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

memory/3004-0-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-2-0x000000000040D000-0x0000000000426000-memory.dmp

Filesize
100KB

Download
memory/3004-1-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-5-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-6-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-4-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-3-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-9-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-8-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3004-21-0x000000000040D000-0x0000000000426000-memory.dmp

Filesize
100KB

Download
memory/4440-12-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-17-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-11-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-13-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-14-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/4440-15-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-16-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-7-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-19-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-10-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-22-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-23-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-24-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-25-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-30-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download
memory/4440-31-0x0000000000680000-0x0000000000702000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads