remcos | 3cb1699933aa7720a32dfffd31421327f60a95a8b13c071abe820702f526aeae

General

Target

68172e58d52139fbf43cfe69f52b3088.exe
Size

4.9MB
MD5

68172e58d52139fbf43cfe69f52b3088
SHA1

e8c44733ceb5705bb5e93779f1282cedf5df892a
SHA256

3cb1699933aa7720a32dfffd31421327f60a95a8b13c071abe820702f526aeae
SHA512

dfc60e37fd55c7696a7ba3f2460d8c378757ebf158de9cd8f5b7845ac180c33955932541dc95a4d4eba1325a25c060d6d98513072c79253390c0176f7a639ea4
SSDEEP

49152:6Sq2zkGQxfkScRdpWPNGgPJwgAeaq+UMnSFPyqn/diqejpFfGj4309+eZypv0rM2:6StzEl9xypvogUuuhxYbkqFWCMK8D

Score

10^/10

remcos los breee discovery persistence rat

Malware Config

Extracted

Family

remcos

Botnet

LOS BREEE

C2

gilbertomartinezlora09.con-ip.com:1880

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-4RS6G7
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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ResDesignerEditor = "C:\\Users\\Admin\\Music\\ResDesignerUpdater\\ResVideo.exe"	68172e58d52139fbf43cfe69f52b3088.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	68172e58d52139fbf43cfe69f52b3088.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	68172e58d52139fbf43cfe69f52b3088.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3856	68172e58d52139fbf43cfe69f52b3088.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 3856	3928	68172e58d52139fbf43cfe69f52b3088.exe	85
PID 3928 wrote to memory of 3856	3928	68172e58d52139fbf43cfe69f52b3088.exe	85
PID 3928 wrote to memory of 3856	3928	68172e58d52139fbf43cfe69f52b3088.exe	85
PID 3928 wrote to memory of 3856	3928	68172e58d52139fbf43cfe69f52b3088.exe	85
PID 3928 wrote to memory of 3856	3928	68172e58d52139fbf43cfe69f52b3088.exe	85

C:\Users\Admin\AppData\Local\Temp\68172e58d52139fbf43cfe69f52b3088.exe
"C:\Users\Admin\AppData\Local\Temp\68172e58d52139fbf43cfe69f52b3088.exe"
1⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3928
- C:\Users\Admin\AppData\Local\Temp\68172e58d52139fbf43cfe69f52b3088.exe
  "C:\Users\Admin\AppData\Local\Temp\68172e58d52139fbf43cfe69f52b3088.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3856

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

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
b2d6588626b9cb998af7851328059782

SHA1
66014b28633036eb071afc02425cd89815ef5f38

SHA256
7d4b793af22bcf021144e0bfdc8188b37d5db79cfce6436aff4070a6047873c0

SHA512
2e1025533b2dbfa027933b47265645685f276029effac5bb3ddda06545d535da60e462a156047f11712aba6564351318fcfcc9a8c7fa3da7a5cc30ecb9a11fa4

Download Submit
memory/3856-29-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-60-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-61-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-45-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-44-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-17-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-14-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-13-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-12-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-18-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-7-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-36-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-68-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-28-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-19-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-20-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-21-0x0000000000960000-0x00000000009E2000-memory.dmp

Filesize
520KB

Download
memory/3856-22-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-26-0x0000000000514000-0x000000000052D000-memory.dmp

Filesize
100KB

Download
memory/3928-1-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-0-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-2-0x0000000000514000-0x000000000052D000-memory.dmp

Filesize
100KB

Download
memory/3928-10-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-8-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-11-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-6-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-4-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download
memory/3928-5-0x0000000000400000-0x0000000000959000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads