remcos | de739f74131f337f9b6f5f2597a325c62eae0f3a5cf333e77717a6cb1779303f

General

Target

ebus.exe
Size

4.9MB
MD5

d0dd9d507dae67286edb8c0b5a8fef91
SHA1

deff04026dc178bf6ab9eb922f1e775104da494d
SHA256

de739f74131f337f9b6f5f2597a325c62eae0f3a5cf333e77717a6cb1779303f
SHA512

fed4fc8df2e4abf3a0efb83e827ecb63c0c538989982fb7bf361e06cdd65261329a2cf11112dae6b83ecf7f85aa350324ac3f7a6502315323fe3336282f36faa
SSDEEP

24576:3x+YXYYYOXYXYYY5X4L/qo5v1WdfJFHzR1cbBrOTVzgXKf+nJSGZ27S:

Score

10^/10

remcos graced persistence rat

Malware Config

Extracted

Family

remcos

Botnet

Graced

C2

185.156.174.115:32763

127.0.0.1:32763

10.13.93.136:32763

Attributes

audio_folder
MicRecords
audio_path
%AppData%
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
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%AppData%
mouse_option
false
mutex
Remcos-LRK9GW
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Edftgazvr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Rqzveskto\\Edftgazvr.exe\""	ebus.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1348 set thread context of 980	1348	ebus.exe	28

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
240	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1348	ebus.exe
Token: SeDebugPrivilege	240	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1348 wrote to memory of 240	1348	ebus.exe	26
PID 1348 wrote to memory of 240	1348	ebus.exe	26
PID 1348 wrote to memory of 240	1348	ebus.exe	26
PID 1348 wrote to memory of 240	1348	ebus.exe	26
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28
PID 1348 wrote to memory of 980	1348	ebus.exe	28

C:\Users\Admin\AppData\Local\Temp\ebus.exe
"C:\Users\Admin\AppData\Local\Temp\ebus.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1348
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAzAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:240
- C:\Users\Admin\AppData\Local\Temp\ebus.exe
  C:\Users\Admin\AppData\Local\Temp\ebus.exe
  2⤵
  PID:980

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/240-59-0x000000006F6B0000-0x000000006FC5B000-memory.dmp

Filesize
5.7MB

Download
memory/240-60-0x000000006F6B0000-0x000000006FC5B000-memory.dmp

Filesize
5.7MB

Download
memory/240-57-0x0000000074F41000-0x0000000074F43000-memory.dmp

Filesize
8KB

Download
memory/240-58-0x000000006F6B0000-0x000000006FC5B000-memory.dmp

Filesize
5.7MB

Download
memory/980-66-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-68-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-61-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-62-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-64-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-79-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-67-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-78-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-69-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-71-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-73-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/980-77-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/1348-55-0x0000000005EA0000-0x00000000060E8000-memory.dmp

Filesize
2.3MB

Download
memory/1348-54-0x0000000000910000-0x0000000000DF4000-memory.dmp

Filesize
4.9MB

Download

Analysis

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