remcos | c0a5183fb178f4734580069f8697419dd8883a88bf69e57a2edb109d15d5cc9d

General

Target

514ce89a033c910d8243090b926c741cea01d27f.exe
Size

8KB
MD5

aa6154b9872dcd75bcb87557a4fda5bb
SHA1

514ce89a033c910d8243090b926c741cea01d27f
SHA256

c0a5183fb178f4734580069f8697419dd8883a88bf69e57a2edb109d15d5cc9d
SHA512

1a06637debdbfc43a0940b18289ea8f9e6ff83b4ef69528e67f9515ad56c0ebeb147a1ef434be2188ac246790c24e9ad668eca108296e3432ed98d7957cdf3d6
SSDEEP

192:K1vFjl2DqyWLCOChmfnXLjWhLPdEmH5x8:K1vFjl2mpLCOCgfnXLjELmA5x

Score

10^/10

remcos 54345 persistence rat

Malware Config

Extracted

Family

remcos

Botnet

54345

C2

195.133.40.168:54345

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-XOSM7F
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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Exbqzyawb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Vsiibiypxa\\Exbqzyawb.exe\""	514ce89a033c910d8243090b926c741cea01d27f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1056 set thread context of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31

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
1900	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1056	514ce89a033c910d8243090b926c741cea01d27f.exe
Token: SeDebugPrivilege	1900	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1056 wrote to memory of 1900	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	28
PID 1056 wrote to memory of 1900	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	28
PID 1056 wrote to memory of 1900	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	28
PID 1056 wrote to memory of 1900	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	28
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31
PID 1056 wrote to memory of 1052	1056	514ce89a033c910d8243090b926c741cea01d27f.exe	31

C:\Users\Admin\AppData\Local\Temp\514ce89a033c910d8243090b926c741cea01d27f.exe
"C:\Users\Admin\AppData\Local\Temp\514ce89a033c910d8243090b926c741cea01d27f.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1056
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgA3AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1900
- C:\Users\Admin\AppData\Local\Temp\514ce89a033c910d8243090b926c741cea01d27f.exe
  C:\Users\Admin\AppData\Local\Temp\514ce89a033c910d8243090b926c741cea01d27f.exe
  2⤵
  PID:1052

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/1052-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-55-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/1056-54-0x00000000003A0000-0x00000000003A8000-memory.dmp

Filesize
32KB

Download
memory/1056-58-0x0000000007C00000-0x0000000007C92000-memory.dmp

Filesize
584KB

Download
memory/1056-57-0x0000000005DA0000-0x0000000005E1E000-memory.dmp

Filesize
504KB

Download
memory/1056-56-0x0000000008490000-0x0000000008598000-memory.dmp

Filesize
1.0MB

Download
memory/1900-63-0x000000006EF20000-0x000000006F4CB000-memory.dmp

Filesize
5.7MB

Download
memory/1900-62-0x000000006EF20000-0x000000006F4CB000-memory.dmp

Filesize
5.7MB

Download
memory/1900-61-0x000000006EF20000-0x000000006F4CB000-memory.dmp

Filesize
5.7MB

Download

Analysis

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