remcos | 709bbba61869b8d1858198010a92226f4ea1fb7d2c95dc33fbec4262980327ac

General

Target

QUOTE # EM067022.exe
Size

6KB
MD5

588dc78669c70ad45eefa0f2f7497815
SHA1

b90622241361b61445565eb15404dfbfa53561e4
SHA256

85d306912be80587264953469ca21f62da4c6b7cd1913b794787a563f90ef48c
SHA512

c57ad96fd559abebef976f41a30bb1cca86f3dc725765100bd6d7ba26bd673838d88df8ed9b748534a2d9ba681e4fe27c8fd291772c736141017c5ebf07f0ab3
SSDEEP

96:P/0MlfkKuMroRDQU2BwI47oxCXkMa/kjEthqFnU:3RZnctQUbIYXrasQrf

Score

10^/10

remcos remotehost persistence rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

172.111.234.110:5888

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-ULBEJI
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

Processes:

QUOTE # EM067022.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Iaidjxhpg = "\"C:\\Users\\Admin\\AppData\\Roaming\\Yvtngbykt\\Iaidjxhpg.exe\""	QUOTE # EM067022.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

QUOTE # EM067022.exe

description pid process target process

PID 1636 set thread context of 1788 1636 QUOTE # EM067022.exe QUOTE # EM067022.exe
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

Processes:

powershell.exe

pid process

1156 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

QUOTE # EM067022.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1636 QUOTE # EM067022.exe
Token: SeDebugPrivilege 1156 powershell.exe

description	pid	process	target process
PID 1636 set thread context of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe

pid	process
1156	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1636	QUOTE # EM067022.exe
Token: SeDebugPrivilege	1156	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

QUOTE # EM067022.exe

description	pid	process	target process
PID 1636 wrote to memory of 1156	1636	QUOTE # EM067022.exe	powershell.exe
PID 1636 wrote to memory of 1156	1636	QUOTE # EM067022.exe	powershell.exe
PID 1636 wrote to memory of 1156	1636	QUOTE # EM067022.exe	powershell.exe
PID 1636 wrote to memory of 1156	1636	QUOTE # EM067022.exe	powershell.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe
PID 1636 wrote to memory of 1788	1636	QUOTE # EM067022.exe	QUOTE # EM067022.exe

C:\Users\Admin\AppData\Local\Temp\QUOTE # EM067022.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTE # EM067022.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAxAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1156

C:\Users\Admin\AppData\Local\Temp\QUOTE # EM067022.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTE # EM067022.exe"
2⤵
PID:1788

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1156-58-0x0000000000000000-mapping.dmp

Download
memory/1156-60-0x000000006FAA0000-0x000000007004B000-memory.dmp

Filesize
5.7MB

Download
memory/1156-61-0x000000006FAA0000-0x000000007004B000-memory.dmp

Filesize
5.7MB

Download
memory/1636-54-0x0000000001220000-0x0000000001228000-memory.dmp

Filesize
32KB

Download
memory/1636-55-0x0000000075E51000-0x0000000075E53000-memory.dmp

Filesize
8KB

Download
memory/1636-56-0x00000000058C0000-0x00000000059A0000-memory.dmp

Filesize
896KB

Download
memory/1636-57-0x0000000004900000-0x0000000004992000-memory.dmp

Filesize
584KB

Download
memory/1788-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-75-0x00000000004327A4-mapping.dmp

Download
memory/1788-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1788-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

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