remcos | 89f4203e055ad6d3b40b74d683ed1ca0436ad4df41c3456f23134c4a15eb6c13

General

Target

ORDER INQUIRY 20230201.exe
Size

1.1MB
MD5

4bc918bf6311c5b753c353efd306547e
SHA1

9b7301fc448a6d9564e6b984363190ffa88ab891
SHA256

89f4203e055ad6d3b40b74d683ed1ca0436ad4df41c3456f23134c4a15eb6c13
SHA512

0d9b575c93cb73de5cfc175335f72cefb8b9d3f5d5e90ab1353b0362fbde0bbcfc288fa5039759fb92ad0154e836c3cefb9636e7a108d5706023611e1ac93cfe
SSDEEP

24576:peOaJr8zw6RgDlCwwWbYqhseWy97+3A3Me83RAiTH/qc4N34:pAJr8zgDlCww6YqhsOY3OKhAiT

Score

10^/10

remcos new rem stub rat

Malware Config

Extracted

Family

remcos

Botnet

NEW REM STUB

C2

onyem.duckdns.org:5050

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-HFP2Q6
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

ORDER INQUIRY 20230201.exe

description pid process target process

PID 1720 set thread context of 1784 1720 ORDER INQUIRY 20230201.exe ORDER INQUIRY 20230201.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2036 schtasks.exe

description	pid	process	target process
PID 1720 set thread context of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe

pid	process
2036	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

ORDER INQUIRY 20230201.exepowershell.exe

pid	process
1720	ORDER INQUIRY 20230201.exe
1720	ORDER INQUIRY 20230201.exe
1720	ORDER INQUIRY 20230201.exe
1720	ORDER INQUIRY 20230201.exe
1720	ORDER INQUIRY 20230201.exe
1720	ORDER INQUIRY 20230201.exe
512	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ORDER INQUIRY 20230201.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1720 ORDER INQUIRY 20230201.exe
Token: SeDebugPrivilege 512 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ORDER INQUIRY 20230201.exe

pid process

1784 ORDER INQUIRY 20230201.exe

description	pid	process
Token: SeDebugPrivilege	1720	ORDER INQUIRY 20230201.exe
Token: SeDebugPrivilege	512	powershell.exe

pid	process
1784	ORDER INQUIRY 20230201.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

ORDER INQUIRY 20230201.exe

description	pid	process	target process
PID 1720 wrote to memory of 512	1720	ORDER INQUIRY 20230201.exe	powershell.exe
PID 1720 wrote to memory of 512	1720	ORDER INQUIRY 20230201.exe	powershell.exe
PID 1720 wrote to memory of 512	1720	ORDER INQUIRY 20230201.exe	powershell.exe
PID 1720 wrote to memory of 512	1720	ORDER INQUIRY 20230201.exe	powershell.exe
PID 1720 wrote to memory of 2036	1720	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 1720 wrote to memory of 2036	1720	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 1720 wrote to memory of 2036	1720	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 1720 wrote to memory of 2036	1720	ORDER INQUIRY 20230201.exe	schtasks.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe
PID 1720 wrote to memory of 1784	1720	ORDER INQUIRY 20230201.exe	ORDER INQUIRY 20230201.exe

C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VlANzLOhprFUhQ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:512

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VlANzLOhprFUhQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC801.tmp"
2⤵
- Creates scheduled task(s)
PID:2036

C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe
"C:\Users\Admin\AppData\Local\Temp\ORDER INQUIRY 20230201.exe"
2⤵
- Suspicious use of SetWindowsHookEx
PID:1784

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC801.tmp
Filesize
1KB

MD5
022c3269b36f468fae1d42abab85c7f0

SHA1
a13651bf59978005e4ca882064b1888cfbd87af5

SHA256
788806b4f3a7c75231b459f21a199537ccf662aae9f8f3fd8bc2e39ace60e3f2

SHA512
d19f3c67d31105a8299ed71c47ad1b1e43783b62758b5ab05ebdf8482ddc4ecd3c0ac4cef265239ec1f72396c2986f229cff162b6990131b46d8a31a981bf5bd

Download Submit
memory/512-59-0x0000000000000000-mapping.dmp

Download
memory/512-82-0x000000006EB70000-0x000000006F11B000-memory.dmp

Filesize
5.7MB

Download
memory/512-81-0x000000006EB70000-0x000000006F11B000-memory.dmp

Filesize
5.7MB

Download
memory/1720-54-0x00000000010A0000-0x00000000011B6000-memory.dmp

Filesize
1.1MB

Download
memory/1720-55-0x0000000075D51000-0x0000000075D53000-memory.dmp

Filesize
8KB

Download
memory/1720-56-0x0000000000490000-0x00000000004A4000-memory.dmp

Filesize
80KB

Download
memory/1720-57-0x00000000008D0000-0x00000000008DA000-memory.dmp

Filesize
40KB

Download
memory/1720-58-0x0000000007F50000-0x0000000008002000-memory.dmp

Filesize
712KB

Download
memory/1720-63-0x0000000008070000-0x00000000080EC000-memory.dmp

Filesize
496KB

Download
memory/1784-77-0x00000000004327A4-mapping.dmp

Download
memory/1784-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1784-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2036-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads