remcos | 9637d5e3fdd07fe88d08a27d180b156e9eb8aad744b0b1195cd3595b73c0e575

General

Target

New Inquiry.exe
Size

965KB
MD5

d5c37d93192e0f422d5d137ec4aa2b8c
SHA1

b7beeb30b007534621de8a6b3290cb5d1fbd1dec
SHA256

92afc1bb9af8c414b7501e82e840f575d992ba24ff9b7abcce570bd056beec51
SHA512

071b1c3a95096fa76231f61f33e0fdc95a4b7ee0e18d7256edac807219c83ffcaf540921cfa710a31a4728b80739dbcd1a93d31d70e95322d29b7dac52f506f9
SSDEEP

24576:viwf65QYsrvEByN6wyNgMYQ2na5LN46w/APTUTQnuf7nk:meHrvmyRyY6hATQnufT

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

198.46.174.158:2404

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-130QB0
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2852	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2568 set thread context of 3004	2568	New Inquiry.exe	35

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	New Inquiry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	New Inquiry.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2568	New Inquiry.exe
2568	New Inquiry.exe
2568	New Inquiry.exe
2568	New Inquiry.exe
2568	New Inquiry.exe
2568	New Inquiry.exe
2568	New Inquiry.exe
2852	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2568	New Inquiry.exe
Token: SeDebugPrivilege	2852	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2568 wrote to memory of 2852	2568	New Inquiry.exe	31
PID 2568 wrote to memory of 2852	2568	New Inquiry.exe	31
PID 2568 wrote to memory of 2852	2568	New Inquiry.exe	31
PID 2568 wrote to memory of 2852	2568	New Inquiry.exe	31
PID 2568 wrote to memory of 2864	2568	New Inquiry.exe	32
PID 2568 wrote to memory of 2864	2568	New Inquiry.exe	32
PID 2568 wrote to memory of 2864	2568	New Inquiry.exe	32
PID 2568 wrote to memory of 2864	2568	New Inquiry.exe	32
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35
PID 2568 wrote to memory of 3004	2568	New Inquiry.exe	35

C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe
"C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ohrFKEHh.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2852
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ohrFKEHh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp80C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2864
- C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe
  "C:\Users\Admin\AppData\Local\Temp\New Inquiry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp80C.tmp

Filesize
1KB

MD5
a28913406d238d7fada9ee6610651f4d

SHA1
ef6b967644ef763282069ebe214f9fb6ffda1a68

SHA256
41219077bbd07e80518162efffda43ea60341cbbb3c940103847bd5a86d068c6

SHA512
3a5a33b69c0bd8deedb5aed013fa8fc7584f8baa067e3e2906084dd870f239c8f33b89f81510a014ffa2a98bda4ec0987ebca545a8001ebdf6fd75d984bf7ceb

Download Submit
memory/2568-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2568-1-0x0000000000CB0000-0x0000000000DA8000-memory.dmp

Filesize
992KB

Download
memory/2568-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-3-0x0000000000490000-0x00000000004A0000-memory.dmp

Filesize
64KB

Download
memory/2568-4-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2568-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2568-6-0x0000000005050000-0x0000000005110000-memory.dmp

Filesize
768KB

Download
memory/2568-35-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/3004-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3004-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3004-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads