remcos | 8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5

General

Target

8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
Size

883KB
MD5

571902de75705d1aeaa32be01459dc65
SHA1

4ccf3c9a339146008c1d8466857e13d3c7752a05
SHA256

8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5
SHA512

966381cdeaf8213fefdca876052a59dcda9e2436cfc50b4516eca936ebb9e75b9421058969526fa0b46d06067a43398a51c8e7201fa72d39faa0153c4328a9d7
SSDEEP

24576:kBGzjcJ6NacNEyNOU+6cNuuH2SNcjmYY4Swv:kE86N1l5x8uuWSpYXS2

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2528	powershell.exe
2456	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1676 set thread context of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2748	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
2528	powershell.exe
2456	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
Token: SeDebugPrivilege	2528	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 2528	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	31
PID 1676 wrote to memory of 2528	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	31
PID 1676 wrote to memory of 2528	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	31
PID 1676 wrote to memory of 2528	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	31
PID 1676 wrote to memory of 2456	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1676 wrote to memory of 2456	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1676 wrote to memory of 2456	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1676 wrote to memory of 2456	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	33
PID 1676 wrote to memory of 2748	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	34
PID 1676 wrote to memory of 2748	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	34
PID 1676 wrote to memory of 2748	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	34
PID 1676 wrote to memory of 2748	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	34
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37
PID 1676 wrote to memory of 2648	1676	8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe	37

C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
"C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2528
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\efsOOkOP.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2456
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\efsOOkOP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD855.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2748
- C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe
  "C:\Users\Admin\AppData\Local\Temp\8f2c4543e4bc9194d1c1a9bc946a75d49162b0eee2715df4ba626980892107b5.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2648

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD855.tmp

Filesize
1KB

MD5
54784121149917669f08184e4a0f08cb

SHA1
bc20b43e52e9150cc10e3dc282144396d38a4bf7

SHA256
db4b5fa93ccfcb59fd36f079523bc96d1b1fb714fa525ac4f5c5fb67aaffe557

SHA512
f5f9babd835569b068e9da893b00dae37093632e2c99fe46657f9263aa6460c9000b6ca5c0c1da34c6b83c73e808b6636a2fd7d5312e2729de7df04751a6103d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
a1e8d0076849e37a5e7c44ca642abe3d

SHA1
2555d68fbe865c2f3e0227c17c42c17ed1f0d33b

SHA256
86a2a2cdbdc9a4056c999a3d6ebb205afc8f422ddbd98a88751f00311334e1e9

SHA512
d701093a4c081ae4584f5044893b76397fc31ed89da783bea9dc5b5e23eef2a3ff70e9256d5e6d38538138a9eb9c1f2ee29c58b6d2b183a4269a4656a7d1b648

Download Submit
memory/1676-0-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/1676-1-0x0000000001370000-0x0000000001454000-memory.dmp

Filesize
912KB

Download
memory/1676-2-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/1676-3-0x0000000000A00000-0x0000000000A12000-memory.dmp

Filesize
72KB

Download
memory/1676-4-0x000000007497E000-0x000000007497F000-memory.dmp

Filesize
4KB

Download
memory/1676-5-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/1676-6-0x0000000005390000-0x000000000544E000-memory.dmp

Filesize
760KB

Download
memory/1676-40-0x0000000074970000-0x000000007505E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2648-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads