remcos | be92ea3d3f4d480c7dda68d421bf4f718b7411c14da94f1077d9debc40f29b95

General

Target

Quotation.exe
Size

990KB
MD5

ba0b6a9d6f493e8d718bbf796214900a
SHA1

0ac69c8653301edaca3beb1425b153689450a94e
SHA256

1efe29ca00c9e7c69c46dc8139204716a36b6074647f3ec4fb06e2ac6576d496
SHA512

ca401de6afbda29aec66bd0d03ab677790e3916b5b11c25a5326924c9a93df76dc82d909cc8bcf05db68e8753990ab4b8bb83016a6ef1cba43e0460113fd2195
SSDEEP

24576:2/J4LmzwMnIKb2RTysbOfUgZPLDxXWhFNA9V80Th6BqvRZe:MrDnIFReDfUgZPhVTM0pZ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2.58.56.182:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-GM05WY
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
Remcos family
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
2852	powershell.exe
2860	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2516 set thread context of 2880	2516	Quotation.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.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
2732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2516	Quotation.exe
2516	Quotation.exe
2852	powershell.exe
2860	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	Quotation.exe
Token: SeDebugPrivilege	2852	powershell.exe
Token: SeDebugPrivilege	2860	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2860	2516	Quotation.exe	31
PID 2516 wrote to memory of 2860	2516	Quotation.exe	31
PID 2516 wrote to memory of 2860	2516	Quotation.exe	31
PID 2516 wrote to memory of 2860	2516	Quotation.exe	31
PID 2516 wrote to memory of 2852	2516	Quotation.exe	33
PID 2516 wrote to memory of 2852	2516	Quotation.exe	33
PID 2516 wrote to memory of 2852	2516	Quotation.exe	33
PID 2516 wrote to memory of 2852	2516	Quotation.exe	33
PID 2516 wrote to memory of 2732	2516	Quotation.exe	34
PID 2516 wrote to memory of 2732	2516	Quotation.exe	34
PID 2516 wrote to memory of 2732	2516	Quotation.exe	34
PID 2516 wrote to memory of 2732	2516	Quotation.exe	34
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37
PID 2516 wrote to memory of 2880	2516	Quotation.exe	37

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516
- 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\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2860
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DUvXyihvzUp.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\DUvXyihvzUp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD2C9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2732
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2880

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD2C9.tmp

Filesize
1KB

MD5
ef994fc260c3d586e459375730d2c953

SHA1
5ac704afeb9a34b95f0993390c28f915b6dfb8e4

SHA256
844ca6319861565418ebe80c0e744c066cecf1f52014c32604eed712935ad811

SHA512
c22893ddceca0e2fcc4c97c4744d6750a540977bf86881320f3f99fe4a86950b80d1da5c594fcc266bcc4aa0898ba007935eec6139832b75a9a5475496edec0b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\AUVPAYE484EG3S7WJRM7.temp

Filesize
7KB

MD5
9ca7b4e601ee26b149a468896ba5f17d

SHA1
462e9eef91593d38389de65c66383a600e55f044

SHA256
6b490233bbfc968b0c9a5d279a8c9a9c2fbaa1adc496dbbad11cf3dfbe3b2038

SHA512
dbf410ff27b14e02ee5fb81d09a655340b712cf6aa965a93169496911b56beee41aab5fa4b057b4aa0c6e0443cb41d23360602fff9f4b3f46007850836b3ce31

Download Submit
memory/2516-0-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/2516-1-0x0000000000A00000-0x0000000000AFE000-memory.dmp

Filesize
1016KB

Download
memory/2516-2-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2516-3-0x0000000002100000-0x000000000211E000-memory.dmp

Filesize
120KB

Download
memory/2516-4-0x00000000744CE000-0x00000000744CF000-memory.dmp

Filesize
4KB

Download
memory/2516-5-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2516-6-0x0000000006360000-0x0000000006424000-memory.dmp

Filesize
784KB

Download
memory/2516-36-0x00000000744C0000-0x0000000074BAE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-40-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads