remcos | b1f568bded61ea7bf8326907be78f5bddd43f3cb03be219d462917440ba1eaa7

General

Target

Quotation.exe
Size

1.0MB
MD5

508fba262804a1ec8d887868d2e8ee2c
SHA1

a909187e35e60749e4da331d37599e2a29fe2b7e
SHA256

91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16
SHA512

d2d2c39a4068fb4b527fec0624f9b227c05d62f9e0636591ca73660fbc7809834b757d73ec9c92679e507f97eb5cbbbb8a842502eebe6bd565a05226d2ed00d4
SSDEEP

24576:7Odf+JAUM+bdGdzFpU3ZKA58wnTkdxNpSv8YCGJm:7yf+ZodzHU3ZK08dvNgvbCGJ

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
2348	powershell.exe
2616	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 592	2256	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.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
2668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2256	Quotation.exe
2348	powershell.exe
2616	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2256	Quotation.exe
Token: SeDebugPrivilege	2348	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2616	2256	Quotation.exe	30
PID 2256 wrote to memory of 2616	2256	Quotation.exe	30
PID 2256 wrote to memory of 2616	2256	Quotation.exe	30
PID 2256 wrote to memory of 2616	2256	Quotation.exe	30
PID 2256 wrote to memory of 2348	2256	Quotation.exe	32
PID 2256 wrote to memory of 2348	2256	Quotation.exe	32
PID 2256 wrote to memory of 2348	2256	Quotation.exe	32
PID 2256 wrote to memory of 2348	2256	Quotation.exe	32
PID 2256 wrote to memory of 2668	2256	Quotation.exe	34
PID 2256 wrote to memory of 2668	2256	Quotation.exe	34
PID 2256 wrote to memory of 2668	2256	Quotation.exe	34
PID 2256 wrote to memory of 2668	2256	Quotation.exe	34
PID 2256 wrote to memory of 808	2256	Quotation.exe	36
PID 2256 wrote to memory of 808	2256	Quotation.exe	36
PID 2256 wrote to memory of 808	2256	Quotation.exe	36
PID 2256 wrote to memory of 808	2256	Quotation.exe	36
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	Quotation.exe	37
PID 2256 wrote to memory of 592	2256	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:2256
- 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:2616
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vFEnLODNRoht.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2348
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vFEnLODNRoht" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC17.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2668
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:808
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:592

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\tmpAC17.tmp

Filesize
1KB

MD5
d7c6c1b543a16b07055b9df5414364df

SHA1
f430f3e0c051ac988dcb4106c4f3f821c5a886a0

SHA256
481bedc4a3d7038f3f12da9e42c7926b28ce3d8eab42731dd5cc8631247edd22

SHA512
c99721c36f377c04234795c18e6bed979c2cca617d725cde781e6e3b5b8ff149d6c4f6ccd6525c83a33c8c9365cbf3b88f1d54fa721b53bd6f0a31c8e30ca07f

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

Filesize
7KB

MD5
e4f71c3432e15a604dff74fcc4d77f8f

SHA1
5f77c1546fb3c829f2cf7d996ded2192fb54f0b3

SHA256
7909d8533df1c95df189e0e52fb41cbc3a73c55af25467727cd9c82d6bedbfc6

SHA512
493676a242014d48a0f1332288545ab5b306703bae0078b9a10ce2e7138e277c6275d06748835567ebd7df05624fcb95b5b69d96246d41e9255847bbb91e7a44

Download Submit
memory/592-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/592-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/592-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2256-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2256-36-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2256-3-0x0000000000390000-0x00000000003B6000-memory.dmp

Filesize
152KB

Download
memory/2256-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2256-1-0x00000000000A0000-0x00000000001B2000-memory.dmp

Filesize
1.1MB

Download
memory/2256-6-0x000000000A590000-0x000000000A654000-memory.dmp

Filesize
784KB

Download
memory/2256-5-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2256-4-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads