remcos | 91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16

General

Target

91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.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
2880	powershell.exe
2268	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 804 set thread context of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
2880	powershell.exe
2268	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
Token: SeDebugPrivilege	2880	powershell.exe
Token: SeDebugPrivilege	2268	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 2880	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	31
PID 804 wrote to memory of 2880	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	31
PID 804 wrote to memory of 2880	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	31
PID 804 wrote to memory of 2880	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	31
PID 804 wrote to memory of 2268	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	33
PID 804 wrote to memory of 2268	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	33
PID 804 wrote to memory of 2268	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	33
PID 804 wrote to memory of 2268	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	33
PID 804 wrote to memory of 2920	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	35
PID 804 wrote to memory of 2920	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	35
PID 804 wrote to memory of 2920	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	35
PID 804 wrote to memory of 2920	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	35
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37
PID 804 wrote to memory of 2624	804	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	37

C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
"C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:804
- 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\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2880
- 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:2268
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vFEnLODNRoht" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCCD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2920
- C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
  "C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2624

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\tmpCCD.tmp

Filesize
1KB

MD5
8d1585fd42cb3617c90d3c32073d3a4b

SHA1
fe3950db99f82a5f437a11475adc18cf9a9f981d

SHA256
01542b5f9068d38c683c308ccc0bb154edb8a8ecb4391f0138ac0da11095db3b

SHA512
7d5627126baa4dc34d0bac5efc97b9d9881a7f0cde1b8893d617aacd17de572a52cde44b9b83c17bda113383a670203a3a5197603be05b12c9b16ab130fdcbf4

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

Filesize
7KB

MD5
477f08dafbe475ed6f4cdc572ce7c5cf

SHA1
ace256d235a78215d09a59d4350d516a266d9614

SHA256
8767318599b9e62b1877bbecb98ea14e3eb05d5dde7be454ca78dabfe23de5d9

SHA512
c711bfdff1ecaec0f4b1c1532f6d340e1eb70577bc426c475821eb94f49a2906745275d66a710e6169c317bfddac920fc92dde0504013b464b315493c601b2ef

Download Submit
memory/804-36-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/804-1-0x0000000000C20000-0x0000000000D32000-memory.dmp

Filesize
1.1MB

Download
memory/804-2-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/804-3-0x0000000000420000-0x0000000000446000-memory.dmp

Filesize
152KB

Download
memory/804-4-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/804-5-0x0000000074020000-0x000000007470E000-memory.dmp

Filesize
6.9MB

Download
memory/804-6-0x000000000A460000-0x000000000A524000-memory.dmp

Filesize
784KB

Download
memory/804-0-0x000000007402E000-0x000000007402F000-memory.dmp

Filesize
4KB

Download
memory/2624-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2624-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads