remcos | 173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818

General

Target

173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe
Size

933KB
MD5

710651fb293df9922080f5b7a4d10916
SHA1

a38b66874d59a9e026b2c15e49501e8f4e1fd6b5
SHA256

173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818
SHA512

bdc25b6f70bab4352e7c03ae7fbcd6a9718fe98804d9b24f27dc33b0bba114f0bab2d37af1de53d4dbe0e2794f3e706dbd3ef3765de2820bbd48f4b347f132d9
SSDEEP

24576:nUkh5oDiJ31erRs6PXmm7V9R7SoAZA0C8/UYn2xlcX6:nn5oDiZgOCV9RWrtCAU3xi

Score

10^/10

remcos 76485 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

76485

C2

windowsocttehe.duckdns.org:52411

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
764-0XPV9J
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 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2060	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2476 set thread context of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.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
2928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2060	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2060	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2060	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	31
PID 2476 wrote to memory of 2060	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	31
PID 2476 wrote to memory of 2060	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	31
PID 2476 wrote to memory of 2060	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	31
PID 2476 wrote to memory of 2928	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	33
PID 2476 wrote to memory of 2928	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	33
PID 2476 wrote to memory of 2928	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	33
PID 2476 wrote to memory of 2928	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	33
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35
PID 2476 wrote to memory of 2792	2476	173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe	35

C:\Users\Admin\AppData\Local\Temp\173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe
"C:\Users\Admin\AppData\Local\Temp\173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2476
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rjOyFV.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2060
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rjOyFV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF6DD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2928
- C:\Users\Admin\AppData\Local\Temp\173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe
  "C:\Users\Admin\AppData\Local\Temp\173fa94e725abc88acf0d848bdee94d216a3c74b4492e006405c357824fab818.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2792

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\tmpF6DD.tmp

Filesize
1KB

MD5
0e6aad63c8f7500e88c637d187b46d95

SHA1
8f857ceb220d78d7e3bb067bd8589afc9797780e

SHA256
5d81db978e76943bb44ba033cb54d88434eb0549a0c946f4fc0cf58c4698c606

SHA512
b209415d9ab651b7dc6575e9402037f8f08e6c2b1a3481fed0477bfe285d293fc82a01549629d0a700aecc3cfc29e9c5ca4281cfa16f3a7853698e4ca6a1c68b

Download Submit
memory/2476-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/2476-1-0x0000000000B10000-0x0000000000C00000-memory.dmp

Filesize
960KB

Download
memory/2476-2-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2476-3-0x0000000000610000-0x000000000062C000-memory.dmp

Filesize
112KB

Download
memory/2476-4-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/2476-5-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2476-6-0x00000000053F0000-0x00000000054AE000-memory.dmp

Filesize
760KB

Download
memory/2476-34-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2792-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2792-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-15-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2792-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads