remcos | 9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7

General

Target

9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
Size

1.3MB
MD5

8b0f66978d1934eec07b6213c2c8037a
SHA1

a33a467ae0d0ceaefcefaf7a5b6f7670ec1c3062
SHA256

9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7
SHA512

16976157ddc43b02cb1d0fc1d621cdc2d64b27b1f0f7e6620fcafdaf52bd77ecf970e051ad1bcc3cb6fa74f9737c127e1af40ad04d86764931cc3b606bfc5fa0
SSDEEP

24576:LaHUIH+zim0CY8iMklskJzNbpYk6B9DNSLAFi02Kyh6qqRztvjnKPXlof6btJ:LaHUIH+g8iMklfhtGkuDqAMfdh6qqttY

Score

10^/10

remcos feb 16 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

FEB 16

C2

austin99.duckdns.org:9373

103.186.117.61:9373

heksaa3030.redirectme.net:9373

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-YHG6AC
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
Remcos family
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
2736	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2356 set thread context of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.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	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.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	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.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
2808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
2736	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
Token: SeDebugPrivilege	2736	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2740	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2356 wrote to memory of 2736	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	31
PID 2356 wrote to memory of 2736	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	31
PID 2356 wrote to memory of 2736	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	31
PID 2356 wrote to memory of 2736	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	31
PID 2356 wrote to memory of 2808	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	33
PID 2356 wrote to memory of 2808	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	33
PID 2356 wrote to memory of 2808	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	33
PID 2356 wrote to memory of 2808	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	33
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35
PID 2356 wrote to memory of 2740	2356	9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe	35

C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
"C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DpEFdRPYuiXBgv.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DpEFdRPYuiXBgv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDCF7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2808
- C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe
  "C:\Users\Admin\AppData\Local\Temp\9c39d381f96fb45ffcb826c90aaee8c6818767eabf44e757fa5518217611d7c7.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:2740

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
62e460dd13d0d449fce1c8d0193a9a19

SHA1
c04b10e571eb6f553e7d55121c5d573cc1789ac1

SHA256
881294bfb1e91a662c8734b359c39567f8053c54e7ca517b4bfc1bf6bbfefafe

SHA512
dc9250bc2225ffb06b0661120f0daecbecc4285dfda5d52f203d371048a8b32011afcf3c4ca2247f6a07f1e57bcd62535a3f464e127099027406fa40818f09c7

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDCF7.tmp

Filesize
1KB

MD5
5e65da488cfde3f9336e830dfac5a7a0

SHA1
716f3aa1ddd5f63d4dd44b608f695d52524129f5

SHA256
a0af3d7b9c6f8de051a1d6f8ccad0b055990dc2f0659f33175bb6987d72f8cd3

SHA512
0c0c773e3b3191801e7f60be9f5538b36760a08560b4cec21ca5f2c9b856b51b2a5e24b05edd994f699609122cfcdc5249d0c7978c518f3418c1e2cd11fc7885

Download Submit
memory/2356-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2356-1-0x0000000000F60000-0x00000000010BA000-memory.dmp

Filesize
1.4MB

Download
memory/2356-2-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-3-0x0000000000590000-0x00000000005AE000-memory.dmp

Filesize
120KB

Download
memory/2356-4-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2356-5-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2356-6-0x00000000065A0000-0x0000000006660000-memory.dmp

Filesize
768KB

Download
memory/2356-37-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-16-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-62-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2740-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads