remcos | 8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f

General

Target

8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
Size

1.0MB
MD5

3fcb3ba201b234234bc5d65d20afe8f4
SHA1

78917404e82b3bb709ce2caa6a2c291922f1539f
SHA256

8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f
SHA512

6d8e182c3386d724aa6e7d6bd266606a31db3b2f553080e03955f04c8c7f80130b67faa6c5f2d7ceb2148f6f638d97dc90296f0ae92354592562c2f1724b714a
SSDEEP

24576:L8M3chivYWuMmZIAsS9IfjYf/K2VG4ei4qHAlBTbhkBNQqzcnoT:TQBvIHSfVGoxKhyNpzcnI

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

23.95.235.18:2557

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-E0JKXE
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

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
2700	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2092 set thread context of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33

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 3 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	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
2700	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
Token: SeDebugPrivilege	2700	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2092 wrote to memory of 2700	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	31
PID 2092 wrote to memory of 2700	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	31
PID 2092 wrote to memory of 2700	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	31
PID 2092 wrote to memory of 2700	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	31
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33
PID 2092 wrote to memory of 2736	2092	8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe	33

C:\Users\Admin\AppData\Local\Temp\8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
"C:\Users\Admin\AppData\Local\Temp\8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2092
- 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\8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2700
- C:\Users\Admin\AppData\Local\Temp\8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe
  "C:\Users\Admin\AppData\Local\Temp\8c8cad5c12f471f42d5992e71bd32478aedb40af922b03ef4920047012c04d1f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

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

Replay Monitor

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Downloads

memory/2092-0-0x0000000073EEE000-0x0000000073EEF000-memory.dmp

Filesize
4KB

Download
memory/2092-1-0x0000000000BA0000-0x0000000000CAA000-memory.dmp

Filesize
1.0MB

Download
memory/2092-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/2092-3-0x0000000000970000-0x0000000000988000-memory.dmp

Filesize
96KB

Download
memory/2092-4-0x0000000073EEE000-0x0000000073EEF000-memory.dmp

Filesize
4KB

Download
memory/2092-5-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/2092-6-0x0000000004960000-0x0000000004A20000-memory.dmp

Filesize
768KB

Download
memory/2092-27-0x0000000073EE0000-0x00000000745CE000-memory.dmp

Filesize
6.9MB

Download
memory/2736-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2736-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-7-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-17-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-13-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-11-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-9-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2736-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

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