remcos | e47dfbb5bd64ac09562d7d20618ba7f024a0b7547d864217feb0586f7145cdb0

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09/12/2024, 07:30

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General

Target

Justificante de pago.exe
Size

1001KB
MD5

0c0b566099d8f32313cac142624e9b89
SHA1

c91bd91424a20a9d45cc62cd3aaa85afefe60a74
SHA256

e47dfbb5bd64ac09562d7d20618ba7f024a0b7547d864217feb0586f7145cdb0
SHA512

de9de86a26a0d0eee105908e1c378be6c18a99a4c03b7d8a6e9d2049a0fc830903e077684156928d7b97176c6fa05a6d9e66793760e2a9edd1b54dd22c98fa2d
SSDEEP

24576:2oIeeaYI32l/Pow+E9rW2rtaldr+3dmBABsNJUI:JBeaWl/Pow+EW2RaLrbw

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:7643

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-14OQCD
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
2556	powershell.exe
2704	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 1364	1660	Justificante de pago.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	Justificante de pago.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	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
2728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1660	Justificante de pago.exe
1660	Justificante de pago.exe
1660	Justificante de pago.exe
2556	powershell.exe
2704	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	Justificante de pago.exe
Token: SeDebugPrivilege	2556	powershell.exe
Token: SeDebugPrivilege	2704	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1364	Justificante de pago.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2556	1660	Justificante de pago.exe	29
PID 1660 wrote to memory of 2556	1660	Justificante de pago.exe	29
PID 1660 wrote to memory of 2556	1660	Justificante de pago.exe	29
PID 1660 wrote to memory of 2556	1660	Justificante de pago.exe	29
PID 1660 wrote to memory of 2704	1660	Justificante de pago.exe	31
PID 1660 wrote to memory of 2704	1660	Justificante de pago.exe	31
PID 1660 wrote to memory of 2704	1660	Justificante de pago.exe	31
PID 1660 wrote to memory of 2704	1660	Justificante de pago.exe	31
PID 1660 wrote to memory of 2728	1660	Justificante de pago.exe	32
PID 1660 wrote to memory of 2728	1660	Justificante de pago.exe	32
PID 1660 wrote to memory of 2728	1660	Justificante de pago.exe	32
PID 1660 wrote to memory of 2728	1660	Justificante de pago.exe	32
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35
PID 1660 wrote to memory of 1364	1660	Justificante de pago.exe	35

C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe
"C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1660
- 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\Justificante de pago.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2556
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TYLngHLuy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2704
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TYLngHLuy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3FFD.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2728
- C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe
  "C:\Users\Admin\AppData\Local\Temp\Justificante de pago.exe"
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
196e6e60d89001b9bd380dff4d428d26

SHA1
1098c57947878a0ebf09400a488f6ec0a7ddd871

SHA256
646917914ea392f047d47fbff7744d3b1eec9a1ab4f5ff1ec73062190aa89b68

SHA512
d75a774c86e4819ad680d4b109fe303416f4152c362a5c18323d61b733da007aea4dac2c2d8f297b6ca450dd71528cc2d201553c52949f4d57ac44f10812df81

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3FFD.tmp

Filesize
1KB

MD5
ce28a8c7a27f2d5ba1c9abf26f4361b3

SHA1
d545c2cc1ce390474d6638636ae5fae6ee7a9246

SHA256
874620e688a695146508375a8bf09e27ac9bc8065e8e70c8718985866a8620f1

SHA512
1affbd00d30ade83cd2182b123eeb098870193cba563331079b8fb5b20173e55c1cf84fecd77c9ed9cbff9c8f7b186d267bdab84c0eda29d29d8a27bcc8786dd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\KRYZ49XGURY2HG03V7WR.temp

Filesize
7KB

MD5
a1cb58b1d9e899b7fec36fec72462ca4

SHA1
7bf3dfc584544d1319c1fffa925217697dc8ac0e

SHA256
032d07874a7a8353d6238df64678a6dd75b0ecd36912f6338739ed179e13ce1d

SHA512
66d6badbf61464869702947eda1bc8663c5c580936cced1cd1116094959be174cd8ffe974fb1a459d76bc0988dc4384222a1a4cbae36abf8fb32a415ab29a8ba

Download Submit
memory/1364-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-91-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-90-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-27-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-89-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-88-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-87-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-85-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-84-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1364-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-65-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-61-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-63-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-64-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-66-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-67-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1364-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1660-39-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/1660-6-0x00000000076E0000-0x00000000077A4000-memory.dmp

Filesize
784KB

Download
memory/1660-5-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/1660-4-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/1660-3-0x0000000000240000-0x0000000000258000-memory.dmp

Filesize
96KB

Download
memory/1660-2-0x0000000074CA0000-0x000000007538E000-memory.dmp

Filesize
6.9MB

Download
memory/1660-1-0x0000000001210000-0x0000000001310000-memory.dmp

Filesize
1024KB

Download
memory/1660-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download