remcos | f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07

General

Target

f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe
Size

1.1MB
MD5

80b1bd15b16559e4bf630c60f7819a84
SHA1

bcd2884bee79ffbc87b63ec96b35478232da4a05
SHA256

f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07
SHA512

03e2a9e48c038d5786281d0c338898548c4809a98597aef430a84e204af9518286744d542bf47cddfb5e6c605a3b513e50f9af1df5379a4337da7c5a90c0ccb3
SSDEEP

24576:8zs840f0gGLrFSxQ8Y21mwSvOIRPV/7BpgB9:8zs8C1dmQ8XmwQbPV

Score

10^/10

remcos hdyebf discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

hdyebf

C2

decmainserver.webredirect.org:45682

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
46875-RPQWNM
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
2004	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2908 set thread context of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34

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	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.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
1064	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2004	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 2004	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	30
PID 2908 wrote to memory of 2004	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	30
PID 2908 wrote to memory of 2004	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	30
PID 2908 wrote to memory of 2004	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	30
PID 2908 wrote to memory of 1064	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	31
PID 2908 wrote to memory of 1064	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	31
PID 2908 wrote to memory of 1064	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	31
PID 2908 wrote to memory of 1064	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	31
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34
PID 2908 wrote to memory of 2268	2908	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	34

C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe
"C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xjXWSRbLn.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2004
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xjXWSRbLn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE10C.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1064
- C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe
  "C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2268

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\tmpE10C.tmp

Filesize
1KB

MD5
acbafc1675dfe7aa726efc9fb628dd8f

SHA1
1ee950266ed953b44192475f2a7b2849a1133807

SHA256
1f2b857f0dbf4df1078ee4652432b98fe85a5176629636c1157d18cc26fb7a3d

SHA512
fd68782a23e71a9f117906507eb19891d5a9f63b6dac13ac3e3d063d0cd756064dea9c0fa37919a276f1bdd144c0fc462ede97ce965ce7641586322e321170db

Download Submit
memory/2268-20-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-18-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2268-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-17-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-14-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-12-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2268-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2908-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2908-4-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2908-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2908-32-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2908-1-0x0000000000D10000-0x0000000000E32000-memory.dmp

Filesize
1.1MB

Download
memory/2908-6-0x00000000059D0000-0x0000000005A90000-memory.dmp

Filesize
768KB

Download
memory/2908-5-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2908-3-0x0000000000680000-0x0000000000698000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads