remcos | f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 06:04

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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

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
1436	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1052 set thread context of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
1668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1436	powershell.exe
1436	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1436	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 1436	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	97
PID 1052 wrote to memory of 1436	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	97
PID 1052 wrote to memory of 1436	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	97
PID 1052 wrote to memory of 1668	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	99
PID 1052 wrote to memory of 1668	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	99
PID 1052 wrote to memory of 1668	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	99
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101
PID 1052 wrote to memory of 876	1052	f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe	101

C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe
"C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1052
- 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:1436
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xjXWSRbLn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDE1B.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1668
- C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe
  "C:\Users\Admin\AppData\Local\Temp\f9b5a6befe0272cfa6fe717ac29a61d76bd340d1c564e179cb65975ac98b1f07.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:876

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

Query Registry

T1012

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:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lkwdjfxl.jsp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDE1B.tmp

Filesize
1KB

MD5
cb3f47c85c6dc3b4934562209b499951

SHA1
a05d1b0f6fb21d3723c77a149d829d7aa4d8a697

SHA256
7568d96145f2e554139e595fa734cd6b3a3db9633240aa5e18e264b450019958

SHA512
ea241445007ff2178fbd9c42c8c27cd2efa7329ff1850ea84fc829938f32a8eb65a006b6b061be649653c10db7cd3fa2f16e01be4f17aed7e4771be7a3cf9df5

Download Submit
memory/876-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/876-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1052-10-0x00000000070C0000-0x000000000715C000-memory.dmp

Filesize
624KB

Download
memory/1052-30-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1052-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/1052-4-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/1052-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/1052-3-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/1052-9-0x0000000006E00000-0x0000000006EC0000-memory.dmp

Filesize
768KB

Download
memory/1052-8-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1052-7-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

Filesize
4KB

Download
memory/1052-1-0x00000000006B0000-0x00000000007D2000-memory.dmp

Filesize
1.1MB

Download
memory/1052-6-0x00000000056F0000-0x0000000005708000-memory.dmp

Filesize
96KB

Download
memory/1052-5-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1436-19-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1436-55-0x0000000006EF0000-0x0000000006F0E000-memory.dmp

Filesize
120KB

Download
memory/1436-56-0x0000000007B30000-0x0000000007BD3000-memory.dmp

Filesize
652KB

Download
memory/1436-57-0x00000000082B0000-0x000000000892A000-memory.dmp

Filesize
6.5MB

Download
memory/1436-58-0x0000000007C70000-0x0000000007C8A000-memory.dmp

Filesize
104KB

Download
memory/1436-59-0x0000000007CE0000-0x0000000007CEA000-memory.dmp

Filesize
40KB

Download
memory/1436-60-0x0000000007EF0000-0x0000000007F86000-memory.dmp

Filesize
600KB

Download
memory/1436-61-0x0000000007E70000-0x0000000007E81000-memory.dmp

Filesize
68KB

Download
memory/1436-62-0x0000000007EA0000-0x0000000007EAE000-memory.dmp

Filesize
56KB

Download
memory/1436-63-0x0000000007EB0000-0x0000000007EC4000-memory.dmp

Filesize
80KB

Download
memory/1436-64-0x0000000007FB0000-0x0000000007FCA000-memory.dmp

Filesize
104KB

Download
memory/1436-65-0x0000000007F90000-0x0000000007F98000-memory.dmp

Filesize
32KB

Download
memory/1436-68-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1436-45-0x0000000072140000-0x000000007218C000-memory.dmp

Filesize
304KB

Download
memory/1436-44-0x00000000078F0000-0x0000000007922000-memory.dmp

Filesize
200KB

Download
memory/1436-43-0x0000000006C80000-0x0000000006CCC000-memory.dmp

Filesize
304KB

Download
memory/1436-42-0x0000000006940000-0x000000000695E000-memory.dmp

Filesize
120KB

Download
memory/1436-26-0x00000000060E0000-0x0000000006102000-memory.dmp

Filesize
136KB

Download
memory/1436-27-0x0000000006200000-0x0000000006266000-memory.dmp

Filesize
408KB

Download
memory/1436-31-0x0000000006390000-0x00000000066E4000-memory.dmp

Filesize
3.3MB

Download
memory/1436-28-0x0000000006320000-0x0000000006386000-memory.dmp

Filesize
408KB

Download
memory/1436-20-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1436-18-0x0000000005A80000-0x00000000060A8000-memory.dmp

Filesize
6.2MB

Download
memory/1436-16-0x0000000074A60000-0x0000000075210000-memory.dmp

Filesize
7.7MB

Download
memory/1436-15-0x00000000053C0000-0x00000000053F6000-memory.dmp

Filesize
216KB

Download