remcos | 91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24/01/2025, 04:35

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General

Target

91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
Size

1.0MB
MD5

508fba262804a1ec8d887868d2e8ee2c
SHA1

a909187e35e60749e4da331d37599e2a29fe2b7e
SHA256

91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16
SHA512

d2d2c39a4068fb4b527fec0624f9b227c05d62f9e0636591ca73660fbc7809834b757d73ec9c92679e507f97eb5cbbbb8a842502eebe6bd565a05226d2ed00d4
SSDEEP

24576:7Odf+JAUM+bdGdzFpU3ZKA58wnTkdxNpSv8YCGJm:7yf+ZodzHU3ZK08dvNgvbCGJ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

2.58.56.182:2404

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-GM05WY
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
3136	powershell.exe
5048	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5040 set thread context of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96

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 5 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	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.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
3400	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
3136	powershell.exe
5048	powershell.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
3136	powershell.exe
5048	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
Token: SeDebugPrivilege	3136	powershell.exe
Token: SeDebugPrivilege	5048	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 3136	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	89
PID 5040 wrote to memory of 3136	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	89
PID 5040 wrote to memory of 3136	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	89
PID 5040 wrote to memory of 5048	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	91
PID 5040 wrote to memory of 5048	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	91
PID 5040 wrote to memory of 5048	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	91
PID 5040 wrote to memory of 3400	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	93
PID 5040 wrote to memory of 3400	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	93
PID 5040 wrote to memory of 3400	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	93
PID 5040 wrote to memory of 5060	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	95
PID 5040 wrote to memory of 5060	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	95
PID 5040 wrote to memory of 5060	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	95
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96
PID 5040 wrote to memory of 4112	5040	91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe	96

C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
"C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5040
- 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\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3136
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\vFEnLODNRoht.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5048
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vFEnLODNRoht" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1325.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3400
- C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
  "C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
  2⤵
  PID:5060
- C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe
  "C:\Users\Admin\AppData\Local\Temp\91a4ae1e1acda298e513d45b389598a4e6561fe83f8db3d05c44bcb551c01a16.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4112

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\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
c3d846a91b5db1b08f07ba38230a5324

SHA1
6aa3eb67b0dcb5d08aa80bb7646d9a66603d6040

SHA256
99b6294a42b9a79cd18172c924023a272180acb650df206010cd137d7a8e323a

SHA512
2b65d4d540da64c3f063b3b3b2785c188cf5749916060d819884718ff628dcdb5647a788f6902fc967f9b9af37239137ae3e67f462e869cbd300fa74badd629a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1jqkfszk.kwa.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1325.tmp

Filesize
1KB

MD5
404a4c132f474eaecacb3767aed3e2e0

SHA1
bc5e479dfb406d9e3c8979d5d486f8b4ee53dc46

SHA256
6eba0ac0f99e618790112e452809b87a597bfc3adbbc598a11e7899b78097b88

SHA512
d1074a43167fb3d37915b3315e7cdb7cbb90319a7fefb5aef4d649de8ea53863a777eaf344e0f2e0fc5a86465af5879dde683658761c6bb64708f4e9aaafa8b3

Download Submit
memory/3136-86-0x00000000073E0000-0x00000000073F1000-memory.dmp

Filesize
68KB

Download
memory/3136-16-0x00000000050D0000-0x00000000056F8000-memory.dmp

Filesize
6.2MB

Download
memory/3136-82-0x0000000007830000-0x0000000007EAA000-memory.dmp

Filesize
6.5MB

Download
memory/3136-83-0x00000000071E0000-0x00000000071FA000-memory.dmp

Filesize
104KB

Download
memory/3136-85-0x0000000007460000-0x00000000074F6000-memory.dmp

Filesize
600KB

Download
memory/3136-88-0x0000000007420000-0x0000000007434000-memory.dmp

Filesize
80KB

Download
memory/3136-89-0x0000000007520000-0x000000000753A000-memory.dmp

Filesize
104KB

Download
memory/3136-15-0x00000000025A0000-0x00000000025D6000-memory.dmp

Filesize
216KB

Download
memory/3136-17-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3136-70-0x0000000074F10000-0x0000000074F5C000-memory.dmp

Filesize
304KB

Download
memory/3136-18-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3136-19-0x0000000005020000-0x0000000005042000-memory.dmp

Filesize
136KB

Download
memory/3136-20-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/3136-21-0x0000000005820000-0x0000000005886000-memory.dmp

Filesize
408KB

Download
memory/3136-97-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3136-48-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3136-29-0x0000000005890000-0x0000000005BE4000-memory.dmp

Filesize
3.3MB

Download
memory/4112-98-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-99-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-100-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-101-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-102-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-103-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-104-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4112-105-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/5040-4-0x00000000057A0000-0x00000000057AA000-memory.dmp

Filesize
40KB

Download
memory/5040-2-0x0000000005C60000-0x0000000006204000-memory.dmp

Filesize
5.6MB

Download
memory/5040-6-0x0000000005AF0000-0x0000000005B8C000-memory.dmp

Filesize
624KB

Download
memory/5040-7-0x0000000005AC0000-0x0000000005AE6000-memory.dmp

Filesize
152KB

Download
memory/5040-8-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/5040-3-0x00000000057B0000-0x0000000005842000-memory.dmp

Filesize
584KB

Download
memory/5040-9-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5040-5-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5040-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/5040-10-0x000000000AEC0000-0x000000000AF84000-memory.dmp

Filesize
784KB

Download
memory/5040-1-0x0000000000C90000-0x0000000000DA2000-memory.dmp

Filesize
1.1MB

Download
memory/5040-51-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5048-90-0x0000000007A80000-0x0000000007A88000-memory.dmp

Filesize
32KB

Download
memory/5048-79-0x00000000073A0000-0x00000000073BE000-memory.dmp

Filesize
120KB

Download
memory/5048-52-0x0000000006420000-0x000000000643E000-memory.dmp

Filesize
120KB

Download
memory/5048-96-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5048-50-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5048-34-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5048-55-0x0000000006460000-0x00000000064AC000-memory.dmp

Filesize
304KB

Download
memory/5048-23-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/5048-87-0x0000000007990000-0x000000000799E000-memory.dmp

Filesize
56KB

Download
memory/5048-84-0x00000000077D0000-0x00000000077DA000-memory.dmp

Filesize
40KB

Download
memory/5048-59-0x00000000073C0000-0x00000000073F2000-memory.dmp

Filesize
200KB

Download
memory/5048-81-0x0000000007600000-0x00000000076A3000-memory.dmp

Filesize
652KB

Download
memory/5048-60-0x0000000074F10000-0x0000000074F5C000-memory.dmp

Filesize
304KB

Download