remcos | b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4

Analysis

max time kernel
147s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-12-2024 03:17

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General

Target

b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
Size

1.1MB
MD5

3b84dce82113710e5ae3f379ebd9fa13
SHA1

26df2f5f9ba223ce4848586582172c9c20516416
SHA256

b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4
SHA512

299ed1e965189ff3d25bd6e12790d93648c0d69959eeab8d5d7c4563c3488764eadf968855782d50d68c98d67a6a63be80828367ec704a102c407ebd7a2fa871
SSDEEP

24576:wHeZDOyc0wCqMXY1nhtFUSU6xNP1cQYY:wHbLm4ftFzx7c

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

45.149.241.204:435

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-DX92V7
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 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1308	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 208 set thread context of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100

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	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
3604	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
1308	powershell.exe
1308	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
Token: SeDebugPrivilege	1308	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 1308	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	95
PID 208 wrote to memory of 1308	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	95
PID 208 wrote to memory of 1308	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	95
PID 208 wrote to memory of 3604	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	97
PID 208 wrote to memory of 3604	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	97
PID 208 wrote to memory of 3604	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	97
PID 208 wrote to memory of 1564	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	99
PID 208 wrote to memory of 1564	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	99
PID 208 wrote to memory of 1564	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	99
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100
PID 208 wrote to memory of 4616	208	b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe	100

C:\Users\Admin\AppData\Local\Temp\b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
"C:\Users\Admin\AppData\Local\Temp\b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.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:208
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OZIxXQGIP.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1308
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OZIxXQGIP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFACB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3604
- C:\Users\Admin\AppData\Local\Temp\b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
  "C:\Users\Admin\AppData\Local\Temp\b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe"
  2⤵
  PID:1564
- C:\Users\Admin\AppData\Local\Temp\b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe
  "C:\Users\Admin\AppData\Local\Temp\b25e19cd5dc45047c4ad68fbe940dd1f923800201666adf9164ec5fe5d74f6e4.exe"
  2⤵
  PID:4616

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_srnjz03q.vxf.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
1KB

MD5
4340f78ec9e5eef79a7cd9ebb44df160

SHA1
ddcdfc9d23e40a832cf406e34a4109cec374cc97

SHA256
e763e833b5f04f1520ec3638dcdedb6a995f69f5c83c599a0c69a0e48dbf40d6

SHA512
58109b164616248176fdd468e614cdfe5e007477b6a44625488432d5f7c9951d9d6d8de6631dd0b9ceef3b120c721a0b1ae865bcf6690d29bd48a802a2d2d7ac

Download Submit
memory/208-6-0x0000000007A60000-0x0000000007A78000-memory.dmp

Filesize
96KB

Download
memory/208-3-0x00000000075B0000-0x0000000007642000-memory.dmp

Filesize
584KB

Download
memory/208-4-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/208-5-0x0000000002A00000-0x0000000002A0A000-memory.dmp

Filesize
40KB

Download
memory/208-28-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/208-7-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/208-8-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/208-9-0x0000000008D60000-0x0000000008E22000-memory.dmp

Filesize
776KB

Download
memory/208-10-0x0000000006320000-0x00000000063BC000-memory.dmp

Filesize
624KB

Download
memory/208-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/208-2-0x0000000007A80000-0x0000000008024000-memory.dmp

Filesize
5.6MB

Download
memory/208-1-0x00000000005E0000-0x00000000006F4000-memory.dmp

Filesize
1.1MB

Download
memory/1308-36-0x0000000005C00000-0x0000000005F54000-memory.dmp

Filesize
3.3MB

Download
memory/1308-55-0x00000000073D0000-0x0000000007473000-memory.dmp

Filesize
652KB

Download
memory/1308-67-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1308-64-0x0000000007820000-0x0000000007828000-memory.dmp

Filesize
32KB

Download
memory/1308-26-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1308-63-0x0000000007840000-0x000000000785A000-memory.dmp

Filesize
104KB

Download
memory/1308-20-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1308-62-0x0000000007740000-0x0000000007754000-memory.dmp

Filesize
80KB

Download
memory/1308-29-0x0000000005B20000-0x0000000005B86000-memory.dmp

Filesize
408KB

Download
memory/1308-30-0x0000000005B90000-0x0000000005BF6000-memory.dmp

Filesize
408KB

Download
memory/1308-18-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1308-16-0x0000000005480000-0x0000000005AA8000-memory.dmp

Filesize
6.2MB

Download
memory/1308-15-0x00000000028D0000-0x0000000002906000-memory.dmp

Filesize
216KB

Download
memory/1308-27-0x0000000005420000-0x0000000005442000-memory.dmp

Filesize
136KB

Download
memory/1308-41-0x00000000061D0000-0x00000000061EE000-memory.dmp

Filesize
120KB

Download
memory/1308-42-0x0000000006280000-0x00000000062CC000-memory.dmp

Filesize
304KB

Download
memory/1308-43-0x00000000067A0000-0x00000000067D2000-memory.dmp

Filesize
200KB

Download
memory/1308-44-0x0000000072400000-0x000000007244C000-memory.dmp

Filesize
304KB

Download
memory/1308-54-0x0000000006770000-0x000000000678E000-memory.dmp

Filesize
120KB

Download
memory/1308-61-0x0000000007730000-0x000000000773E000-memory.dmp

Filesize
56KB

Download
memory/1308-56-0x0000000007B40000-0x00000000081BA000-memory.dmp

Filesize
6.5MB

Download
memory/1308-57-0x0000000007500000-0x000000000751A000-memory.dmp

Filesize
104KB

Download
memory/1308-58-0x0000000007570000-0x000000000757A000-memory.dmp

Filesize
40KB

Download
memory/1308-59-0x0000000007780000-0x0000000007816000-memory.dmp

Filesize
600KB

Download
memory/1308-60-0x0000000007700000-0x0000000007711000-memory.dmp

Filesize
68KB

Download
memory/4616-69-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-24-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-68-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-70-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-72-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-71-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4616-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download