remcos | 2bc219aa0c642b6064f467a9abe85ccf81dfd0191377fa4453863384f22b5fa5

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-01-2025 13:35

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General

Target

REF#1162025.exe
Size

1014KB
MD5

207841acef29b5c400c1c5f2dab09a23
SHA1

f114dac28a6aab09d2df8a58c49944f46077e682
SHA256

2bc219aa0c642b6064f467a9abe85ccf81dfd0191377fa4453863384f22b5fa5
SHA512

97a077d0c1e31d500229e05e1d18f8c5b07d58d31467df7fc3d1068596774ed2536eec36eb4ec34182e1506c7d6d9db3efe0ffa3efbb690acd1df9cee29c6017
SSDEEP

12288:i5t6WhRSUun4dsUU9twXU6H4YOzXXo26Jj3vyQY2ZPLreFRqstME8sGQRu/dlIH/:c6NnicX6raXo3p3bZP0RWMRuvFKNUS

Score

10^/10

remcos 54436 discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

54436

jandupdate873.webredirect.org:45688

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
538-8Q7AZ1
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
4888	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	REF#1162025.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4056 set thread context of 4488	4056	REF#1162025.exe	102

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	REF#1162025.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REF#1162025.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
3132	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4056	REF#1162025.exe
4056	REF#1162025.exe
4056	REF#1162025.exe
4056	REF#1162025.exe
4888	powershell.exe
4888	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4056	REF#1162025.exe
Token: SeDebugPrivilege	4888	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 4056 wrote to memory of 4888	4056	REF#1162025.exe	96
PID 4056 wrote to memory of 4888	4056	REF#1162025.exe	96
PID 4056 wrote to memory of 4888	4056	REF#1162025.exe	96
PID 4056 wrote to memory of 3132	4056	REF#1162025.exe	98
PID 4056 wrote to memory of 3132	4056	REF#1162025.exe	98
PID 4056 wrote to memory of 3132	4056	REF#1162025.exe	98
PID 4056 wrote to memory of 4032	4056	REF#1162025.exe	100
PID 4056 wrote to memory of 4032	4056	REF#1162025.exe	100
PID 4056 wrote to memory of 4032	4056	REF#1162025.exe	100
PID 4056 wrote to memory of 2472	4056	REF#1162025.exe	101
PID 4056 wrote to memory of 2472	4056	REF#1162025.exe	101
PID 4056 wrote to memory of 2472	4056	REF#1162025.exe	101
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102
PID 4056 wrote to memory of 4488	4056	REF#1162025.exe	102

C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe
"C:\Users\Admin\AppData\Local\Temp\REF#1162025.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:4056
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\jrGvlsRbXsS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4888
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jrGvlsRbXsS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE4C2.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3132
- C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe
  "C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe"
  2⤵
  PID:4032
- C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe
  "C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe"
  2⤵
  PID:2472
- C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe
  "C:\Users\Admin\AppData\Local\Temp\REF#1162025.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4488

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_vgsyhjme.eyr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE4C2.tmp

Filesize
1KB

MD5
c7221e16fbabd3d48dc90c4d3c83bbe2

SHA1
ef5b556ccb6777553b1b06ef6693e4efb7ff28b8

SHA256
b3cc60d2fbaad9b457261937202ab5b54a4a9bbfa49a4514d07eb5728746d342

SHA512
9f98385376a091fe92816024e1eef95473a3b1ae593f28ec5add8eca1c8b3d6d163027a5e1bd6f90194d156e5e80d7aaf3c2a4a212cb839af2e5b8d673fb34f4

Download Submit
memory/4056-6-0x0000000005930000-0x0000000005956000-memory.dmp

Filesize
152KB

Download
memory/4056-3-0x00000000055F0000-0x0000000005682000-memory.dmp

Filesize
584KB

Download
memory/4056-4-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4056-5-0x00000000057B0000-0x00000000057BA000-memory.dmp

Filesize
40KB

Download
memory/4056-0-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/4056-7-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/4056-8-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4056-9-0x0000000009330000-0x00000000093F0000-memory.dmp

Filesize
768KB

Download
memory/4056-10-0x0000000008F50000-0x0000000008FEC000-memory.dmp

Filesize
624KB

Download
memory/4056-2-0x0000000005C70000-0x0000000006214000-memory.dmp

Filesize
5.6MB

Download
memory/4056-1-0x0000000000B10000-0x0000000000C14000-memory.dmp

Filesize
1.0MB

Download
memory/4056-30-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4488-21-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-29-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-78-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-75-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-74-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4488-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4888-18-0x0000000004DF0000-0x0000000005418000-memory.dmp

Filesize
6.2MB

Download
memory/4888-20-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4888-49-0x0000000006050000-0x0000000006082000-memory.dmp

Filesize
200KB

Download
memory/4888-50-0x0000000071580000-0x00000000715CC000-memory.dmp

Filesize
304KB

Download
memory/4888-60-0x0000000005F90000-0x0000000005FAE000-memory.dmp

Filesize
120KB

Download
memory/4888-61-0x0000000006C50000-0x0000000006CF3000-memory.dmp

Filesize
652KB

Download
memory/4888-62-0x00000000073C0000-0x0000000007A3A000-memory.dmp

Filesize
6.5MB

Download
memory/4888-63-0x0000000006D80000-0x0000000006D9A000-memory.dmp

Filesize
104KB

Download
memory/4888-64-0x0000000006DF0000-0x0000000006DFA000-memory.dmp

Filesize
40KB

Download
memory/4888-65-0x0000000007000000-0x0000000007096000-memory.dmp

Filesize
600KB

Download
memory/4888-66-0x0000000006F80000-0x0000000006F91000-memory.dmp

Filesize
68KB

Download
memory/4888-67-0x0000000006FB0000-0x0000000006FBE000-memory.dmp

Filesize
56KB

Download
memory/4888-68-0x0000000006FC0000-0x0000000006FD4000-memory.dmp

Filesize
80KB

Download
memory/4888-69-0x00000000070C0000-0x00000000070DA000-memory.dmp

Filesize
104KB

Download
memory/4888-70-0x00000000070A0000-0x00000000070A8000-memory.dmp

Filesize
32KB

Download
memory/4888-73-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4888-43-0x0000000005FD0000-0x000000000601C000-memory.dmp

Filesize
304KB

Download
memory/4888-26-0x0000000004C90000-0x0000000004CB2000-memory.dmp

Filesize
136KB

Download
memory/4888-42-0x0000000005A80000-0x0000000005A9E000-memory.dmp

Filesize
120KB

Download
memory/4888-27-0x0000000004D30000-0x0000000004D96000-memory.dmp

Filesize
408KB

Download
memory/4888-31-0x0000000005490000-0x00000000057E4000-memory.dmp

Filesize
3.3MB

Download
memory/4888-28-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/4888-19-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4888-17-0x0000000074D90000-0x0000000075540000-memory.dmp

Filesize
7.7MB

Download
memory/4888-15-0x0000000000CC0000-0x0000000000CF6000-memory.dmp

Filesize
216KB

Download