remcos | 5614f9b688d36caebfa76a05a4e128940e3fc845343f466fefe463dcf64dc622

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 01:48

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General

Target

3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
Size

1.0MB
MD5

e27d56543ed9f63f27ce9de7222059ab
SHA1

6dd4fb5f2a72f055b2dda672a731fd7adf63aaa0
SHA256

3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d
SHA512

9b36200aa2d45043d3e4e12c6ef308c6f0fd6616900dc29524cd79b5bebc4d1cd0ecc27884b00ce491a85143c444d2e7d7c2e69573204146bf1250239a20f01c
SSDEEP

24576:9J23hprGGlw6WuIy4HVHPA6DKostY3foGnoXnUrvSA:9J2TqGlauIy4HlDKoOmfX2

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

91.92.241.171:89

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
Rmc-ERWHKE
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

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
2584	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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4336 set thread context of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2312	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
2584	powershell.exe
2584	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
Token: SeDebugPrivilege	2584	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4336 wrote to memory of 2584	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	94
PID 4336 wrote to memory of 2584	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	94
PID 4336 wrote to memory of 2584	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	94
PID 4336 wrote to memory of 2312	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	96
PID 4336 wrote to memory of 2312	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	96
PID 4336 wrote to memory of 2312	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	96
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98
PID 4336 wrote to memory of 4896	4336	3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe	98

C:\Users\Admin\AppData\Local\Temp\3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
"C:\Users\Admin\AppData\Local\Temp\3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.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:4336
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gTtHsFyH.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2584
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gTtHsFyH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE30D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2312
- C:\Users\Admin\AppData\Local\Temp\3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe
  "C:\Users\Admin\AppData\Local\Temp\3c1f8c10253bfe7388f5d51391a2253b56e348f92ec68ad70f78a4d7f526147d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4896

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_wbset5ak.rqd.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE30D.tmp

Filesize
1KB

MD5
9e2e9c53c855e2190e3c0637315ace6d

SHA1
7175283ef9db2100baf77bdce5d9ba784a68ecbc

SHA256
2789b187fad6f7e5293c755d8100cc5306bba27e6a3b2d82af24534b4147fabd

SHA512
69a0818d7d5f63e6001cb3d0a560aafecef36ab3f2fb1731687e9dff2d661ad88873f936e3917143d83a51961104db47c08f1fad92c9c0cfd23cc8e07f111d05

Download Submit
memory/2584-42-0x0000000006440000-0x000000000645E000-memory.dmp

Filesize
120KB

Download
memory/2584-69-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2584-66-0x0000000007A80000-0x0000000007A88000-memory.dmp

Filesize
32KB

Download
memory/2584-65-0x0000000007AA0000-0x0000000007ABA000-memory.dmp

Filesize
104KB

Download
memory/2584-64-0x00000000079A0000-0x00000000079B4000-memory.dmp

Filesize
80KB

Download
memory/2584-63-0x0000000007990000-0x000000000799E000-memory.dmp

Filesize
56KB

Download
memory/2584-43-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2584-62-0x0000000007960000-0x0000000007971000-memory.dmp

Filesize
68KB

Download
memory/2584-61-0x00000000079E0000-0x0000000007A76000-memory.dmp

Filesize
600KB

Download
memory/2584-60-0x00000000077D0000-0x00000000077DA000-memory.dmp

Filesize
40KB

Download
memory/2584-59-0x0000000006B20000-0x0000000006B3A000-memory.dmp

Filesize
104KB

Download
memory/2584-17-0x0000000002B10000-0x0000000002B46000-memory.dmp

Filesize
216KB

Download
memory/2584-58-0x0000000007E10000-0x000000000848A000-memory.dmp

Filesize
6.5MB

Download
memory/2584-19-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2584-20-0x0000000005700000-0x0000000005D28000-memory.dmp

Filesize
6.2MB

Download
memory/2584-57-0x00000000076E0000-0x0000000007783000-memory.dmp

Filesize
652KB

Download
memory/2584-45-0x0000000006970000-0x00000000069A2000-memory.dmp

Filesize
200KB

Download
memory/2584-56-0x0000000006950000-0x000000000696E000-memory.dmp

Filesize
120KB

Download
memory/2584-26-0x0000000005490000-0x00000000054F6000-memory.dmp

Filesize
408KB

Download
memory/2584-46-0x0000000075340000-0x000000007538C000-memory.dmp

Filesize
304KB

Download
memory/2584-44-0x00000000064D0000-0x000000000651C000-memory.dmp

Filesize
304KB

Download
memory/2584-29-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/2584-37-0x0000000005D30000-0x0000000006084000-memory.dmp

Filesize
3.3MB

Download
memory/2584-25-0x0000000005420000-0x0000000005486000-memory.dmp

Filesize
408KB

Download
memory/2584-24-0x0000000005380000-0x00000000053A2000-memory.dmp

Filesize
136KB

Download
memory/4336-7-0x0000000005680000-0x0000000005688000-memory.dmp

Filesize
32KB

Download
memory/4336-3-0x00000000051E0000-0x0000000005272000-memory.dmp

Filesize
584KB

Download
memory/4336-6-0x0000000005660000-0x000000000567A000-memory.dmp

Filesize
104KB

Download
memory/4336-36-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/4336-8-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

Filesize
4KB

Download
memory/4336-10-0x0000000002BC0000-0x0000000002BCC000-memory.dmp

Filesize
48KB

Download
memory/4336-5-0x0000000005280000-0x000000000528A000-memory.dmp

Filesize
40KB

Download
memory/4336-1-0x0000000000700000-0x000000000080E000-memory.dmp

Filesize
1.1MB

Download
memory/4336-0-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

Filesize
4KB

Download
memory/4336-2-0x0000000005890000-0x0000000005E34000-memory.dmp

Filesize
5.6MB

Download
memory/4336-12-0x00000000066A0000-0x000000000673C000-memory.dmp

Filesize
624KB

Download
memory/4336-11-0x0000000006540000-0x0000000006600000-memory.dmp

Filesize
768KB

Download
memory/4336-4-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/4336-9-0x0000000074AB0000-0x0000000075260000-memory.dmp

Filesize
7.7MB

Download
memory/4896-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4896-82-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download