remcos | 4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2024 02:40

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General

Target

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
Size

1.0MB
MD5

7fe5f3f1d077626ddad8406b7975ed87
SHA1

23eba4f75b7960d9edd9679515771cc8ccfe0372
SHA256

4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee
SHA512

70ff042c59b1fd4b0ffa18002d239e65ffdc32f7df2d079ba596551de2d23849d236eedcfb580d82e84cc68a2c911af295ef66458f56162bd89753484c9861d8
SSDEEP

24576:32CGzbZCkrpm1sHsqgQYKY4agvoR5ORGIemTzEp6VBw:32CGzbokNMqgQeOAKU1

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

41.216.183.218:56792

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-I5RS8V
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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2700	powershell.exe
1168	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	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1420 set thread context of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.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 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	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	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.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
1072	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
1168	powershell.exe
2700	powershell.exe
1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
1168	powershell.exe
2700	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
Token: SeDebugPrivilege	2700	powershell.exe
Token: SeDebugPrivilege	1168	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2700	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	96
PID 1420 wrote to memory of 2700	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	96
PID 1420 wrote to memory of 2700	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	96
PID 1420 wrote to memory of 1168	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	98
PID 1420 wrote to memory of 1168	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	98
PID 1420 wrote to memory of 1168	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	98
PID 1420 wrote to memory of 1072	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	100
PID 1420 wrote to memory of 1072	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	100
PID 1420 wrote to memory of 1072	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	100
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102
PID 1420 wrote to memory of 4124	1420	4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe	102

C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
"C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.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:1420
- 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\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2700
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fanBYIAxatVKe.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1168
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fanBYIAxatVKe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE7FE.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1072
- C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe
  "C:\Users\Admin\AppData\Local\Temp\4bcc9f3996381f8da70f1f1b03186ae93d894c42ac15e7afe7370f77a1f53cee.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4124

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
5e8e496ad33d2b8d55703485357ff5ac

SHA1
684ff7ed5c678d8ef27e2a26505a825129740252

SHA256
3563d314e30091afd89ebf040d547914002ea1ae6cd268a976217d461c2177e2

SHA512
93bbaa3f3f4d1498e5369904d9acd48654b387cc866450690af6901987cb92a8e1cf73f7003d1f393ba9a4beb90cbbd79bbaedbb66b76431eefed8c3c1f85aab

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1rnjkmfn.c13.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE7FE.tmp

Filesize
1KB

MD5
dd56ac9be6a6ddf271fd528c18c57108

SHA1
a6a37cd1d93d9ac961791dbab14197e485352180

SHA256
391f6625bd0d3761a324a66eeab173978ff372ffc0d8844eea83f5de849fcc95

SHA512
8226a0e5d5d405b2e3271dc1442724a458f69665679c4b32ffe61e0c3722b9e1b7a4f3a299c4817357440e4558343781ef2031790f95f9112b92dff27458481b

Download Submit
memory/1168-50-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1168-23-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1168-82-0x00000000077B0000-0x0000000007853000-memory.dmp

Filesize
652KB

Download
memory/1168-85-0x0000000007B60000-0x0000000007B6A000-memory.dmp

Filesize
40KB

Download
memory/1168-86-0x0000000007D70000-0x0000000007E06000-memory.dmp

Filesize
600KB

Download
memory/1168-87-0x0000000007CF0000-0x0000000007D01000-memory.dmp

Filesize
68KB

Download
memory/1168-90-0x0000000007E30000-0x0000000007E4A000-memory.dmp

Filesize
104KB

Download
memory/1168-40-0x0000000006160000-0x00000000061C6000-memory.dmp

Filesize
408KB

Download
memory/1168-72-0x0000000075520000-0x000000007556C000-memory.dmp

Filesize
304KB

Download
memory/1168-36-0x00000000060F0000-0x0000000006156000-memory.dmp

Filesize
408KB

Download
memory/1168-98-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1168-91-0x0000000007E10000-0x0000000007E18000-memory.dmp

Filesize
32KB

Download
memory/1168-24-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1420-11-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1420-12-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1420-3-0x0000000004E90000-0x0000000004F22000-memory.dmp

Filesize
584KB

Download
memory/1420-4-0x0000000004E30000-0x0000000004E3A000-memory.dmp

Filesize
40KB

Download
memory/1420-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

Filesize
4KB

Download
memory/1420-1-0x0000000000320000-0x0000000000424000-memory.dmp

Filesize
1.0MB

Download
memory/1420-13-0x00000000067E0000-0x00000000068A0000-memory.dmp

Filesize
768KB

Download
memory/1420-2-0x00000000053A0000-0x0000000005944000-memory.dmp

Filesize
5.6MB

Download
memory/1420-5-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1420-52-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/1420-10-0x00000000065C0000-0x00000000065DC000-memory.dmp

Filesize
112KB

Download
memory/1420-9-0x0000000005210000-0x0000000005232000-memory.dmp

Filesize
136KB

Download
memory/1420-8-0x0000000005110000-0x0000000005122000-memory.dmp

Filesize
72KB

Download
memory/1420-7-0x0000000005170000-0x000000000520C000-memory.dmp

Filesize
624KB

Download
memory/1420-6-0x0000000005950000-0x0000000005CA4000-memory.dmp

Filesize
3.3MB

Download
memory/2700-19-0x00000000059C0000-0x0000000005FE8000-memory.dmp

Filesize
6.2MB

Download
memory/2700-88-0x0000000007D40000-0x0000000007D4E000-memory.dmp

Filesize
56KB

Download
memory/2700-57-0x0000000006820000-0x000000000686C000-memory.dmp

Filesize
304KB

Download
memory/2700-56-0x00000000067E0000-0x00000000067FE000-memory.dmp

Filesize
120KB

Download
memory/2700-97-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2700-61-0x0000000075520000-0x000000007556C000-memory.dmp

Filesize
304KB

Download
memory/2700-60-0x0000000006DB0000-0x0000000006DE2000-memory.dmp

Filesize
200KB

Download
memory/2700-18-0x0000000005220000-0x0000000005256000-memory.dmp

Filesize
216KB

Download
memory/2700-71-0x00000000079A0000-0x00000000079BE000-memory.dmp

Filesize
120KB

Download
memory/2700-20-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2700-84-0x0000000007B10000-0x0000000007B2A000-memory.dmp

Filesize
104KB

Download
memory/2700-83-0x0000000008150000-0x00000000087CA000-memory.dmp

Filesize
6.5MB

Download
memory/2700-21-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2700-25-0x0000000074C90000-0x0000000075440000-memory.dmp

Filesize
7.7MB

Download
memory/2700-89-0x0000000007D50000-0x0000000007D64000-memory.dmp

Filesize
80KB

Download
memory/4124-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-32-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-26-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-59-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4124-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download