remcos | f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-10-2024 16:05

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General

Target

f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
Size

908KB
MD5

7b9844639ef183122af8383ce901b8e0
SHA1

87514d622f74e94720cd77243326dd8c8217dfae
SHA256

f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b
SHA512

c98ad33821fbe4f71480a3ea36133d47dafbbb41dda3c3dc31ff4d6755491ea42a5418179e3f7f9d27fddb55a9b933ae221650b850a53096c6a216d39e151bf0
SSDEEP

24576:XO++gHdGXYcihGy+XKjHjjxHqHlngC9fnfyQ5G/:XO++gHdGXYcT7XkjFHqHlgY6/

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.3.101.137:5980

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-DO8TMQ
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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4080	powershell.exe
3660	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3592 set thread context of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99

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	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.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	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
4460	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
4080	powershell.exe
3660	powershell.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
4080	powershell.exe
3660	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
Token: SeDebugPrivilege	4080	powershell.exe
Token: SeDebugPrivilege	3660	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1348	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3592 wrote to memory of 4080	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	91
PID 3592 wrote to memory of 4080	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	91
PID 3592 wrote to memory of 4080	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	91
PID 3592 wrote to memory of 3660	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	93
PID 3592 wrote to memory of 3660	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	93
PID 3592 wrote to memory of 3660	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	93
PID 3592 wrote to memory of 4460	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	95
PID 3592 wrote to memory of 4460	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	95
PID 3592 wrote to memory of 4460	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	95
PID 3592 wrote to memory of 5032	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	97
PID 3592 wrote to memory of 5032	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	97
PID 3592 wrote to memory of 5032	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	97
PID 3592 wrote to memory of 4396	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	98
PID 3592 wrote to memory of 4396	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	98
PID 3592 wrote to memory of 4396	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	98
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99
PID 3592 wrote to memory of 1348	3592	f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe	99

C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
"C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.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:3592
- 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\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4080
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JhWUOJ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3660
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JhWUOJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4460
- C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
  "C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe"
  2⤵
  PID:5032
- C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
  "C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe"
  2⤵
  PID:4396
- C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe
  "C:\Users\Admin\AppData\Local\Temp\f62f5c6710e7609e4ba0172304f9887df37064c6f1aec70efac871eb3683085b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1348

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:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
f9b7744ce30470d92eceb45c585331f3

SHA1
9a9957fcd7207347ebeac6876482378646551c3e

SHA256
4ea717e1a7fd43f96f591628daaa90dce1fe34bc94ac501bcef612f0d47d8957

SHA512
b711cdff3c111961adaea26cbce72336e7752bf1b3cdaeffcd2935034df87cda1d5b89fe2ee279eda795e38b3e6cd4e6c67d286e3fcf3df621d335c35d953f4a

Download Submit
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
3b3b4cfecb92f33c00e36867bed9085a

SHA1
3150462a943a97a169b4931f726b892cc1a1e173

SHA256
5b04b9931aabf3fb54189e65a8647056101c39f0006c7577a006ee6c36a1735e

SHA512
08c5d87f76b07bf3097c5fb2a454007bc4b75302cf15867481b4de76e063c370b0220c17b864aed68d46f1a7e748911eecfbab004da5fd4a69b9e3cf338594ff

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cu0lgmz5.231.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB7.tmp

Filesize
1KB

MD5
35ba0cb86d343565196d9342cda8d271

SHA1
f160284182d6e8506a59f6bd7aeaac0eba6bccfc

SHA256
ea1315d33e8b5eb08576641f310231875037faa43d371c0a786add2b476164fa

SHA512
b9cb13ed406669c3283659b68fdc8c3e2e9a4deb18a9b6929c5f0cd619918b743be00d5fc075f8246a558bdcab566e1fe47ce1a40dfe8f7705b2f2e36d66b2d2

Download Submit
memory/1348-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-90-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-125-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-118-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-117-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1348-45-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3592-56-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3592-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/3592-4-0x0000000004D90000-0x0000000004D9A000-memory.dmp

Filesize
40KB

Download
memory/3592-7-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/3592-8-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3592-9-0x00000000063C0000-0x0000000006480000-memory.dmp

Filesize
768KB

Download
memory/3592-5-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3592-3-0x0000000004C00000-0x0000000004C92000-memory.dmp

Filesize
584KB

Download
memory/3592-10-0x0000000008A60000-0x0000000008AFC000-memory.dmp

Filesize
624KB

Download
memory/3592-2-0x0000000005110000-0x00000000056B4000-memory.dmp

Filesize
5.6MB

Download
memory/3592-1-0x0000000000120000-0x000000000020A000-memory.dmp

Filesize
936KB

Download
memory/3592-6-0x0000000006250000-0x0000000006260000-memory.dmp

Filesize
64KB

Download
memory/3660-89-0x0000000007880000-0x0000000007891000-memory.dmp

Filesize
68KB

Download
memory/3660-102-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3660-35-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3660-94-0x00000000079C0000-0x00000000079DA000-memory.dmp

Filesize
104KB

Download
memory/3660-64-0x000000006F0F0000-0x000000006F13C000-memory.dmp

Filesize
304KB

Download
memory/3660-92-0x00000000078B0000-0x00000000078BE000-memory.dmp

Filesize
56KB

Download
memory/3660-24-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3660-84-0x0000000007520000-0x00000000075C3000-memory.dmp

Filesize
652KB

Download
memory/3660-85-0x0000000007CC0000-0x000000000833A000-memory.dmp

Filesize
6.5MB

Download
memory/3660-47-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/3660-87-0x00000000076F0000-0x00000000076FA000-memory.dmp

Filesize
40KB

Download
memory/3660-88-0x0000000007900000-0x0000000007996000-memory.dmp

Filesize
600KB

Download
memory/4080-18-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4080-86-0x0000000006F00000-0x0000000006F1A000-memory.dmp

Filesize
104KB

Download
memory/4080-75-0x0000000006DA0000-0x0000000006DBE000-memory.dmp

Filesize
120KB

Download
memory/4080-62-0x0000000006190000-0x00000000061C2000-memory.dmp

Filesize
200KB

Download
memory/4080-93-0x0000000007140000-0x0000000007154000-memory.dmp

Filesize
80KB

Download
memory/4080-63-0x000000006F0F0000-0x000000006F13C000-memory.dmp

Filesize
304KB

Download
memory/4080-95-0x0000000007220000-0x0000000007228000-memory.dmp

Filesize
32KB

Download
memory/4080-57-0x0000000005EC0000-0x0000000005F0C000-memory.dmp

Filesize
304KB

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memory/4080-54-0x0000000005BB0000-0x0000000005BCE000-memory.dmp

Filesize
120KB

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memory/4080-101-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

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memory/4080-21-0x0000000005360000-0x0000000005382000-memory.dmp

Filesize
136KB

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memory/4080-22-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

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memory/4080-34-0x0000000005610000-0x0000000005964000-memory.dmp

Filesize
3.3MB

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memory/4080-23-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

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memory/4080-19-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

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memory/4080-17-0x0000000004D00000-0x0000000005328000-memory.dmp

Filesize
6.2MB

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memory/4080-16-0x00000000747A0000-0x0000000074F50000-memory.dmp

Filesize
7.7MB

Download
memory/4080-15-0x0000000002300000-0x0000000002336000-memory.dmp

Filesize
216KB

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