remcos | 4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b

Analysis

max time kernel
148s
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
20-09-2024 01:18

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General

Target

4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe
Size

938KB
MD5

041848dfe86c9d7e4f84a3b4bf065075
SHA1

33ae188d83c9bdcfc1e7c37604011161564d1ad3
SHA256

4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b
SHA512

723086e68480c295cbdd57aeda44785f83cca40ef43a166a427135d3b7969fdbfc184a975a4da20b6bc66833f168477b13a50306f66ac5dcdbe95998514f6648
SSDEEP

24576:OiwEHfhzre4gZVF4tspROMsDInpvmMB/pAzDbY:/7SF4toYFqUDU

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:59321

nnamoo.duckdns.org:59321

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-41EVS0
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

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
5060	powershell.exe
3940	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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2960 set thread context of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96

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	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe
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	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.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
4024	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe
5060	powershell.exe
3940	powershell.exe
3940	powershell.exe
5060	powershell.exe
2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	3940	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 5060	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	90
PID 2960 wrote to memory of 5060	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	90
PID 2960 wrote to memory of 5060	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	90
PID 2960 wrote to memory of 3940	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	92
PID 2960 wrote to memory of 3940	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	92
PID 2960 wrote to memory of 3940	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	92
PID 2960 wrote to memory of 4024	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	94
PID 2960 wrote to memory of 4024	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	94
PID 2960 wrote to memory of 4024	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	94
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96
PID 2960 wrote to memory of 4936	2960	4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe	96

C:\Users\Admin\AppData\Local\Temp\4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe
"C:\Users\Admin\AppData\Local\Temp\4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.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:2960
- 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\4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rxEKvCaIrm.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3940
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rxEKvCaIrm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEC15.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4024
- C:\Users\Admin\AppData\Local\Temp\4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe
  "C:\Users\Admin\AppData\Local\Temp\4304f60f1efdc44fb82e632d7d6a15a62c8583aab914da08ec73b8bc709a209b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4936

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
e5366408080447a7200045d66216a29c

SHA1
ca1b0b37cdad54627f3f930c4e4d8bdc7f6aa573

SHA256
8676df1ea4251c3ab7486c6285be85d30eccdc1d5f8345a53573ad813a687724

SHA512
e9cc6e42c9cfdfaf5f635962af387003905894854531872be98f302b6bdfb3e1560e4094f661fc1170db2ee6e25ae97337ac3c78c61e75ab3c274b38adef520c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oj50tip1.ogx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpEC15.tmp

Filesize
1KB

MD5
3d7ae4d6169faeeee85bad672c765307

SHA1
833196c202d120f7c79cd960122fc3c5d2e84a84

SHA256
b90a2c792386e930c5b84a6fc52040d1b7de832b48e775e0fb2c63b12c403a54

SHA512
afca0b897a4f9c50a454b3a264af806796ab92855f48ada64ef90f45923e1de39e30e2d89a27ee68f15d7177f969bcf6e6f23dd74ad9bd6883bace4862f7df49

Download Submit
memory/2960-4-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2960-5-0x0000000004F30000-0x0000000004F3A000-memory.dmp

Filesize
40KB

Download
memory/2960-6-0x00000000052F0000-0x0000000005300000-memory.dmp

Filesize
64KB

Download
memory/2960-7-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2960-8-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2960-9-0x0000000006D70000-0x0000000006E2E000-memory.dmp

Filesize
760KB

Download
memory/2960-10-0x00000000093D0000-0x000000000946C000-memory.dmp

Filesize
624KB

Download
memory/2960-3-0x0000000004F50000-0x0000000004FE2000-memory.dmp

Filesize
584KB

Download
memory/2960-2-0x0000000005460000-0x0000000005A04000-memory.dmp

Filesize
5.6MB

Download
memory/2960-0-0x0000000074B0E000-0x0000000074B0F000-memory.dmp

Filesize
4KB

Download
memory/2960-53-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/2960-1-0x0000000000450000-0x0000000000540000-memory.dmp

Filesize
960KB

Download
memory/3940-65-0x0000000006E60000-0x0000000006E7E000-memory.dmp

Filesize
120KB

Download
memory/3940-93-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-87-0x0000000007F20000-0x0000000007F28000-memory.dmp

Filesize
32KB

Download
memory/3940-30-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-20-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-81-0x0000000007E00000-0x0000000007E11000-memory.dmp

Filesize
68KB

Download
memory/3940-43-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/3940-71-0x0000000007E60000-0x0000000007EF6000-memory.dmp

Filesize
600KB

Download
memory/3940-69-0x0000000007C50000-0x0000000007C5A000-memory.dmp

Filesize
40KB

Download
memory/3940-48-0x0000000006D00000-0x0000000006D4C000-memory.dmp

Filesize
304KB

Download
memory/3940-67-0x0000000008220000-0x000000000889A000-memory.dmp

Filesize
6.5MB

Download
memory/3940-68-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/3940-54-0x0000000006E80000-0x0000000006EB2000-memory.dmp

Filesize
200KB

Download
memory/3940-55-0x000000006FFB0000-0x000000006FFFC000-memory.dmp

Filesize
304KB

Download
memory/3940-46-0x00000000068E0000-0x00000000068FE000-memory.dmp

Filesize
120KB

Download
memory/3940-66-0x0000000007A80000-0x0000000007B23000-memory.dmp

Filesize
652KB

Download
memory/4936-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-83-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4936-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5060-70-0x000000006FFB0000-0x000000006FFFC000-memory.dmp

Filesize
304KB

Download
memory/5060-94-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-22-0x0000000005250000-0x00000000052B6000-memory.dmp

Filesize
408KB

Download
memory/5060-15-0x0000000004BC0000-0x0000000004BF6000-memory.dmp

Filesize
216KB

Download
memory/5060-16-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-23-0x00000000052C0000-0x0000000005326000-memory.dmp

Filesize
408KB

Download
memory/5060-86-0x00000000077E0000-0x00000000077FA000-memory.dmp

Filesize
104KB

Download
memory/5060-85-0x00000000076E0000-0x00000000076F4000-memory.dmp

Filesize
80KB

Download
memory/5060-84-0x00000000076D0000-0x00000000076DE000-memory.dmp

Filesize
56KB

Download
memory/5060-45-0x0000000005B40000-0x0000000005E94000-memory.dmp

Filesize
3.3MB

Download
memory/5060-18-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-19-0x0000000074B00000-0x00000000752B0000-memory.dmp

Filesize
7.7MB

Download
memory/5060-21-0x00000000051B0000-0x00000000051D2000-memory.dmp

Filesize
136KB

Download
memory/5060-17-0x00000000053D0000-0x00000000059F8000-memory.dmp

Filesize
6.2MB

Download