remcos | 8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 05:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

payment copy.exe
Size

887KB
MD5

4f17996e37a6f17855f4d99a3952e758
SHA1

a32236cca26fa4d3eb8b2a322f41c22f5aef5f1d
SHA256

8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf
SHA512

1990ae9e17c1a78207b5588a2520676e8304f7cd431362eb5a50beb64d4ce3dc60f4e37fe874370f23199ddfe91e72801ed257a9edccbd6cfc8a3f3418c24c74
SSDEEP

12288:ZMdcDNLv2uxySCenLFFwcUXLneC8I87rFmfDJUnt2LzcNI0jJnDN8LojGByXH6:DDZEStLDwcUbeCJ3MI0L8KGg

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
3060	powershell.exe
740	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	payment copy.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 1904	2352	payment copy.exe	101

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	payment copy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	payment copy.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
1792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2352	payment copy.exe
3060	powershell.exe
740	powershell.exe
2352	payment copy.exe
2352	payment copy.exe
2352	payment copy.exe
740	powershell.exe
3060	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2352	payment copy.exe
Token: SeDebugPrivilege	3060	powershell.exe
Token: SeDebugPrivilege	740	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2352 wrote to memory of 3060	2352	payment copy.exe	94
PID 2352 wrote to memory of 3060	2352	payment copy.exe	94
PID 2352 wrote to memory of 3060	2352	payment copy.exe	94
PID 2352 wrote to memory of 740	2352	payment copy.exe	96
PID 2352 wrote to memory of 740	2352	payment copy.exe	96
PID 2352 wrote to memory of 740	2352	payment copy.exe	96
PID 2352 wrote to memory of 1792	2352	payment copy.exe	98
PID 2352 wrote to memory of 1792	2352	payment copy.exe	98
PID 2352 wrote to memory of 1792	2352	payment copy.exe	98
PID 2352 wrote to memory of 2036	2352	payment copy.exe	100
PID 2352 wrote to memory of 2036	2352	payment copy.exe	100
PID 2352 wrote to memory of 2036	2352	payment copy.exe	100
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101
PID 2352 wrote to memory of 1904	2352	payment copy.exe	101

C:\Users\Admin\AppData\Local\Temp\payment copy.exe
"C:\Users\Admin\AppData\Local\Temp\payment copy.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:2352
- 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\payment copy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3060
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FVapWeifj.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:740
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVapWeifj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE1E4.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1792
- C:\Users\Admin\AppData\Local\Temp\payment copy.exe
  "C:\Users\Admin\AppData\Local\Temp\payment copy.exe"
  2⤵
  PID:2036
- C:\Users\Admin\AppData\Local\Temp\payment copy.exe
  "C:\Users\Admin\AppData\Local\Temp\payment copy.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1904

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

Loading Replay Monitor...

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
7703ca315eba9eba6a3c6b6f80e51ca9

SHA1
3733417e5f22b7ec8d639befafb5dcf5539a9b3f

SHA256
c92c024d64c3b9b60ab91a6718c9bfd6a5862d065d63f37c89e672d74ba97d44

SHA512
775c4258f939638764759f247f03cf19647d78090c6052b4e12cefd24e1fb5bfebe43c45cf7d6dde6afcb71e8d12840861f0bf0646fc3f2991af0b252aeb3a67

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gacacwmj.5dt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE1E4.tmp

Filesize
1KB

MD5
c3bc40c36e396a4357b15f5269853251

SHA1
49969b2d064469c78b460a18d16347fcb27cc95d

SHA256
94899fb02deb95284e7b4da876083a24696e762381e76646ae334914156d99de

SHA512
7d9b09af27511ea341404967245081c7af62e7e5875a67833c9fdd57d0090f9c1919b7f56cc6bb279231436e5600ea5376b4428a0c1cd3b8bc374dd8db28b9f8

Download Submit
memory/740-85-0x0000000007C70000-0x0000000007C84000-memory.dmp

Filesize
80KB

Download
memory/740-84-0x0000000007C60000-0x0000000007C6E000-memory.dmp

Filesize
56KB

Download
memory/740-78-0x0000000008070000-0x00000000086EA000-memory.dmp

Filesize
6.5MB

Download
memory/740-94-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/740-24-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/740-67-0x000000006F370000-0x000000006F3BC000-memory.dmp

Filesize
304KB

Download
memory/740-52-0x0000000006B40000-0x0000000006B8C000-memory.dmp

Filesize
304KB

Download
memory/740-51-0x0000000006710000-0x000000000672E000-memory.dmp

Filesize
120KB

Download
memory/740-31-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/740-19-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/1904-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-80-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1904-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2352-9-0x0000000006530000-0x00000000065EE000-memory.dmp

Filesize
760KB

Download
memory/2352-8-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2352-10-0x0000000008DD0000-0x0000000008E6C000-memory.dmp

Filesize
624KB

Download
memory/2352-53-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2352-4-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/2352-7-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/2352-3-0x0000000005070000-0x0000000005102000-memory.dmp

Filesize
584KB

Download
memory/2352-6-0x00000000053D0000-0x00000000053E0000-memory.dmp

Filesize
64KB

Download
memory/2352-1-0x0000000000550000-0x0000000000634000-memory.dmp

Filesize
912KB

Download
memory/2352-2-0x0000000005620000-0x0000000005BC4000-memory.dmp

Filesize
5.6MB

Download
memory/2352-5-0x0000000005040000-0x000000000504A000-memory.dmp

Filesize
40KB

Download
memory/2352-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/3060-22-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/3060-83-0x00000000078F0000-0x0000000007901000-memory.dmp

Filesize
68KB

Download
memory/3060-82-0x0000000007970000-0x0000000007A06000-memory.dmp

Filesize
600KB

Download
memory/3060-86-0x0000000007A30000-0x0000000007A4A000-memory.dmp

Filesize
104KB

Download
memory/3060-87-0x0000000007A10000-0x0000000007A18000-memory.dmp

Filesize
32KB

Download
memory/3060-81-0x0000000007760000-0x000000000776A000-memory.dmp

Filesize
40KB

Download
memory/3060-93-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3060-79-0x00000000076F0000-0x000000000770A000-memory.dmp

Filesize
104KB

Download
memory/3060-55-0x000000006F370000-0x000000006F3BC000-memory.dmp

Filesize
304KB

Download
memory/3060-66-0x00000000075D0000-0x0000000007673000-memory.dmp

Filesize
652KB

Download
memory/3060-21-0x0000000005400000-0x0000000005422000-memory.dmp

Filesize
136KB

Download
memory/3060-54-0x00000000069B0000-0x00000000069E2000-memory.dmp

Filesize
200KB

Download
memory/3060-45-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3060-25-0x0000000005E00000-0x0000000006154000-memory.dmp

Filesize
3.3MB

Download
memory/3060-23-0x0000000005C90000-0x0000000005CF6000-memory.dmp

Filesize
408KB

Download
memory/3060-18-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3060-16-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3060-17-0x00000000055F0000-0x0000000005C18000-memory.dmp

Filesize
6.2MB

Download
memory/3060-15-0x0000000002AC0000-0x0000000002AF6000-memory.dmp

Filesize
216KB

Download
memory/3060-65-0x0000000006950000-0x000000000696E000-memory.dmp

Filesize
120KB

Download