remcos | 1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c

Analysis

max time kernel
149s
max time network
126s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-01-2025 20:06

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General

Target

1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
Size

1.8MB
MD5

47e16eecea5d98c92e3de14be4b23638
SHA1

dda8f48b6fd2c2d910e5d1ebf350c0d072ee99bd
SHA256

1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c
SHA512

0f9f600625a3861af274c6465f65e0f2893f565c646262f7df241db2c68c186d492676250f5a6ee8eb39e05383bb8e24bd06bb761ba47b0b757866e29ade7545
SSDEEP

49152:bVg5tQ7aB9CsMXcHuc7cABmaN6EkyiSws2z0E8C5:xg56oC8fcSC0i1z

Score

10^/10

remcos valdo collection discovery rat

Malware Config

Extracted

Family

remcos

Botnet

Valdo

janout21oadstse1.duckdns.org:57484

janout21oadstse1.duckdns.org:57483

janout21oadstse2.duckdns.org:57484

janout21oadstse3.duckdns.org:57484

janout21oadstse4.duckdns.org:57484

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
true
install_flag
false
keylog_crypt
false
keylog_file
amaonspt.dat
keylog_flag
false
keylog_path
%AppData%
mouse_option
false
mutex
lmoijuetgtso-NJWMZX
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
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

Detected Nirsoft tools 7 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2972-47-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2932-49-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2680-48-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2932-43-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2680-42-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2680-54-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2932-58-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2932-49-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2932-43-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2932-58-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2680-48-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2680-42-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2680-54-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Sancerre.vbs	Sancerre.exe

Executes dropped EXE 1 IoCs

pid	Process
1272	Sancerre.exe

Loads dropped DLL 1 IoCs

pid	Process
1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	svchost.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0008000000016fdf-4.dat	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1272 set thread context of 1776	1272	Sancerre.exe	31
PID 1776 set thread context of 2680	1776	svchost.exe	34
PID 1776 set thread context of 2932	1776	svchost.exe	35
PID 1776 set thread context of 2972	1776	svchost.exe	36

System Location Discovery: System Language Discovery 1 TTPs 6 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	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sancerre.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2680	svchost.exe
2680	svchost.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
1272	Sancerre.exe
1776	svchost.exe
1776	svchost.exe
1776	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	svchost.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
1272	Sancerre.exe
1272	Sancerre.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
1272	Sancerre.exe
1272	Sancerre.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1776	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1076 wrote to memory of 1272	1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe	30
PID 1076 wrote to memory of 1272	1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe	30
PID 1076 wrote to memory of 1272	1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe	30
PID 1076 wrote to memory of 1272	1076	1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe	30
PID 1272 wrote to memory of 1776	1272	Sancerre.exe	31
PID 1272 wrote to memory of 1776	1272	Sancerre.exe	31
PID 1272 wrote to memory of 1776	1272	Sancerre.exe	31
PID 1272 wrote to memory of 1776	1272	Sancerre.exe	31
PID 1272 wrote to memory of 1776	1272	Sancerre.exe	31
PID 1776 wrote to memory of 2680	1776	svchost.exe	34
PID 1776 wrote to memory of 2680	1776	svchost.exe	34
PID 1776 wrote to memory of 2680	1776	svchost.exe	34
PID 1776 wrote to memory of 2680	1776	svchost.exe	34
PID 1776 wrote to memory of 2680	1776	svchost.exe	34
PID 1776 wrote to memory of 2932	1776	svchost.exe	35
PID 1776 wrote to memory of 2932	1776	svchost.exe	35
PID 1776 wrote to memory of 2932	1776	svchost.exe	35
PID 1776 wrote to memory of 2932	1776	svchost.exe	35
PID 1776 wrote to memory of 2932	1776	svchost.exe	35
PID 1776 wrote to memory of 2972	1776	svchost.exe	36
PID 1776 wrote to memory of 2972	1776	svchost.exe	36
PID 1776 wrote to memory of 2972	1776	svchost.exe	36
PID 1776 wrote to memory of 2972	1776	svchost.exe	36
PID 1776 wrote to memory of 2972	1776	svchost.exe	36

C:\Users\Admin\AppData\Local\Temp\1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe
"C:\Users\Admin\AppData\Local\Temp\1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1076
- C:\Users\Admin\AppData\Local\leucoryx\Sancerre.exe
  "C:\Users\Admin\AppData\Local\Temp\1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1272
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1776
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\rzisayilolebmxkiflwnmclmiyidw"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2680
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\cuolbqtmctwgoehmowrpxhfdqeamponxn"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:2932
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\ewtvb"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2972

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\rzisayilolebmxkiflwnmclmiyidw

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
\Users\Admin\AppData\Local\leucoryx\Sancerre.exe

Filesize
1.8MB

MD5
47e16eecea5d98c92e3de14be4b23638

SHA1
dda8f48b6fd2c2d910e5d1ebf350c0d072ee99bd

SHA256
1218876bc6c34ebcc73be253436e4a48e83c36ddc71b35cc10265073adce380c

SHA512
0f9f600625a3861af274c6465f65e0f2893f565c646262f7df241db2c68c186d492676250f5a6ee8eb39e05383bb8e24bd06bb761ba47b0b757866e29ade7545

Download Submit
memory/1076-2-0x0000000002C70000-0x0000000002D70000-memory.dmp

Filesize
1024KB

Download
memory/1272-12-0x0000000002A30000-0x0000000002B30000-memory.dmp

Filesize
1024KB

Download
memory/1776-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-64-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-16-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-15-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-24-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-20-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-26-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-31-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-68-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-67-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-66-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-65-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-59-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1776-17-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1776-62-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1776-63-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2680-42-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2680-48-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2680-54-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2680-40-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2680-34-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2680-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2932-41-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2932-43-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2932-49-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2932-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2932-37-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2972-45-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2972-46-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2972-47-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download