remcos | 199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 14:34

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
Size

863KB
MD5

57f7d9095490a4aadda9e261fec73a68
SHA1

45e51f97abc52dd29e65d7ec78e18ee8d1721867
SHA256

199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d
SHA512

80512a3188e69746425f828e394a0bf9ea6b50b4dda5b5f0b819248610d58d6fbd7862f29d42266f473515e60eadb2b5038c3ee9f7f9b26bb0a22981552f1810
SSDEEP

24576:Krl6kD68JmlotQfnkSjkpoftUXoBmZieeiftIZpr:4l328U2yfnrQaZoZiEFIZp

Score

10^/10

remcos remotehost collection discovery rat spyware stealer upx

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.210.150.26:8787

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-R1T905
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
Remcos family
remcos

Detected Nirsoft tools 5 IoCs

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

resource	yara_rule
behavioral2/memory/5004-63-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1080-64-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2808-56-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1080-55-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1080-66-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2808-56-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/1080-64-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1080-55-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/1080-66-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Drops startup file 1 IoCs

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

Executes dropped EXE 5 IoCs

pid	Process
1644	bankrupture.exe
4564	bankrupture.exe
1080	bankrupture.exe
2808	bankrupture.exe
5004	bankrupture.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	bankrupture.exe

AutoIT Executable 4 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2440-13-0x0000000000620000-0x00000000007FC000-memory.dmp	autoit_exe
behavioral2/memory/1644-26-0x0000000000520000-0x00000000006FC000-memory.dmp	autoit_exe
behavioral2/memory/4564-34-0x0000000001810000-0x0000000001C10000-memory.dmp	autoit_exe
behavioral2/memory/4564-75-0x0000000000520000-0x00000000006FC000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4564 set thread context of 1080	4564	bankrupture.exe	88
PID 4564 set thread context of 2808	4564	bankrupture.exe	89
PID 4564 set thread context of 5004	4564	bankrupture.exe	90

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2440-0-0x0000000000620000-0x00000000007FC000-memory.dmp	upx
behavioral2/files/0x000a000000023b9e-10.dat	upx
behavioral2/memory/1644-11-0x0000000000520000-0x00000000006FC000-memory.dmp	upx
behavioral2/memory/2440-13-0x0000000000620000-0x00000000007FC000-memory.dmp	upx
behavioral2/memory/1644-26-0x0000000000520000-0x00000000006FC000-memory.dmp	upx
behavioral2/memory/4564-75-0x0000000000520000-0x00000000006FC000-memory.dmp	upx

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	bankrupture.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bankrupture.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bankrupture.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bankrupture.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bankrupture.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1080	bankrupture.exe
1080	bankrupture.exe
5004	bankrupture.exe
5004	bankrupture.exe
1080	bankrupture.exe
1080	bankrupture.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4564	bankrupture.exe
4564	bankrupture.exe
4564	bankrupture.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	bankrupture.exe

Suspicious use of FindShellTrayWindow 9 IoCs

pid	Process
2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
1644	bankrupture.exe
1644	bankrupture.exe
1644	bankrupture.exe
4564	bankrupture.exe
4564	bankrupture.exe
4564	bankrupture.exe

Suspicious use of SendNotifyMessage 9 IoCs

pid	Process
2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
1644	bankrupture.exe
1644	bankrupture.exe
1644	bankrupture.exe
4564	bankrupture.exe
4564	bankrupture.exe
4564	bankrupture.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 1644	2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe	82
PID 2440 wrote to memory of 1644	2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe	82
PID 2440 wrote to memory of 1644	2440	199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe	82
PID 1644 wrote to memory of 4564	1644	bankrupture.exe	83
PID 1644 wrote to memory of 4564	1644	bankrupture.exe	83
PID 1644 wrote to memory of 4564	1644	bankrupture.exe	83
PID 4564 wrote to memory of 1080	4564	bankrupture.exe	88
PID 4564 wrote to memory of 1080	4564	bankrupture.exe	88
PID 4564 wrote to memory of 1080	4564	bankrupture.exe	88
PID 4564 wrote to memory of 1080	4564	bankrupture.exe	88
PID 4564 wrote to memory of 2808	4564	bankrupture.exe	89
PID 4564 wrote to memory of 2808	4564	bankrupture.exe	89
PID 4564 wrote to memory of 2808	4564	bankrupture.exe	89
PID 4564 wrote to memory of 2808	4564	bankrupture.exe	89
PID 4564 wrote to memory of 5004	4564	bankrupture.exe	90
PID 4564 wrote to memory of 5004	4564	bankrupture.exe	90
PID 4564 wrote to memory of 5004	4564	bankrupture.exe	90
PID 4564 wrote to memory of 5004	4564	bankrupture.exe	90

C:\Users\Admin\AppData\Local\Temp\199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe
"C:\Users\Admin\AppData\Local\Temp\199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe
  "C:\Users\Admin\AppData\Local\Temp\199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1644
- - C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe
    "C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe"
    3⤵
    - 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:4564
  - - C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe
      C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe /stext "C:\Users\Admin\AppData\Local\Temp\vxrjpsdegkptggmaaflxvlebdvvviq"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:1080
  - - C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe
      C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe /stext "C:\Users\Admin\AppData\Local\Temp\frwtqloguthxqmiejqxygyyklbewbbjiyg"
      4⤵
      Executes dropped EXE
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:2808
  - - C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe
      C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe /stext "C:\Users\Admin\AppData\Local\Temp\qtcmrd"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:5004

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
43ec57c566da6c6952b3abce456f62ad

SHA1
3b973fe8dd0a884104650934037ae819240afb8a

SHA256
44b538f8cdbbc46407de37fc8cf3bcd198897a46270468403a30c43bd2f9d9a2

SHA512
bc50f01c39ff5da27dd98b767ad2d8fc4059c20baaffb795c5b6ea54435dd922e754aef2add1c52ab4defbd68d0ac850b9ab46c6bb8a8ffad39f9115f52ec7f3

Download Submit
C:\Users\Admin\AppData\Local\Temp\aut34D9.tmp

Filesize
419KB

MD5
a9a0e5250052a7c19d3272e47dbf1f2d

SHA1
19d121b655a3802195d307c0431f84ceb9042d7b

SHA256
2cb6c8e181dd25247599136ada37c8cfc64bdc5b073a236524a97182ba8fc720

SHA512
8427ff93f6f6f7849be19e9dd93418067fe7e4da271e7e694a37feab606803a3a031979838c55551b0c7d590e5959cbb53a8ddfedee36494769fae7dbc1e2d4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\teer

Filesize
481KB

MD5
bd289fa20b842c995c4616d9cf521df5

SHA1
6d85a647c2995355869131522ca6c3f087db187a

SHA256
686deae06fa39d9d353c1433d1c43a360877631186a36ff92bb29c3914d6238e

SHA512
2004f457ea076b9e7243388ae1132790be023636be70c9161b38954aef6e27e2049ec87c5af7205a60964cc08bf9e968d9da71307a462c168f3bea7ade302be7

Download Submit
C:\Users\Admin\AppData\Local\Temp\vxrjpsdegkptggmaaflxvlebdvvviq

Filesize
4KB

MD5
57509a6a6267f17bef5e5da8b1df8829

SHA1
0886741be12c4e6dd24688df7b9568e91b2fc2aa

SHA256
4d50e4b2ee7b25d6a88dea6a28503975ca95f98e6e72fcd1ee754d016df3ed3d

SHA512
019c20a2354ef20ff3870ea4d544ae4e7ec21729bfbeb19d2dd2f8b087fcb6b83f259ab2f35e0f3c7f044ebb7c5bbfdfc63f23b811d458a15f5ad35aa9175228

Download Submit
C:\Users\Admin\AppData\Local\ectosphere\bankrupture.exe

Filesize
863KB

MD5
57f7d9095490a4aadda9e261fec73a68

SHA1
45e51f97abc52dd29e65d7ec78e18ee8d1721867

SHA256
199ab84d301b4914a7eb23a40a575e2622928e58d3672da79e43c77e453c4a3d

SHA512
80512a3188e69746425f828e394a0bf9ea6b50b4dda5b5f0b819248610d58d6fbd7862f29d42266f473515e60eadb2b5038c3ee9f7f9b26bb0a22981552f1810

Download Submit
memory/1080-51-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1080-64-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1080-55-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1080-48-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1080-66-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1644-26-0x0000000000520000-0x00000000006FC000-memory.dmp

Filesize
1.9MB

Download
memory/1644-11-0x0000000000520000-0x00000000006FC000-memory.dmp

Filesize
1.9MB

Download
memory/1644-22-0x0000000000E90000-0x0000000001290000-memory.dmp

Filesize
4.0MB

Download
memory/2440-0-0x0000000000620000-0x00000000007FC000-memory.dmp

Filesize
1.9MB

Download
memory/2440-7-0x00000000011A0000-0x00000000015A0000-memory.dmp

Filesize
4.0MB

Download
memory/2440-13-0x0000000000620000-0x00000000007FC000-memory.dmp

Filesize
1.9MB

Download
memory/2808-52-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2808-54-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2808-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4564-40-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-75-0x0000000000520000-0x00000000006FC000-memory.dmp

Filesize
1.9MB

Download
memory/4564-126-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-125-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-68-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4564-71-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4564-72-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/4564-73-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-76-0x0000000001810000-0x0000000001C10000-memory.dmp

Filesize
4.0MB

Download
memory/4564-77-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-81-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-34-0x0000000001810000-0x0000000001C10000-memory.dmp

Filesize
4.0MB

Download
memory/4564-92-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-93-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4564-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/5004-63-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5004-57-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/5004-59-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download