remcos | b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-09-2024 02:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
Size

1.5MB
MD5

bd6420aaf066a5b4533598417866bc67
SHA1

cf56376da61f4f34034fa4cc525e708052a5ecd3
SHA256

b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48
SHA512

d9b394fc25949d552b64061810cd4452d24ee473c5755bada25b1db5ad35652a57b545c53c5e1dea88feac376b86e838a6b87886e9ad50e1f582eb2b985cda78
SSDEEP

24576:zqDEvCTbMWu7rQYlBQcBiT6rprG8auS2rwF3q65FE8wvsO5BaH3:zTvC/MTQYxsWR7auSY65G8wDKH

Score

10^/10

remcos remotehost collection credential_access discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

192.210.150.26:8787

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-NKQ1SM
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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 7 IoCs

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

resource	yara_rule
behavioral2/memory/2012-50-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2736-57-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2012-58-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/2012-56-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4280-55-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/2736-53-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/2736-63-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/2012-50-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2012-58-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/2012-56-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/2736-57-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2736-53-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/2736-63-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Drops startup file 1 IoCs

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

Executes dropped EXE 5 IoCs

pid	Process
1072	antholite.exe
2736	antholite.exe
3816	antholite.exe
2012	antholite.exe
4280	antholite.exe

Reads user/profile data of web browsers 2 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

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	antholite.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x000900000001e557-13.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1072 set thread context of 2736	1072	antholite.exe	92
PID 1072 set thread context of 2012	1072	antholite.exe	94
PID 1072 set thread context of 4280	1072	antholite.exe	95

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	antholite.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	antholite.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	antholite.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	antholite.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2736	antholite.exe
2736	antholite.exe
4280	antholite.exe
4280	antholite.exe
2736	antholite.exe
2736	antholite.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
1072	antholite.exe
1072	antholite.exe
1072	antholite.exe
1072	antholite.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4280	antholite.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
1072	antholite.exe
1072	antholite.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
1072	antholite.exe
1072	antholite.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 1072	2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe	86
PID 2448 wrote to memory of 1072	2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe	86
PID 2448 wrote to memory of 1072	2448	b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe	86
PID 1072 wrote to memory of 2736	1072	antholite.exe	92
PID 1072 wrote to memory of 2736	1072	antholite.exe	92
PID 1072 wrote to memory of 2736	1072	antholite.exe	92
PID 1072 wrote to memory of 2736	1072	antholite.exe	92
PID 1072 wrote to memory of 3816	1072	antholite.exe	93
PID 1072 wrote to memory of 3816	1072	antholite.exe	93
PID 1072 wrote to memory of 3816	1072	antholite.exe	93
PID 1072 wrote to memory of 2012	1072	antholite.exe	94
PID 1072 wrote to memory of 2012	1072	antholite.exe	94
PID 1072 wrote to memory of 2012	1072	antholite.exe	94
PID 1072 wrote to memory of 2012	1072	antholite.exe	94
PID 1072 wrote to memory of 4280	1072	antholite.exe	95
PID 1072 wrote to memory of 4280	1072	antholite.exe	95
PID 1072 wrote to memory of 4280	1072	antholite.exe	95
PID 1072 wrote to memory of 4280	1072	antholite.exe	95

C:\Users\Admin\AppData\Local\Temp\b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe
"C:\Users\Admin\AppData\Local\Temp\b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Users\Admin\AppData\Local\Cocles\antholite.exe
  "C:\Users\Admin\AppData\Local\Temp\b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48.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:1072
- - C:\Users\Admin\AppData\Local\Cocles\antholite.exe
    C:\Users\Admin\AppData\Local\Cocles\antholite.exe /stext "C:\Users\Admin\AppData\Local\Temp\nkwehrryiohqremreptvthojudvmrax"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2736
- - C:\Users\Admin\AppData\Local\Cocles\antholite.exe
    C:\Users\Admin\AppData\Local\Cocles\antholite.exe /stext "C:\Users\Admin\AppData\Local\Temp\pebx"
    3⤵
    - Executes dropped EXE
    PID:3816
- - C:\Users\Admin\AppData\Local\Cocles\antholite.exe
    C:\Users\Admin\AppData\Local\Cocles\antholite.exe /stext "C:\Users\Admin\AppData\Local\Temp\pebx"
    3⤵
    - Executes dropped EXE
    - Accesses Microsoft Outlook accounts
    - System Location Discovery: System Language Discovery
    PID:2012
- - C:\Users\Admin\AppData\Local\Cocles\antholite.exe
    C:\Users\Admin\AppData\Local\Cocles\antholite.exe /stext "C:\Users\Admin\AppData\Local\Temp\aggpjcu"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4280

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
e702711d9d3928b10e063b25f62847f6

SHA1
d0f2617023693ed3bb9e0f94d488225d70739cbc

SHA256
4206b20ff9344c0a9444e12cf4c6730ebb37d089547203f5f6eafc595820a426

SHA512
cd587dda733603721d359b0838e83c40995748ad9b0cfa6f2e65805ba70745f31471ff69770bbba4df8800b235574bc405a9373610f89b1f56613c432683bcf7

Download Submit
C:\Users\Admin\AppData\Local\Cocles\antholite.exe

Filesize
1.5MB

MD5
bd6420aaf066a5b4533598417866bc67

SHA1
cf56376da61f4f34034fa4cc525e708052a5ecd3

SHA256
b8022e8002a8e01a6364fdcc6d53275b6edf3d196e36f0b4c9645de2570cfd48

SHA512
d9b394fc25949d552b64061810cd4452d24ee473c5755bada25b1db5ad35652a57b545c53c5e1dea88feac376b86e838a6b87886e9ad50e1f582eb2b985cda78

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

Filesize
482KB

MD5
48005136bc147209ac8f408339c017e9

SHA1
2758101d2f96164a3e0cb62785223888946f53fa

SHA256
76e8c3c933c18bae6bb3cfbfa2aceb9db31c7862a56775de9ced8f1ec3a72f7f

SHA512
e0ac69de23c7354f61d634ba4064d63f54f75306dd06a15884d8c2da75908643db405fa430a84dbeb1af5e66c153c4d26e1006916f6879ba5bd9d8f9b459eaac

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

Filesize
4KB

MD5
8b8277c8f03c24d1f290dbe476e961d2

SHA1
2e13baf3a4b708277d550dc3dd1e0f99b131f78e

SHA256
9af6881f6dbffba028a7a977f4c0a43c764f840332986993ad66de7b816c2f9e

SHA512
7367a0236cd0d6cd731caf1ba1f4ea8f851ea1018a9c6b49db6e9d13b2aaba92767774da9169481918e4287021ff5c3a58c3143eaa5e7fe9fa88383208615948

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

Filesize
140KB

MD5
fc0250799241323e9f3a53f51f7df0f1

SHA1
f0d60dbf33047494014302b4ee8b438cc0380943

SHA256
0469ec50b7420320b46fb0a05c5d875de1ca110b2e18fbcb37860e2a6cd31982

SHA512
ccacaced5eb79a9920299599b34984788c2288bf07ce1a423668c5b4e56f4348cf7a6a29231a658fce07a40719897ee1dde428d4539a8007f6028b243f718661

Download Submit
memory/1072-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-101-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-109-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-72-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-108-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-93-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-68-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1072-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1072-65-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1072-69-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2012-45-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2012-48-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2012-56-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2012-58-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2012-50-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2448-10-0x0000000002870000-0x0000000002874000-memory.dmp

Filesize
16KB

Download
memory/2736-63-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-41-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-49-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-53-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-57-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4280-51-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4280-54-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/4280-55-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download