remcos | bec12a02071a09380fabc57931ae34c0cd8c3ec40f92ea659dc095dfa7cce753

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 05:23

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General

Target

EXE_01.exe
Size

486KB
MD5

9c9ee258beb1744ece1bc18f29e04ad1
SHA1

8965afa0e32f1f00e2cb01b116173debf2ce53cd
SHA256

bec12a02071a09380fabc57931ae34c0cd8c3ec40f92ea659dc095dfa7cce753
SHA512

0addee1abd97e355c0251811bc4353fbcbb40a6030443c155afafd510a799c426ed0116b1d7bc52954294a2fe46ddd9ba330bbfb68eb515b59e4942c8b5125e8
SSDEEP

12288:260zKVYnI9wj6obVfDJUCiiOTCXkNZftTd6M59:u0YsqbVf9XiiCCXyvDv

Score

10^/10

remcos santa collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

SANTA

honeypotresearchteam.duckdns.org:28453

pentester0.accesscam.org:56796

pentester03.gleeze.com:28454

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
chromes.exe
copy_folder
chromes
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-95CQE9
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 10 IoCs

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

resource	yara_rule
behavioral1/memory/2736-27-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2692-31-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2736-30-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2692-28-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2732-38-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2732-37-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2732-39-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/2736-44-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/2692-52-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2652-66-0x0000000003DC0000-0x0000000003E42000-memory.dmp	Nirsoft

NirSoft MailPassView 4 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2692-31-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2692-28-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2692-52-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral1/memory/2652-66-0x0000000003DC0000-0x0000000003E42000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2736-27-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2736-30-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral1/memory/2736-44-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	EXE_01.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2652 set thread context of 2736	2652	EXE_01.exe	31
PID 2652 set thread context of 2692	2652	EXE_01.exe	32
PID 2652 set thread context of 2732	2652	EXE_01.exe	33

System Location Discovery: System Language Discovery 1 TTPs 4 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	EXE_01.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXE_01.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXE_01.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXE_01.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2736	EXE_01.exe
2736	EXE_01.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2652	EXE_01.exe
2652	EXE_01.exe
2652	EXE_01.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	EXE_01.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2736	2652	EXE_01.exe	31
PID 2652 wrote to memory of 2736	2652	EXE_01.exe	31
PID 2652 wrote to memory of 2736	2652	EXE_01.exe	31
PID 2652 wrote to memory of 2736	2652	EXE_01.exe	31
PID 2652 wrote to memory of 2736	2652	EXE_01.exe	31
PID 2652 wrote to memory of 2692	2652	EXE_01.exe	32
PID 2652 wrote to memory of 2692	2652	EXE_01.exe	32
PID 2652 wrote to memory of 2692	2652	EXE_01.exe	32
PID 2652 wrote to memory of 2692	2652	EXE_01.exe	32
PID 2652 wrote to memory of 2692	2652	EXE_01.exe	32
PID 2652 wrote to memory of 2732	2652	EXE_01.exe	33
PID 2652 wrote to memory of 2732	2652	EXE_01.exe	33
PID 2652 wrote to memory of 2732	2652	EXE_01.exe	33
PID 2652 wrote to memory of 2732	2652	EXE_01.exe	33
PID 2652 wrote to memory of 2732	2652	EXE_01.exe	33

C:\Users\Admin\AppData\Local\Temp\EXE_01.exe
"C:\Users\Admin\AppData\Local\Temp\EXE_01.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\EXE_01.exe
  C:\Users\Admin\AppData\Local\Temp\EXE_01.exe /stext "C:\Users\Admin\AppData\Local\Temp\yrkjvfsurgfoflhfwmyf"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:2736
- C:\Users\Admin\AppData\Local\Temp\EXE_01.exe
  C:\Users\Admin\AppData\Local\Temp\EXE_01.exe /stext "C:\Users\Admin\AppData\Local\Temp\jlquvydwfoxbisvjnxkygjd"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:2692
- C:\Users\Admin\AppData\Local\Temp\EXE_01.exe
  C:\Users\Admin\AppData\Local\Temp\EXE_01.exe /stext "C:\Users\Admin\AppData\Local\Temp\lnvmoqnptxpgsysnwhfajoylzb"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2732

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

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Downloads

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/2652-29-0x0000000003E30000-0x0000000003EB2000-memory.dmp

Filesize
520KB

Download
memory/2652-66-0x0000000003DC0000-0x0000000003E42000-memory.dmp

Filesize
520KB

Download
memory/2652-3-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-4-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-5-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-7-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-6-0x0000000000580000-0x0000000000602000-memory.dmp

Filesize
520KB

Download
memory/2652-9-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-10-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-11-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-12-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-13-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-14-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-16-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-74-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-69-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-68-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-67-0x0000000003E30000-0x0000000003EB2000-memory.dmp

Filesize
520KB

Download
memory/2652-0-0x0000000000580000-0x0000000000602000-memory.dmp

Filesize
520KB

Download
memory/2652-65-0x0000000003D40000-0x0000000003DC2000-memory.dmp

Filesize
520KB

Download
memory/2652-60-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-61-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-73-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-2-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-55-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-56-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-53-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2652-50-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2652-51-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2652-47-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2652-1-0x00000000002C0000-0x000000000033F000-memory.dmp

Filesize
508KB

Download
memory/2692-26-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2692-31-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2692-28-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2692-22-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2692-52-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2732-38-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2732-34-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2732-39-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2732-37-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2732-36-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2736-44-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-27-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-24-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-19-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-30-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2736-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download