remcos | 1a8c4a357230c2b388cb9cc9171ab0bcc37a194fdf99e69e6a42d8e1a3d2652b

General

Target

173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
Size

482KB
MD5

48a5ea05ebabc7aeb2035bf62d7eb350
SHA1

832acc3bae12f651c259013599fb2608cf7147a9
SHA256

1a8c4a357230c2b388cb9cc9171ab0bcc37a194fdf99e69e6a42d8e1a3d2652b
SHA512

5f2fc1e7b1b6a71f5f8ed4a397190375adeca50a7c1fdcda961a6ab133d41d8d8e715cacfdeb50517846bb962905f98493c217e9ce670c7cdc22afbe80b6b57e
SSDEEP

12288:J13ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQfS:bak/mBXTV/R0nEF76gFZk

Score

10^/10

remcos zynova collection discovery rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

zynova

C2

millionairedreams2025.duckdns.org:14645

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-MGAETQ
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 9 IoCs

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

resource	yara_rule
behavioral2/memory/4604-10-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1172-22-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4604-19-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/4036-16-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral2/memory/1172-15-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4604-14-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral2/memory/1172-13-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/1172-12-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral2/memory/4036-27-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 3 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral2/memory/4604-10-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4604-19-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView
behavioral2/memory/4604-14-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 2 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral2/memory/4036-16-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView
behavioral2/memory/4036-27-0x0000000000400000-0x0000000000478000-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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1744 set thread context of 4036	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	85
PID 1744 set thread context of 4604	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	86
PID 1744 set thread context of 1172	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	87

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	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1172	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
1172	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
4036	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
4036	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
4036	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
4036	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1744 wrote to memory of 4036	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	85
PID 1744 wrote to memory of 4036	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	85
PID 1744 wrote to memory of 4036	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	85
PID 1744 wrote to memory of 4604	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	86
PID 1744 wrote to memory of 4604	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	86
PID 1744 wrote to memory of 4604	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	86
PID 1744 wrote to memory of 1172	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	87
PID 1744 wrote to memory of 1172	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	87
PID 1744 wrote to memory of 1172	1744	173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe	87

C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
"C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\pwvewzvmuazzsfh"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  PID:4036
- C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\rrawxrggiiredlvbvh"
  2⤵
  - Accesses Microsoft Outlook accounts
  - System Location Discovery: System Language Discovery
  PID:4604
- C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe
  C:\Users\Admin\AppData\Local\Temp\173744352520367a15edff0f98dc06053aeb60dd702be0fbca2378739c9aba41a50438798d820.dat-decoded.exe /stext "C:\Users\Admin\AppData\Local\Temp\blghykriwrjifzrfmrgjn"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
4KB

MD5
ac300aeaf27709e2067788fdd4624843

SHA1
e98edd4615d35de96e30f1a0e13c05b42ee7eb7b

SHA256
d2637d58bb120dc6fefe2f38d6e0d4b308006b8639106a7f9e915fa80b5cc9d9

SHA512
09c46e708f9d253dccd4d943639d9f8126f868ae3dcd951aad12222bb98b5d3814676f878c8391b9bdab5dedcf5b9e9eaeb2ad3ffec57bda875198735586d4df

Download Submit
memory/1172-12-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1172-15-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1172-13-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1172-9-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1172-20-0x0000000000430000-0x00000000004F9000-memory.dmp

Filesize
804KB

Download
memory/1172-22-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1172-7-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1744-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1744-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1744-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1744-33-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1744-34-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1744-30-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1744-36-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/4036-16-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4036-5-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4036-1-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4036-11-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4036-27-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/4604-19-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4604-3-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4604-6-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4604-14-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4604-10-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download

Analysis

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