remcos | 8951d42cd54ee24819e35270f5106ce547cbd23ac8a97e43135be5c6f4da79e9

Analysis

max time kernel
299s
max time network
282s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/01/2025, 09:18

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General

Target

completed payment Swift.exe
Size

618KB
MD5

9f596e0ef377a10ac315ea255dddd93a
SHA1

c01d886bf3ba5ada0b5685ce524061401e9c4bfe
SHA256

7ccf91b8dba6200f57181d52809c2edd10fe69a5334dfef8ee5426f882adfbe2
SHA512

1324ccbe878072d811e0ce7d344e4e8d0e5ffa27395ea2afb51e5eac99b45b723bd744a5217611da524e33281f0915ae468605db05040947e040708c81d117bb
SSDEEP

12288:h1zTwu+3/aEu57XO1KU7ZMveuWSA1YBcOxuuUHFFnsdFvMAqJ:0n3/aECOwKmvekyYBcOuPFFUFvMZJ

Score

10^/10

remcos googlegroupaccount collection discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

googlegroupaccount

213.152.187.241:12776

10.14.10.19:12776

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
googlegroupaccount.exe
copy_folder
googlegroupaccount
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
true
install_path
%AppData%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-6741XM
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 3 IoCs

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

resource	yara_rule
behavioral1/memory/2632-76-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/2556-75-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/3048-81-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2632-76-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2556-75-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Executes dropped EXE 5 IoCs

pid	Process
2104	googlegroupaccount.exe
2752	googlegroupaccount.exe
2556	googlegroupaccount.exe
2632	googlegroupaccount.exe
3048	googlegroupaccount.exe

Loads dropped DLL 5 IoCs

pid	Process
1912	completed payment Swift.exe
2104	googlegroupaccount.exe
2752	googlegroupaccount.exe
2752	googlegroupaccount.exe
2752	googlegroupaccount.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	googlegroupaccount.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	completed payment Swift.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	completed payment Swift.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-6741XM = "\"C:\\Users\\Admin\\AppData\\Roaming\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 2312 set thread context of 1912	2312	completed payment Swift.exe	30
PID 2104 set thread context of 2752	2104	googlegroupaccount.exe	32
PID 2752 set thread context of 2556	2752	googlegroupaccount.exe	33
PID 2752 set thread context of 2632	2752	googlegroupaccount.exe	34
PID 2752 set thread context of 3048	2752	googlegroupaccount.exe	35

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	completed payment Swift.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	completed payment Swift.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	googlegroupaccount.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2556	googlegroupaccount.exe
2556	googlegroupaccount.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2752	googlegroupaccount.exe
2752	googlegroupaccount.exe
2752	googlegroupaccount.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3048	googlegroupaccount.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2752	googlegroupaccount.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 2312 wrote to memory of 1912	2312	completed payment Swift.exe	30
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 1912 wrote to memory of 2104	1912	completed payment Swift.exe	31
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2104 wrote to memory of 2752	2104	googlegroupaccount.exe	32
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2556	2752	googlegroupaccount.exe	33
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 2632	2752	googlegroupaccount.exe	34
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35
PID 2752 wrote to memory of 3048	2752	googlegroupaccount.exe	35

C:\Users\Admin\AppData\Local\Temp\completed payment Swift.exe
"C:\Users\Admin\AppData\Local\Temp\completed payment Swift.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2312
- C:\Users\Admin\AppData\Local\Temp\completed payment Swift.exe
  "C:\Users\Admin\AppData\Local\Temp\completed payment Swift.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
    "C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2104
  - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
      "C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: MapViewOfSection
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2752
    - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
        
        C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\bstpsoxczonkwon"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:2556
    - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
        
        C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\mmghtghdvwfpgujqmf"
        5⤵
        Executes dropped EXE
        Accesses Microsoft Outlook accounts
        System Location Discovery: System Language Discovery
        
        PID:2632
    - - C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe
        
        C:\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\wolauzsxjexcjaxuvqpau"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3048

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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

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Downloads

C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
424129edaeee733b9fc8926e7408725c

SHA1
add66ed72ae9eba520e1cb87388747c074485342

SHA256
1765e4176c4f6c8918c66f2affa9339154a9efbcfe1a871707621c34ddf4fdc1

SHA512
cacd69713cc666fd7a3ff4f4fa2861bde688f9c67a39709483c21995dd37649b4a1766a3d5c226635fae11afab8664f379eb7590dbc9a3cff51414a6ec1de2f5

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
\Users\Admin\AppData\Roaming\googlegroupaccount\googlegroupaccount.exe

Filesize
618KB

MD5
9f596e0ef377a10ac315ea255dddd93a

SHA1
c01d886bf3ba5ada0b5685ce524061401e9c4bfe

SHA256
7ccf91b8dba6200f57181d52809c2edd10fe69a5334dfef8ee5426f882adfbe2

SHA512
1324ccbe878072d811e0ce7d344e4e8d0e5ffa27395ea2afb51e5eac99b45b723bd744a5217611da524e33281f0915ae468605db05040947e040708c81d117bb

Download Submit
memory/1912-8-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-23-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-9-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-3-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1912-18-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-5-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-6-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-14-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/1912-7-0x0000000000090000-0x0000000000110000-memory.dmp

Filesize
512KB

Download
memory/2104-34-0x0000000073BB0000-0x000000007429E000-memory.dmp

Filesize
6.9MB

Download
memory/2104-52-0x0000000073BB0000-0x000000007429E000-memory.dmp

Filesize
6.9MB

Download
memory/2104-31-0x0000000073BBE000-0x0000000073BBF000-memory.dmp

Filesize
4KB

Download
memory/2104-32-0x0000000000B60000-0x0000000000C00000-memory.dmp

Filesize
640KB

Download
memory/2312-22-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-2-0x00000000742A0000-0x000000007498E000-memory.dmp

Filesize
6.9MB

Download
memory/2312-1-0x0000000000B30000-0x0000000000BD0000-memory.dmp

Filesize
640KB

Download
memory/2312-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

Filesize
4KB

Download
memory/2556-66-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2556-73-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2556-75-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2632-74-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2632-70-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2632-76-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2632-69-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-62-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-59-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-63-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-55-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-88-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2752-92-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2752-91-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2752-93-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2752-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/3048-78-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3048-81-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/3048-80-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download