remcos | f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
31-01-2025 12:14

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General

Target

Vendor Questionnaire and EOI.exe
Size

610KB
MD5

d0627ad0019378cd5a6f23eb4a0f1c8f
SHA1

9626f6c80883b8203b299a1d751e136bf5e16e54
SHA256

f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517
SHA512

8b6a2d8c71a2232f07c17d6e1e67e34945cbf08dad2426112ace21c4d808fdbf05adc44e78be742067130255af819d97cae93bf3c68f05da5c88777b6a8bbdd8
SSDEEP

12288:p98UWQxHvxTMN0X4YcXGw9CIOmUwuTRQXgz3sK7hvhO7G:paQxG3YWGkCIhUwuTRQwrl9e

Score

10^/10

remcos googlegroupaccount collection discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

googlegroupaccount

107.174.65.146:1194

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
%Temp%
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-1MDOQC
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/2840-71-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/516-70-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft
behavioral1/memory/1104-77-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2840-71-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/516-70-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Executes dropped EXE 5 IoCs

pid	Process
2880	googlegroupaccount.exe
2648	googlegroupaccount.exe
516	googlegroupaccount.exe
2840	googlegroupaccount.exe
1104	googlegroupaccount.exe

Loads dropped DLL 5 IoCs

pid	Process
2844	Vendor Questionnaire and EOI.exe
2880	googlegroupaccount.exe
2648	googlegroupaccount.exe
2648	googlegroupaccount.exe
2648	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-1-5-21-3692679935-4019334568-335155002-1000\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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	Vendor Questionnaire and EOI.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	Vendor Questionnaire and EOI.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-1MDOQC = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\googlegroupaccount\\googlegroupaccount.exe\""	googlegroupaccount.exe

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2880 set thread context of 2648	2880	googlegroupaccount.exe	32
PID 2648 set thread context of 516	2648	googlegroupaccount.exe	33
PID 2648 set thread context of 2840	2648	googlegroupaccount.exe	34
PID 2648 set thread context of 1104	2648	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	Vendor Questionnaire and EOI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Vendor Questionnaire and EOI.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	googlegroupaccount.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
516	googlegroupaccount.exe
516	googlegroupaccount.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2648	googlegroupaccount.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2648	googlegroupaccount.exe
2648	googlegroupaccount.exe
2648	googlegroupaccount.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1104	googlegroupaccount.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2648	googlegroupaccount.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2728 wrote to memory of 2844	2728	Vendor Questionnaire and EOI.exe	30
PID 2844 wrote to memory of 2880	2844	Vendor Questionnaire and EOI.exe	31
PID 2844 wrote to memory of 2880	2844	Vendor Questionnaire and EOI.exe	31
PID 2844 wrote to memory of 2880	2844	Vendor Questionnaire and EOI.exe	31
PID 2844 wrote to memory of 2880	2844	Vendor Questionnaire and EOI.exe	31
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2880 wrote to memory of 2648	2880	googlegroupaccount.exe	32
PID 2648 wrote to memory of 516	2648	googlegroupaccount.exe	33
PID 2648 wrote to memory of 516	2648	googlegroupaccount.exe	33
PID 2648 wrote to memory of 516	2648	googlegroupaccount.exe	33
PID 2648 wrote to memory of 516	2648	googlegroupaccount.exe	33
PID 2648 wrote to memory of 516	2648	googlegroupaccount.exe	33
PID 2648 wrote to memory of 2840	2648	googlegroupaccount.exe	34
PID 2648 wrote to memory of 2840	2648	googlegroupaccount.exe	34
PID 2648 wrote to memory of 2840	2648	googlegroupaccount.exe	34
PID 2648 wrote to memory of 2840	2648	googlegroupaccount.exe	34
PID 2648 wrote to memory of 2840	2648	googlegroupaccount.exe	34
PID 2648 wrote to memory of 1104	2648	googlegroupaccount.exe	35
PID 2648 wrote to memory of 1104	2648	googlegroupaccount.exe	35
PID 2648 wrote to memory of 1104	2648	googlegroupaccount.exe	35
PID 2648 wrote to memory of 1104	2648	googlegroupaccount.exe	35
PID 2648 wrote to memory of 1104	2648	googlegroupaccount.exe	35

C:\Users\Admin\AppData\Local\Temp\Vendor Questionnaire and EOI.exe
"C:\Users\Admin\AppData\Local\Temp\Vendor Questionnaire and EOI.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Users\Admin\AppData\Local\Temp\Vendor Questionnaire and EOI.exe
  "C:\Users\Admin\AppData\Local\Temp\Vendor Questionnaire and EOI.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
    "C:\Users\Admin\AppData\Local\Temp\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:2880
  - - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
      "C:\Users\Admin\AppData\Local\Temp\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: GetForegroundWindowSpam
      Suspicious behavior: MapViewOfSection
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2648
    - - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
        
        C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\ncnnjsrvnhidwrziuhpaxbefcjngjptpvq"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:516
    - - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
        
        C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\pxaxkk"
        5⤵
        Executes dropped EXE
        Accesses Microsoft Outlook accounts
        System Location Discovery: System Language Discovery
        
        PID:2840
    - - C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe
        
        C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe /stext "C:\Users\Admin\AppData\Local\Temp\azgqlduqx"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1104

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
230B

MD5
0f7ee9aac27cc04dc4b2a7fae37ff3af

SHA1
0b28afa873459f2c0c80273edf9b196765120bb4

SHA256
7685057fd7ef9e6315ec2e52678797090fc008d4d195e720f92f9d7e29fb8adc

SHA512
04154b8eaa87e94fe269b06ec08fb3b65188628af75d9822f0a1dca625dd2cb2f499087fce17df6bc4f6ce18a8cc21ad432a3733d6c89c8e5b4f28a588b0bfd7

Download Submit
C:\ProgramData\remcos\logs.dat

Filesize
144B

MD5
aa760bbd52801db7b6af5037349eaf18

SHA1
59533d60302bb2eabdc5d3d61bba9faed3c06a0c

SHA256
0094ab5d7c1fc97647ba518b0f18ca5c06136f6c2decfb3c37cc3b5c3cd079fe

SHA512
5a4f5b00312086d2e318797d186d09ab8a2802cc41b0b56badd6c7eb7097cd7c11f2c442ee9e5e0b98a91be1880a82871331635ffca0f69fc0f64f5c2adc88bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\googlegroupaccount\googlegroupaccount.exe

Filesize
610KB

MD5
d0627ad0019378cd5a6f23eb4a0f1c8f

SHA1
9626f6c80883b8203b299a1d751e136bf5e16e54

SHA256
f9a75f67ab3b4e7fa308bdac0ab7a6c40f0189fb3d95cfdb455023080a89c517

SHA512
8b6a2d8c71a2232f07c17d6e1e67e34945cbf08dad2426112ace21c4d808fdbf05adc44e78be742067130255af819d97cae93bf3c68f05da5c88777b6a8bbdd8

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/516-65-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/516-62-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/516-70-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1104-77-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1104-76-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1104-74-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2648-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-112-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-113-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-89-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2648-104-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-103-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-88-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2648-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-96-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-39-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-85-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/2648-90-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-59-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-92-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2648-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2728-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/2728-13-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-2-0x0000000074560000-0x0000000074C4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-1-0x0000000000FE0000-0x0000000001080000-memory.dmp

Filesize
640KB

Download
memory/2840-71-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2840-69-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2840-67-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/2844-7-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-5-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-3-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-8-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-14-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-11-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-84-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-4-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-22-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2844-6-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2880-24-0x0000000000850000-0x00000000008F0000-memory.dmp

Filesize
640KB

Download
memory/2880-23-0x00000000743CE000-0x00000000743CF000-memory.dmp

Filesize
4KB

Download
memory/2880-26-0x00000000743C0000-0x0000000074AAE000-memory.dmp

Filesize
6.9MB

Download
memory/2880-48-0x00000000743C0000-0x0000000074AAE000-memory.dmp

Filesize
6.9MB

Download