remcos | f2418ca6e602c9470a8b6e32172432726e50b00d6e7a0ee5bd70d0172017d6c3

Analysis

max time kernel
148s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 15:32

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General

Target

Material Requirments.pif.exe
Size

982KB
MD5

3a9da3edc40736cc832eded3c389a661
SHA1

f32f61fb4458696dae4f15d82377163521e4f8b5
SHA256

f2418ca6e602c9470a8b6e32172432726e50b00d6e7a0ee5bd70d0172017d6c3
SHA512

a1e2efe247e78cfb0ad62125c69c44200f6fc094085a570a0ad9a4ff3d0f2025eb9f0aacbe7cd7dce46a18121c02d46fec471a3353733a93ec49b6a81d243e95
SSDEEP

24576:rbT8S0ck7b8crshYjBSbIBDESo13E/WFRHVJmSr39RrE:rf8S0cXcrsWtDfoFRVJvNRrE

Score

10^/10

remcos remotehost collection discovery persistence rat spyware stealer

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

87.120.116.245:2400

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
true
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-24L73B
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/1912-79-0x0000000000400000-0x0000000000424000-memory.dmp	Nirsoft
behavioral1/memory/800-74-0x0000000000400000-0x0000000000462000-memory.dmp	Nirsoft
behavioral1/memory/1048-73-0x0000000000400000-0x0000000000478000-memory.dmp	Nirsoft

NirSoft MailPassView 1 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/800-74-0x0000000000400000-0x0000000000462000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 1 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/1048-73-0x0000000000400000-0x0000000000478000-memory.dmp	WebBrowserPassView

Executes dropped EXE 5 IoCs

pid	Process
2784	remcos.exe
1828	remcos.exe
1048	remcos.exe
800	remcos.exe
1912	remcos.exe

Loads dropped DLL 2 IoCs

pid	Process
2540	Material Requirments.pif.exe
2540	Material Requirments.pif.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	remcos.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	Material Requirments.pif.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	Material Requirments.pif.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-24L73B = "\"C:\\ProgramData\\Remcos\\remcos.exe\""	remcos.exe

Suspicious use of SetThreadContext 5 IoCs

description	pid	Process	procid_target
PID 2628 set thread context of 2540	2628	Material Requirments.pif.exe	32
PID 2784 set thread context of 1828	2784	remcos.exe	34
PID 1828 set thread context of 1048	1828	remcos.exe	36
PID 1828 set thread context of 800	1828	remcos.exe	37
PID 1828 set thread context of 1912	1828	remcos.exe	38

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	Material Requirments.pif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Material Requirments.pif.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	remcos.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2628	Material Requirments.pif.exe
2628	Material Requirments.pif.exe
1048	remcos.exe
1048	remcos.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
1828	remcos.exe
1828	remcos.exe
1828	remcos.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	Material Requirments.pif.exe
Token: SeDebugPrivilege	1912	remcos.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2780	2628	Material Requirments.pif.exe	31
PID 2628 wrote to memory of 2780	2628	Material Requirments.pif.exe	31
PID 2628 wrote to memory of 2780	2628	Material Requirments.pif.exe	31
PID 2628 wrote to memory of 2780	2628	Material Requirments.pif.exe	31
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2628 wrote to memory of 2540	2628	Material Requirments.pif.exe	32
PID 2540 wrote to memory of 2784	2540	Material Requirments.pif.exe	33
PID 2540 wrote to memory of 2784	2540	Material Requirments.pif.exe	33
PID 2540 wrote to memory of 2784	2540	Material Requirments.pif.exe	33
PID 2540 wrote to memory of 2784	2540	Material Requirments.pif.exe	33
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 2784 wrote to memory of 1828	2784	remcos.exe	34
PID 1828 wrote to memory of 1048	1828	remcos.exe	36
PID 1828 wrote to memory of 1048	1828	remcos.exe	36
PID 1828 wrote to memory of 1048	1828	remcos.exe	36
PID 1828 wrote to memory of 1048	1828	remcos.exe	36
PID 1828 wrote to memory of 1048	1828	remcos.exe	36
PID 1828 wrote to memory of 800	1828	remcos.exe	37
PID 1828 wrote to memory of 800	1828	remcos.exe	37
PID 1828 wrote to memory of 800	1828	remcos.exe	37
PID 1828 wrote to memory of 800	1828	remcos.exe	37
PID 1828 wrote to memory of 800	1828	remcos.exe	37
PID 1828 wrote to memory of 1912	1828	remcos.exe	38
PID 1828 wrote to memory of 1912	1828	remcos.exe	38
PID 1828 wrote to memory of 1912	1828	remcos.exe	38
PID 1828 wrote to memory of 1912	1828	remcos.exe	38
PID 1828 wrote to memory of 1912	1828	remcos.exe	38

C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe
"C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2628
- C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe
  "C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe"
  2⤵
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe
  "C:\Users\Admin\AppData\Local\Temp\Material Requirments.pif.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\ProgramData\Remcos\remcos.exe
    "C:\ProgramData\Remcos\remcos.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2784
  - - C:\ProgramData\Remcos\remcos.exe
      "C:\ProgramData\Remcos\remcos.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1828
    - - C:\ProgramData\Remcos\remcos.exe
        
        C:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\jqcygsijoaznmvdbp"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        
        PID:1048
    - - C:\ProgramData\Remcos\remcos.exe
        
        C:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\tkhqzkslkirsobzfgtcy"
        5⤵
        Executes dropped EXE
        Accesses Microsoft Outlook accounts
        System Location Discovery: System Language Discovery
        
        PID:800
    - - C:\ProgramData\Remcos\remcos.exe
        
        C:\ProgramData\Remcos\remcos.exe /stext "C:\Users\Admin\AppData\Local\Temp\dmmbzcdeyqjxypnjpdozxaq"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1912

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\remcos.exe

Filesize
982KB

MD5
3a9da3edc40736cc832eded3c389a661

SHA1
f32f61fb4458696dae4f15d82377163521e4f8b5

SHA256
f2418ca6e602c9470a8b6e32172432726e50b00d6e7a0ee5bd70d0172017d6c3

SHA512
a1e2efe247e78cfb0ad62125c69c44200f6fc094085a570a0ad9a4ff3d0f2025eb9f0aacbe7cd7dce46a18121c02d46fec471a3353733a93ec49b6a81d243e95

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

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
memory/800-69-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/800-72-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/800-74-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1048-66-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1048-71-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1048-73-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1828-53-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-47-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1828-97-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-96-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-95-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-94-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-93-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-92-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-91-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-90-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-88-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1828-89-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1828-85-0x0000000010000000-0x0000000010019000-memory.dmp

Filesize
100KB

Download
memory/1828-62-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-61-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-60-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-63-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-64-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-54-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-55-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-58-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1828-59-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/1912-79-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1912-78-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/1912-76-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2540-8-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-7-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-17-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-18-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-12-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-15-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-11-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-10-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-9-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-28-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2540-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-6-0x00000000053D0000-0x0000000005494000-memory.dmp

Filesize
784KB

Download
memory/2628-1-0x00000000001D0000-0x00000000002CC000-memory.dmp

Filesize
1008KB

Download
memory/2628-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-3-0x00000000006D0000-0x00000000006EC000-memory.dmp

Filesize
112KB

Download
memory/2628-20-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-4-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2628-5-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2628-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2784-32-0x0000000000850000-0x000000000094C000-memory.dmp

Filesize
1008KB

Download
memory/2784-31-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2784-33-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2784-34-0x0000000004730000-0x00000000047F4000-memory.dmp

Filesize
784KB

Download