remcos | 7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955

Analysis

max time kernel
148s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/01/2025, 02:45

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General

Target

7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
Size

469KB
MD5

ebf341ab1088ab009a9f9cf06619e616
SHA1

a31d5650c010c421fa81733e4841cf1b52d607d9
SHA256

7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955
SHA512

40c1481642f8ad2fed9514d0968a43151a189c61e53d60990183e81c16891cdd7a0983568b2910dc8a9098a408136468cff5660d0607cf06331275937c1f60e1
SSDEEP

12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSin9:uiLJbpI7I2WhQqZ7i9

Score

10^/10

remcos remotehost defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

else-directors.gl.at.ply.gg:56448

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
$77-Bitdefender.exe
copy_folder
Bitdefender
delete_file
true
hide_file
true
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-Z3DS2J
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
VisualStudioServer
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

UAC bypass 3 TTPs 3 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Adds policy Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	$77-Bitdefender.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	$77-Bitdefender.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	iexplore.exe

Deletes itself 1 IoCs

pid	Process
2776	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2620	$77-Bitdefender.exe

Loads dropped DLL 2 IoCs

pid	Process
2468	cmd.exe
2468	cmd.exe

Adds Run key to start application 2 TTPs 6 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	$77-Bitdefender.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	$77-Bitdefender.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VisualStudioServer = "\"C:\\ProgramData\\Bitdefender\\$77-Bitdefender.exe\""	iexplore.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 2808	2620	$77-Bitdefender.exe	36
PID 2808 set thread context of 2456	2808	iexplore.exe	40

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 11 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	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	$77-Bitdefender.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry key 1 TTPs 3 IoCs

Modify Registry

T1112

pid	Process
2088	reg.exe
2476	reg.exe
2536	reg.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2620	$77-Bitdefender.exe
2808	iexplore.exe

Suspicious use of WriteProcessMemory 46 IoCs

description	pid	Process	procid_target
PID 2552 wrote to memory of 2988	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	28
PID 2552 wrote to memory of 2988	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	28
PID 2552 wrote to memory of 2988	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	28
PID 2552 wrote to memory of 2988	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	28
PID 2988 wrote to memory of 2088	2988	cmd.exe	30
PID 2988 wrote to memory of 2088	2988	cmd.exe	30
PID 2988 wrote to memory of 2088	2988	cmd.exe	30
PID 2988 wrote to memory of 2088	2988	cmd.exe	30
PID 2552 wrote to memory of 2776	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	31
PID 2552 wrote to memory of 2776	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	31
PID 2552 wrote to memory of 2776	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	31
PID 2552 wrote to memory of 2776	2552	7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe	31
PID 2776 wrote to memory of 2468	2776	WScript.exe	32
PID 2776 wrote to memory of 2468	2776	WScript.exe	32
PID 2776 wrote to memory of 2468	2776	WScript.exe	32
PID 2776 wrote to memory of 2468	2776	WScript.exe	32
PID 2468 wrote to memory of 2620	2468	cmd.exe	34
PID 2468 wrote to memory of 2620	2468	cmd.exe	34
PID 2468 wrote to memory of 2620	2468	cmd.exe	34
PID 2468 wrote to memory of 2620	2468	cmd.exe	34
PID 2620 wrote to memory of 2784	2620	$77-Bitdefender.exe	35
PID 2620 wrote to memory of 2784	2620	$77-Bitdefender.exe	35
PID 2620 wrote to memory of 2784	2620	$77-Bitdefender.exe	35
PID 2620 wrote to memory of 2784	2620	$77-Bitdefender.exe	35
PID 2620 wrote to memory of 2808	2620	$77-Bitdefender.exe	36
PID 2620 wrote to memory of 2808	2620	$77-Bitdefender.exe	36
PID 2620 wrote to memory of 2808	2620	$77-Bitdefender.exe	36
PID 2620 wrote to memory of 2808	2620	$77-Bitdefender.exe	36
PID 2620 wrote to memory of 2808	2620	$77-Bitdefender.exe	36
PID 2808 wrote to memory of 1972	2808	iexplore.exe	38
PID 2808 wrote to memory of 1972	2808	iexplore.exe	38
PID 2808 wrote to memory of 1972	2808	iexplore.exe	38
PID 2808 wrote to memory of 1972	2808	iexplore.exe	38
PID 2784 wrote to memory of 2476	2784	cmd.exe	41
PID 2784 wrote to memory of 2476	2784	cmd.exe	41
PID 2784 wrote to memory of 2476	2784	cmd.exe	41
PID 2784 wrote to memory of 2476	2784	cmd.exe	41
PID 2808 wrote to memory of 2456	2808	iexplore.exe	40
PID 2808 wrote to memory of 2456	2808	iexplore.exe	40
PID 2808 wrote to memory of 2456	2808	iexplore.exe	40
PID 2808 wrote to memory of 2456	2808	iexplore.exe	40
PID 2808 wrote to memory of 2456	2808	iexplore.exe	40
PID 1972 wrote to memory of 2536	1972	cmd.exe	42
PID 1972 wrote to memory of 2536	1972	cmd.exe	42
PID 1972 wrote to memory of 2536	1972	cmd.exe	42
PID 1972 wrote to memory of 2536	1972	cmd.exe	42

C:\Users\Admin\AppData\Local\Temp\7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe
"C:\Users\Admin\AppData\Local\Temp\7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2552
- C:\Windows\SysWOW64\cmd.exe
  /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - UAC bypass
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2088
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2776
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c "C:\ProgramData\Bitdefender\$77-Bitdefender.exe"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2468
  - - C:\ProgramData\Bitdefender\$77-Bitdefender.exe
      C:\ProgramData\Bitdefender\$77-Bitdefender.exe
      4⤵
      Adds policy Run key to start application
      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:2620
    - - C:\Windows\SysWOW64\cmd.exe
        
        /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2784
      - C:\Windows\SysWOW64\reg.exe
        
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        6⤵
        UAC bypass
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2476
    - - \??\c:\program files (x86)\internet explorer\iexplore.exe
        
        "c:\program files (x86)\internet explorer\iexplore.exe"
        5⤵
        Adds policy Run key to start application
        Adds Run key to start application
        Suspicious use of SetThreadContext
        System Location Discovery: System Language Discovery
        Suspicious behavior: MapViewOfSection
        Suspicious use of WriteProcessMemory
        
        PID:2808
      - C:\Windows\SysWOW64\cmd.exe
        
        /k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:1972
        
        C:\Windows\SysWOW64\reg.exe
        
        C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        7⤵
        UAC bypass
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2536
      - C:\Windows\SysWOW64\svchost.exe
        
        svchost.exe
        6⤵
        
        PID:2456

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

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Bitdefender\$77-Bitdefender.exe

Filesize
469KB

MD5
ebf341ab1088ab009a9f9cf06619e616

SHA1
a31d5650c010c421fa81733e4841cf1b52d607d9

SHA256
7422bc2c77e70c2e90c27d030a13eb3adf0bcfc1ef2bc55b62871181af5cd955

SHA512
40c1481642f8ad2fed9514d0968a43151a189c61e53d60990183e81c16891cdd7a0983568b2910dc8a9098a408136468cff5660d0607cf06331275937c1f60e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\install.vbs

Filesize
654B

MD5
f7675c9acf9755bfcc451c94484b16d5

SHA1
3390f03e58304d06005d60a606ef4c4f2d425d17

SHA256
3f0af15c7f89de33200c2791f510919000cbfc079c0bb29fd3b1b68fb58f240c

SHA512
e98ca573b851194ece4f393998bce577ba94c3dd2563bdbec36429ca0304ea8a7d4ef3a5b47c743374805dcc8bd0cadf1c4a297c1c0c44f33a09f4ac2e64e032

Download Submit
memory/2456-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-22-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-24-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-11-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-12-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-20-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-21-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-13-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-23-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-19-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-25-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-26-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-27-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-28-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-29-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-30-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download
memory/2808-31-0x0000000000080000-0x00000000000FF000-memory.dmp

Filesize
508KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads