remcos | b672afc774d2c57bce68ffea72a0236019a2bfe9fdae61b6deac4906f9dff2ce

General

Target

Quote.scr
Size

984KB
MD5

09d1f74cf4434fd7ff3ee83a2479d7a9
SHA1

d70d3164f2fe24b4263e56ff2df171c15110e33b
SHA256

9f05db230894256a6be6bf1b5b523894e621cf0b43632c0465c76717058d3ebb
SHA512

7e8aa100fb7da347d56b9f34a87a91e5dfe71fa370f9dd42f571e70a37b779819253682dfe879224e06427b0ff10f4951e5b31648945011fd44584d480b062bb
SSDEEP

24576:3IHzeLasydPeQ7h+ue7k+i4ZcPU33R1f4VTPx4pty9A:YaLaVJeQ0ue7Tcs33R14Fx4pty9A

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

2.58.56.182:2404

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-GM05WY
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2000	powershell.exe
2976	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2212 set thread context of 2672	2212	Quote.scr	37

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 5 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote.scr
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2212	Quote.scr
2212	Quote.scr
2212	Quote.scr
2000	powershell.exe
2212	Quote.scr
2976	powershell.exe
2212	Quote.scr
2212	Quote.scr

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2212	Quote.scr
Token: SeDebugPrivilege	2000	powershell.exe
Token: SeDebugPrivilege	2976	powershell.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2000	2212	Quote.scr	31
PID 2212 wrote to memory of 2000	2212	Quote.scr	31
PID 2212 wrote to memory of 2000	2212	Quote.scr	31
PID 2212 wrote to memory of 2000	2212	Quote.scr	31
PID 2212 wrote to memory of 2976	2212	Quote.scr	33
PID 2212 wrote to memory of 2976	2212	Quote.scr	33
PID 2212 wrote to memory of 2976	2212	Quote.scr	33
PID 2212 wrote to memory of 2976	2212	Quote.scr	33
PID 2212 wrote to memory of 2928	2212	Quote.scr	34
PID 2212 wrote to memory of 2928	2212	Quote.scr	34
PID 2212 wrote to memory of 2928	2212	Quote.scr	34
PID 2212 wrote to memory of 2928	2212	Quote.scr	34
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37
PID 2212 wrote to memory of 2672	2212	Quote.scr	37

C:\Users\Admin\AppData\Local\Temp\Quote.scr
"C:\Users\Admin\AppData\Local\Temp\Quote.scr" /S
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Quote.scr"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2000
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YPabBLvsNvjDRI.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2976
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YPabBLvsNvjDRI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEFCB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2928
- C:\Users\Admin\AppData\Local\Temp\Quote.scr
  "C:\Users\Admin\AppData\Local\Temp\Quote.scr"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEFCB.tmp

Filesize
1KB

MD5
ed72236439de4a6c4997c4828682e264

SHA1
fd14bb500a4765661232ec953ba125a333cadf68

SHA256
5a90d09b11e7393afa90a9f255717347e3f6b08b95078ec17575e0776d8f2a45

SHA512
7a95ea974115fce9a02438a38e83d3b8176ec8b5f1ba20cbb62c9504dd7d82f812a376042c70c7edbbd249b75360d57392cbb33a6c3ce8324495cd9bb4b01d9b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\0WHVW8619N0WMWBO66GT.temp

Filesize
7KB

MD5
2fe78c38302e50940e6a3aa54c5b48f2

SHA1
380c33f62568a903683d94904f6587cc275e478c

SHA256
9fd2dccc9914192176e458bca56407a97c600806ea80fdfcc1699894b5d7bf21

SHA512
2bcf628abc838800bc698bcc75191d2d031ae5dd1ebe6c44eca0302f7fba6a0af15b2767858aa38f1e93f811a17602fc3029311ca2d84a2a4f7b836614006ebd

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
6f16dd1b2d011e6881f9e9c7e6cb8e47

SHA1
a08590fd7ab096a2098776b627a6b49c982bfb95

SHA256
5f2ca9d9f4d7b9cb95f5d9bd4b95a81614f15e24e3af6c6b48f01fad801311fe

SHA512
df27f20d18b59b295b264de5ff7a03196db4810ae64f35db97954a24e6a4d94cda97bff5afb7a428d254afb313ae307bd4b0fd84923151a047e6ebee0d9819bc

Download Submit
memory/2212-0-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/2212-1-0x0000000001270000-0x000000000136C000-memory.dmp

Filesize
1008KB

Download
memory/2212-2-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2212-3-0x00000000003D0000-0x00000000003EE000-memory.dmp

Filesize
120KB

Download
memory/2212-4-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/2212-5-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2212-6-0x0000000000AF0000-0x0000000000BB4000-memory.dmp

Filesize
784KB

Download
memory/2212-36-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-25-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-39-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-33-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-32-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-29-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-27-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-35-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-23-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-19-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-21-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-37-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-38-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-34-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-41-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-42-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-43-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-44-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-45-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-46-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-47-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-48-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-49-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-50-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-51-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-52-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-56-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download
memory/2672-57-0x0000000000400000-0x0000000000480000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads