remcos | 8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf

General

Target

payment copy.exe
Size

887KB
MD5

4f17996e37a6f17855f4d99a3952e758
SHA1

a32236cca26fa4d3eb8b2a322f41c22f5aef5f1d
SHA256

8fb486798392dbf7aeeae64d1338d5be840b88b9be64e271c83010039a96b5bf
SHA512

1990ae9e17c1a78207b5588a2520676e8304f7cd431362eb5a50beb64d4ce3dc60f4e37fe874370f23199ddfe91e72801ed257a9edccbd6cfc8a3f3418c24c74
SSDEEP

12288:ZMdcDNLv2uxySCenLFFwcUXLneC8I87rFmfDJUnt2LzcNI0jJnDN8LojGByXH6:DDZEStLDwcUbeCJ3MI0L8KGg

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

127.0.0.1:59321

nnamoo.duckdns.org:59321

Attributes

audio_folder
MicRecords
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-41EVS0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat 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
1812	powershell.exe
2520	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2844 set thread context of 2564	2844	payment copy.exe	34

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	payment copy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
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	payment copy.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
2080	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2844	payment copy.exe
2844	payment copy.exe
2520	powershell.exe
1812	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	payment copy.exe
Token: SeDebugPrivilege	2520	powershell.exe
Token: SeDebugPrivilege	1812	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 1812	2844	payment copy.exe	28
PID 2844 wrote to memory of 1812	2844	payment copy.exe	28
PID 2844 wrote to memory of 1812	2844	payment copy.exe	28
PID 2844 wrote to memory of 1812	2844	payment copy.exe	28
PID 2844 wrote to memory of 2520	2844	payment copy.exe	30
PID 2844 wrote to memory of 2520	2844	payment copy.exe	30
PID 2844 wrote to memory of 2520	2844	payment copy.exe	30
PID 2844 wrote to memory of 2520	2844	payment copy.exe	30
PID 2844 wrote to memory of 2080	2844	payment copy.exe	32
PID 2844 wrote to memory of 2080	2844	payment copy.exe	32
PID 2844 wrote to memory of 2080	2844	payment copy.exe	32
PID 2844 wrote to memory of 2080	2844	payment copy.exe	32
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34
PID 2844 wrote to memory of 2564	2844	payment copy.exe	34

C:\Users\Admin\AppData\Local\Temp\payment copy.exe
"C:\Users\Admin\AppData\Local\Temp\payment copy.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844
- 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\payment copy.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1812
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FVapWeifj.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2520
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FVapWeifj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC8B.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2080
- C:\Users\Admin\AppData\Local\Temp\payment copy.exe
  "C:\Users\Admin\AppData\Local\Temp\payment copy.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564

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\tmpBC8B.tmp

Filesize
1KB

MD5
68a546253fb3cc20fca2a2eb1a87653f

SHA1
b61fd94ed795dd8fe725688db891ef310ce3fc66

SHA256
e9490391d7175e9d1f416887f2758e10f4256247493d90981a22b42f09be9d7a

SHA512
4c50e15521a281f9d3c761a938f56a30222def1e77801f1aa9ad1a7e45690fcb2deaa9aa29d73ca2a78bd14df5e252eba7015cde95dfc69bfe053ff2a309e786

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

Filesize
7KB

MD5
af7f3f58416459f12d1192d4f0fae556

SHA1
ecb47901f641db58de056dc59f629cde6fa1993e

SHA256
fadf75a1707b578827615fee607f7298cd976ecb268e252727d4ac72ba0dd9c2

SHA512
9ca0e6e5e7b605d87a74defc026a96961fa02448581b7d075309e1a1f04d0a8edd6d80e790ed2a52ed81597b42d577da12e01119a3846703475d4456363d4ed7

Download Submit
memory/2564-28-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-19-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-52-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-25-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2564-23-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-39-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-38-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-37-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-30-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-36-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-22-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-42-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-43-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-44-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2564-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2844-40-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-3-0x0000000000540000-0x0000000000550000-memory.dmp

Filesize
64KB

Download
memory/2844-6-0x0000000005100000-0x00000000051BE000-memory.dmp

Filesize
760KB

Download
memory/2844-1-0x0000000000AE0000-0x0000000000BC4000-memory.dmp

Filesize
912KB

Download
memory/2844-2-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/2844-5-0x00000000747D0000-0x0000000074EBE000-memory.dmp

Filesize
6.9MB

Download
memory/2844-4-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads