remcos | 7b680538ff7c476f84a714a074991c165c6b77677066897f68ce8100dbf87a21

General

Target

fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe
Size

993KB
MD5

d0da590b7edbc0da19fb22989e74094a
SHA1

96ebe02b6e7499acdf741aa1a770511345532cf3
SHA256

fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277
SHA512

6f7547230d5e005b6a9f04db0cb0c64c501dacf6f4836b1061f6dc2135ab8a06f06a1c5d7f90bd87491b534e4bfc20068d498b55bf896d63058ec8035df03a9b
SSDEEP

24576:SUobyDHF8HpzkLmV4ZDeLnmx/E/oLZT2nGr4oI6:DZKJILmVmeKx8gZlI

Score

10^/10

remcos udu discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

udu

C2

UDUM.WORK.GD:2431

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
vlc
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
true
keylog_file
logs.dat
keylog_flag
false
keylog_folder
sos
mouse_option
false
mutex
udm-2WYU92
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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2724	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2992 set thread context of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.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 4 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	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.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	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.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
2768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe
2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe
2724	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe
Token: SeDebugPrivilege	2724	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2796	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2796	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2796	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2992 wrote to memory of 2724	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	30
PID 2992 wrote to memory of 2724	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	30
PID 2992 wrote to memory of 2724	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	30
PID 2992 wrote to memory of 2724	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	30
PID 2992 wrote to memory of 2768	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	32
PID 2992 wrote to memory of 2768	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	32
PID 2992 wrote to memory of 2768	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	32
PID 2992 wrote to memory of 2768	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	32
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34
PID 2992 wrote to memory of 2796	2992	fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe	34

C:\Users\Admin\AppData\Local\Temp\fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe
"C:\Users\Admin\AppData\Local\Temp\fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2992
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FuWEVfUSU.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2724
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FuWEVfUSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB8B5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2768
- C:\Users\Admin\AppData\Local\Temp\fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe
  "C:\Users\Admin\AppData\Local\Temp\fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2796

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

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Downloads

C:\ProgramData\sos\logs.dat

Filesize
318B

MD5
4130f95a9488d8960a3d5677f1cfedb2

SHA1
a10d74729663658d13928749a21b0213628e6258

SHA256
c16d666ba7a0d52656ffe90d61a0d007e595901ffcc2e6e350ef759d811bf995

SHA512
50572f701c7f028cb913d77f43f845e8d9abc1aeed36e139c6cb1429e25bb3d66edce36c34da594d0362cab8adabadf207ad63eed97744c372c8fe5d32ce4c90

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB8B5.tmp

Filesize
1KB

MD5
150d0b0f91487f95824867be52779d62

SHA1
0a4abee9fe2194c6c034fd3842d0775619f7ad51

SHA256
d5b975bfc6c80edb644657d9f8e6135a3b9ee32ba04c406118c5664e3b101278

SHA512
8ba2a76be07683f8f25b1fdbc4e2c07bae6a5444e98dc72b47b021e6caedfd8461019d63f31a817d91ede57e4ffd5779a52a46a562cec9f5d7dd5eea1e6a8196

Download Submit
memory/2796-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2796-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2992-1-0x0000000000A70000-0x0000000000B6E000-memory.dmp

Filesize
1016KB

Download
memory/2992-0-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download
memory/2992-33-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2992-3-0x0000000000530000-0x0000000000548000-memory.dmp

Filesize
96KB

Download
memory/2992-2-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2992-6-0x0000000004ED0000-0x0000000004F90000-memory.dmp

Filesize
768KB

Download
memory/2992-5-0x00000000749B0000-0x000000007509E000-memory.dmp

Filesize
6.9MB

Download
memory/2992-4-0x00000000749BE000-0x00000000749BF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads