remcos | fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277

General

Target

HSBCPaymentAdvicepdf.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
2008	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3020 set thread context of 2116	3020	HSBCPaymentAdvicepdf.exe	35

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	HSBCPaymentAdvicepdf.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	HSBCPaymentAdvicepdf.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
2280	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3020	HSBCPaymentAdvicepdf.exe
3020	HSBCPaymentAdvicepdf.exe
2008	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	HSBCPaymentAdvicepdf.exe
Token: SeDebugPrivilege	2008	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2116	HSBCPaymentAdvicepdf.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2116	HSBCPaymentAdvicepdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2116	HSBCPaymentAdvicepdf.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3020 wrote to memory of 2008	3020	HSBCPaymentAdvicepdf.exe	31
PID 3020 wrote to memory of 2008	3020	HSBCPaymentAdvicepdf.exe	31
PID 3020 wrote to memory of 2008	3020	HSBCPaymentAdvicepdf.exe	31
PID 3020 wrote to memory of 2008	3020	HSBCPaymentAdvicepdf.exe	31
PID 3020 wrote to memory of 2280	3020	HSBCPaymentAdvicepdf.exe	33
PID 3020 wrote to memory of 2280	3020	HSBCPaymentAdvicepdf.exe	33
PID 3020 wrote to memory of 2280	3020	HSBCPaymentAdvicepdf.exe	33
PID 3020 wrote to memory of 2280	3020	HSBCPaymentAdvicepdf.exe	33
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35
PID 3020 wrote to memory of 2116	3020	HSBCPaymentAdvicepdf.exe	35

C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe
"C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3020
- 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:2008
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FuWEVfUSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDAA6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2280
- C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe
  "C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2116

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
230B

MD5
47119da63b9b375f5f1ea14ef5212916

SHA1
7d1235832288d38cf59f88e97be002ad45bc818b

SHA256
2b0d03d8fe1dbb04da23caff20823ef378020192882a7f98e1edbfbc1a7a78c5

SHA512
dcd6b4d74d65036160836e7f1741c79bc5720cf256e8c7fc14b2c69915edfa37bd0620b0f53ea6e333daed6930ba7d27b721a58b452ecff6548d6c83ddcc23d0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDAA6.tmp

Filesize
1KB

MD5
3fd3721ca4e9e6d610d41474769f317b

SHA1
bd4f4260e20708338dc3e0ecea2f9a73539a505a

SHA256
b5f83eee112b9149583e0e4068f32e3eae3cc8c11a1027303bbeaf3d29422d0e

SHA512
8e3b8713d0d80fdd229154e23bb1b4a70d894e6426dc5c3bfd5e94519f9a575583b514aff5adf3064ae9ddb5a33cffc961bd5e99e01ad432dea802b955980bfc

Download Submit
memory/2116-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-58-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-15-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2116-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2116-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3020-3-0x00000000008B0000-0x00000000008C8000-memory.dmp

Filesize
96KB

Download
memory/3020-1-0x0000000000930000-0x0000000000A2E000-memory.dmp

Filesize
1016KB

Download
memory/3020-5-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/3020-0-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/3020-33-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/3020-2-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/3020-6-0x0000000004F90000-0x0000000005050000-memory.dmp

Filesize
768KB

Download
memory/3020-4-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads