remcos | fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5

General

Target

HSBC Payment Advice_pdf.exe
Size

1.0MB
MD5

f8c03f656b356b3477ea05d7427bce3e
SHA1

b20be63658060f9356e90e7846c2091069950682
SHA256

fd289f86941e426b8116ead4b68649fac1dc3fc5611da26af9a446f911b30ea5
SHA512

35df2187b512fe1908aae5159741e3d666e078fc0e4bbba17c693fdfffab810f8abaf4fe622de3d5a1c32e70db097c0608bc4b9b7723282cd635638971d888d6
SSDEEP

24576:nIUobyTkpVyd+8OuyBNtpFgX9AB5NHY0hBMfUzvB0JERhM1:d96o7OuyBTqCNHY0r50e41

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
2272	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2332 set thread context of 2712	2332	HSBC Payment Advice_pdf.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	HSBC Payment Advice_pdf.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	HSBC Payment Advice_pdf.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
2716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2332	HSBC Payment Advice_pdf.exe
2332	HSBC Payment Advice_pdf.exe
2272	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	HSBC Payment Advice_pdf.exe
Token: SeDebugPrivilege	2272	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2712	HSBC Payment Advice_pdf.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2712	HSBC Payment Advice_pdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	HSBC Payment Advice_pdf.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2272	2332	HSBC Payment Advice_pdf.exe	31
PID 2332 wrote to memory of 2272	2332	HSBC Payment Advice_pdf.exe	31
PID 2332 wrote to memory of 2272	2332	HSBC Payment Advice_pdf.exe	31
PID 2332 wrote to memory of 2272	2332	HSBC Payment Advice_pdf.exe	31
PID 2332 wrote to memory of 2716	2332	HSBC Payment Advice_pdf.exe	33
PID 2332 wrote to memory of 2716	2332	HSBC Payment Advice_pdf.exe	33
PID 2332 wrote to memory of 2716	2332	HSBC Payment Advice_pdf.exe	33
PID 2332 wrote to memory of 2716	2332	HSBC Payment Advice_pdf.exe	33
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35
PID 2332 wrote to memory of 2712	2332	HSBC Payment Advice_pdf.exe	35

C:\Users\Admin\AppData\Local\Temp\HSBC Payment Advice_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\HSBC Payment Advice_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UvwokF.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2272
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UvwokF" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEB.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2716
- C:\Users\Admin\AppData\Local\Temp\HSBC Payment Advice_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\HSBC Payment Advice_pdf.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2712

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
236B

MD5
049c2be58408e4fcb2e4cffbecf84ee4

SHA1
e5566161a0becfecf84ff2138158baa648ee1f58

SHA256
37c728667330c8c4fc4e219e730ad635d01b0cf05c3b64786aa3c2ac5d29cee8

SHA512
55088c7ea0805e78c350b54859801354536ffc9da67de0b81ecf9b68d7e9e8a61d0c80ec3cddadf2bf8997dd14fd24a87e01a30584cbfc42dcc61df9ff022031

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

Filesize
1KB

MD5
d684e74310b041049efc41591b3f1003

SHA1
b9145446e7edca323c0d9de743f18971be24854b

SHA256
d7206705db75314d1d93b908364e6d626408ed3147a1a14fb6acf916e5ad6114

SHA512
633dc51c7dcf5d0239f074601c9bb95e970d950a944b697273db7aa4bc8a99099d124b2816ff5bc365b38fc9c2574286497df9d07e526f6f66abca3213dc2247

Download Submit
memory/2332-0-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

Filesize
4KB

Download
memory/2332-1-0x0000000000EA0000-0x0000000000FAE000-memory.dmp

Filesize
1.1MB

Download
memory/2332-2-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-3-0x0000000000500000-0x0000000000518000-memory.dmp

Filesize
96KB

Download
memory/2332-4-0x0000000074DAE000-0x0000000074DAF000-memory.dmp

Filesize
4KB

Download
memory/2332-5-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2332-6-0x0000000004C00000-0x0000000004CC0000-memory.dmp

Filesize
768KB

Download
memory/2332-33-0x0000000074DA0000-0x000000007548E000-memory.dmp

Filesize
6.9MB

Download
memory/2712-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-28-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-34-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2712-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2712-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads