remcos | fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277

General

Target

HSBC Payment Advice_pdf.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
2732	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2660 set thread context of 2664	2660	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	HSBC Payment Advice_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
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
2668	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2660	HSBC Payment Advice_pdf.exe
2660	HSBC Payment Advice_pdf.exe
2660	HSBC Payment Advice_pdf.exe
2660	HSBC Payment Advice_pdf.exe
2732	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	HSBC Payment Advice_pdf.exe
Token: SeDebugPrivilege	2732	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2664	HSBC Payment Advice_pdf.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2664	HSBC Payment Advice_pdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2664	HSBC Payment Advice_pdf.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2732	2660	HSBC Payment Advice_pdf.exe	30
PID 2660 wrote to memory of 2732	2660	HSBC Payment Advice_pdf.exe	30
PID 2660 wrote to memory of 2732	2660	HSBC Payment Advice_pdf.exe	30
PID 2660 wrote to memory of 2732	2660	HSBC Payment Advice_pdf.exe	30
PID 2660 wrote to memory of 2668	2660	HSBC Payment Advice_pdf.exe	31
PID 2660 wrote to memory of 2668	2660	HSBC Payment Advice_pdf.exe	31
PID 2660 wrote to memory of 2668	2660	HSBC Payment Advice_pdf.exe	31
PID 2660 wrote to memory of 2668	2660	HSBC Payment Advice_pdf.exe	31
PID 2660 wrote to memory of 2720	2660	HSBC Payment Advice_pdf.exe	34
PID 2660 wrote to memory of 2720	2660	HSBC Payment Advice_pdf.exe	34
PID 2660 wrote to memory of 2720	2660	HSBC Payment Advice_pdf.exe	34
PID 2660 wrote to memory of 2720	2660	HSBC Payment Advice_pdf.exe	34
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	HSBC Payment Advice_pdf.exe	35
PID 2660 wrote to memory of 2664	2660	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:2660
- 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:2732
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FuWEVfUSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp233A.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2668
- C:\Users\Admin\AppData\Local\Temp\HSBC Payment Advice_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\HSBC Payment Advice_pdf.exe"
  2⤵
  PID:2720
- 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:2664

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:\ProgramData\sos\logs.dat

Filesize
236B

MD5
4e65ff3dc2a5ba48e0e9c202fb298c11

SHA1
1507e2336ae98c72e3c69712132526b389d97588

SHA256
e6d33b9abaed07fdd092d82e386b4829ae82c6214ee3241600893cf034897d5d

SHA512
fbf3e24f1313816a23b00027e8c6ce24f20935dd2c9144fd572e8a222cad70433f7badbcbd8c3c7db6777b4bd87e5178417c32b237c5b08b8100f963923ee09c

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp233A.tmp

Filesize
1KB

MD5
dc93344367e32a5bf58038c630dd1220

SHA1
82eeb77a6ab814c4f5d69e4b4e4060cd4876557c

SHA256
ec2095deca2bad7e7db27dca31c287782e506bb578fd3d372ba275661c21254e

SHA512
a727bed5c0a671a3e794c2f4379e4be544116e7c9031811ecd00382d83569527a0de6f990d6ace9283059b102b12e7d70d9a81475588e0821ee8267dcb5d98c4

Download Submit
memory/2660-0-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2660-1-0x0000000000A80000-0x0000000000B7E000-memory.dmp

Filesize
1016KB

Download
memory/2660-2-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-3-0x00000000009D0000-0x00000000009E8000-memory.dmp

Filesize
96KB

Download
memory/2660-4-0x000000007490E000-0x000000007490F000-memory.dmp

Filesize
4KB

Download
memory/2660-5-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-6-0x00000000054F0000-0x00000000055B0000-memory.dmp

Filesize
768KB

Download
memory/2660-35-0x0000000074900000-0x0000000074FEE000-memory.dmp

Filesize
6.9MB

Download
memory/2664-16-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-39-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-22-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-18-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-14-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-12-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-60-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2664-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads