remcos | fd9c0fb6f463cee4975445c4ff19301daeed95a081f0428c5ef7aad815dd7277

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
08-09-2024 15:10

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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

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
516	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	HSBCPaymentAdvicepdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3456 set thread context of 2428	3456	HSBCPaymentAdvicepdf.exe	91

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HSBCPaymentAdvicepdf.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
3436	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3456	HSBCPaymentAdvicepdf.exe
3456	HSBCPaymentAdvicepdf.exe
3456	HSBCPaymentAdvicepdf.exe
516	powershell.exe
3456	HSBCPaymentAdvicepdf.exe
516	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3456	HSBCPaymentAdvicepdf.exe
Token: SeDebugPrivilege	516	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2428	HSBCPaymentAdvicepdf.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2428	HSBCPaymentAdvicepdf.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2428	HSBCPaymentAdvicepdf.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3456 wrote to memory of 516	3456	HSBCPaymentAdvicepdf.exe	86
PID 3456 wrote to memory of 516	3456	HSBCPaymentAdvicepdf.exe	86
PID 3456 wrote to memory of 516	3456	HSBCPaymentAdvicepdf.exe	86
PID 3456 wrote to memory of 3436	3456	HSBCPaymentAdvicepdf.exe	88
PID 3456 wrote to memory of 3436	3456	HSBCPaymentAdvicepdf.exe	88
PID 3456 wrote to memory of 3436	3456	HSBCPaymentAdvicepdf.exe	88
PID 3456 wrote to memory of 5060	3456	HSBCPaymentAdvicepdf.exe	90
PID 3456 wrote to memory of 5060	3456	HSBCPaymentAdvicepdf.exe	90
PID 3456 wrote to memory of 5060	3456	HSBCPaymentAdvicepdf.exe	90
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91
PID 3456 wrote to memory of 2428	3456	HSBCPaymentAdvicepdf.exe	91

C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe
"C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3456
- 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:516
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FuWEVfUSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC0FE.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3436
- C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe
  "C:\Users\Admin\AppData\Local\Temp\HSBCPaymentAdvicepdf.exe"
  2⤵
  PID:5060
- 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:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\sos\logs.dat

Filesize
230B

MD5
8b10e34b71cced253b44d888d4fe57b7

SHA1
84b27363262c9a6ad4d51ea5c5d2550867e2e8be

SHA256
388ce986811914e406edfbf84e25331b12af50878f24a540c4cffbb55fb44eab

SHA512
85a173ad671d898f9528fcc37af1084b93194150742a93957ae7a6112c5bbe22696b97c574281b4dc280c9f907d4b3721b64b5caa29673de16af2f9fd4aeee81

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oe5sz31i.3zj.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC0FE.tmp

Filesize
1KB

MD5
911768342f36958ff40978025af82064

SHA1
1230b0df2f68a128507233f12a07a7a60e2ae384

SHA256
022b1515bdbbc65231c0409fe215f02e8b5c1f34668bf57073c2146f5dec6dda

SHA512
776601714aad7332041bc5ee34bc9e866de4448a2e4fdf9db4b127f0d53f16658859c100026a2b9547d06e3abb1881a2688e5569dd7dc5bfffe6c46ae79f6af9

Download Submit
memory/516-46-0x0000000006520000-0x000000000656C000-memory.dmp

Filesize
304KB

Download
memory/516-45-0x0000000006490000-0x00000000064AE000-memory.dmp

Filesize
120KB

Download
memory/516-72-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/516-69-0x0000000007AD0000-0x0000000007AD8000-memory.dmp

Filesize
32KB

Download
memory/516-68-0x0000000007AF0000-0x0000000007B0A000-memory.dmp

Filesize
104KB

Download
memory/516-67-0x00000000079F0000-0x0000000007A04000-memory.dmp

Filesize
80KB

Download
memory/516-66-0x00000000079E0000-0x00000000079EE000-memory.dmp

Filesize
56KB

Download
memory/516-65-0x00000000079B0000-0x00000000079C1000-memory.dmp

Filesize
68KB

Download
memory/516-15-0x0000000002B80000-0x0000000002BB6000-memory.dmp

Filesize
216KB

Download
memory/516-17-0x0000000005770000-0x0000000005D98000-memory.dmp

Filesize
6.2MB

Download
memory/516-18-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/516-64-0x0000000007A30000-0x0000000007AC6000-memory.dmp

Filesize
600KB

Download
memory/516-19-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/516-63-0x0000000007820000-0x000000000782A000-memory.dmp

Filesize
40KB

Download
memory/516-62-0x00000000077B0000-0x00000000077CA000-memory.dmp

Filesize
104KB

Download
memory/516-61-0x0000000007E00000-0x000000000847A000-memory.dmp

Filesize
6.5MB

Download
memory/516-60-0x0000000007480000-0x0000000007523000-memory.dmp

Filesize
652KB

Download
memory/516-23-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/516-22-0x00000000055E0000-0x0000000005646000-memory.dmp

Filesize
408KB

Download
memory/516-20-0x00000000054C0000-0x00000000054E2000-memory.dmp

Filesize
136KB

Download
memory/516-59-0x0000000006AC0000-0x0000000006ADE000-memory.dmp

Filesize
120KB

Download
memory/516-49-0x00000000715D0000-0x000000007161C000-memory.dmp

Filesize
304KB

Download
memory/516-37-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/516-36-0x0000000005EA0000-0x00000000061F4000-memory.dmp

Filesize
3.3MB

Download
memory/516-48-0x0000000006A50000-0x0000000006A82000-memory.dmp

Filesize
200KB

Download
memory/2428-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-103-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-44-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-111-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-110-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-30-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-98-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-97-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-92-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-91-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-85-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-84-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2428-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3456-4-0x0000000004ED0000-0x0000000004EDA000-memory.dmp

Filesize
40KB

Download
memory/3456-1-0x0000000000370000-0x000000000046E000-memory.dmp

Filesize
1016KB

Download
memory/3456-0-0x000000007508E000-0x000000007508F000-memory.dmp

Filesize
4KB

Download
memory/3456-6-0x0000000005100000-0x000000000519C000-memory.dmp

Filesize
624KB

Download
memory/3456-8-0x000000007508E000-0x000000007508F000-memory.dmp

Filesize
4KB

Download
memory/3456-9-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/3456-10-0x0000000006170000-0x0000000006230000-memory.dmp

Filesize
768KB

Download
memory/3456-3-0x0000000004E10000-0x0000000004EA2000-memory.dmp

Filesize
584KB

Download
memory/3456-2-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/3456-39-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download
memory/3456-7-0x00000000050D0000-0x00000000050E8000-memory.dmp

Filesize
96KB

Download
memory/3456-5-0x0000000075080000-0x0000000075830000-memory.dmp

Filesize
7.7MB

Download