remcos | 7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d

Analysis

max time kernel
148s
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
07-09-2024 01:26

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
Size

1.0MB
MD5

f2e67a1bef67fa4f49dce815b93eeefb
SHA1

1b75d6182523dc35cf13e5e9430194196fb44aeb
SHA256

7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d
SHA512

d0b2dd442d20921c63716eb5974fcd450d3ff800bbcb9dae84efc1743f0dcd8784c72debaa86841fa90d8a3c1e727d194adc022b4513484d9820777ceef4b7a0
SSDEEP

24576:R1iZQZd2PbZwVslxyAcM3wpGVkYZPGX2lxxuQQGnI:zUZTl4Ad31VkYhs+QtP

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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
4392	powershell.exe
2476	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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3008 set thread context of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94

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 5 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	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2340	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
2476	powershell.exe
3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
4392	powershell.exe
2476	powershell.exe
4392	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
Token: SeDebugPrivilege	2476	powershell.exe
Token: SeDebugPrivilege	4392	powershell.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2680	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2680	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2680	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 3008 wrote to memory of 2476	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	88
PID 3008 wrote to memory of 2476	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	88
PID 3008 wrote to memory of 2476	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	88
PID 3008 wrote to memory of 4392	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	90
PID 3008 wrote to memory of 4392	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	90
PID 3008 wrote to memory of 4392	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	90
PID 3008 wrote to memory of 2340	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	92
PID 3008 wrote to memory of 2340	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	92
PID 3008 wrote to memory of 2340	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	92
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94
PID 3008 wrote to memory of 2680	3008	7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe	94

C:\Users\Admin\AppData\Local\Temp\7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
"C:\Users\Admin\AppData\Local\Temp\7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.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:3008
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2476
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\qmXhNnW.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4392
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\qmXhNnW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93A5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2340
- C:\Users\Admin\AppData\Local\Temp\7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe
  "C:\Users\Admin\AppData\Local\Temp\7bdca91211afbb94f733d78892cf0568a79e63ef230b5dfa919966e73b26717d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:2680

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

Loading Replay Monitor...

Downloads

C:\ProgramData\sos\logs.dat

Filesize
318B

MD5
834014221fd43b4b1501dea9403e75f3

SHA1
0248987264cbd5d85e4b14a4ba7650d0e3aee1dd

SHA256
1ed638dc18c931d69d0971f6fd9e9cdb8b34133b25d48bf67826c1a84b876ccd

SHA512
f33268537dd91bfdddf209f884788ed98eba5bc7cabc4dadec01a4237d769fb6b0532df637dcc4af39cfa091e22530fb4b8b6c112652f4b7540e4ebcc4dd1fd8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
4b3585906884bd20363f4fc3e052ca1c

SHA1
60c3e556f5802e08472e4478adb83a95fac76e42

SHA256
68fbdb927bc191b287f7a13ec51e0c920112f55a68bfe1e9b9eb454641f2d131

SHA512
b3e97b4e371766cb00be3f3aa0fa7c79964e0c5667ea402a37a554a64170a65c7152d373a6191f6433c00feb1cdbf47ba179dc29bd54d1c231c6f494212d65a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s0e3zmty.oer.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp93A5.tmp

Filesize
1KB

MD5
faff805ba143d29138e92e2941150cbd

SHA1
a1f6e26d72329efe0bcd1c33577b2c6004b370b7

SHA256
60c32cd277d686488fcc64811f402e1065273a95eb8feb882162760be6245404

SHA512
b2c6cec750ca5632694a7c381c945eccd78348b3d5051aaf600859df5cc82d302485539d699e52f5e0736cee507bc6c5feb8e3355e5199c191fbd4708d18fc2c

Download Submit
memory/2476-84-0x0000000007670000-0x000000000767E000-memory.dmp

Filesize
56KB

Download
memory/2476-93-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2476-76-0x00000000070D0000-0x00000000070EE000-memory.dmp

Filesize
120KB

Download
memory/2476-56-0x0000000007110000-0x0000000007142000-memory.dmp

Filesize
200KB

Download
memory/2476-80-0x0000000007440000-0x000000000745A000-memory.dmp

Filesize
104KB

Download
memory/2476-81-0x00000000074B0000-0x00000000074BA000-memory.dmp

Filesize
40KB

Download
memory/2476-57-0x0000000074E00000-0x0000000074E4C000-memory.dmp

Filesize
304KB

Download
memory/2476-16-0x00000000027F0000-0x0000000002826000-memory.dmp

Filesize
216KB

Download
memory/2476-17-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2476-19-0x0000000005340000-0x0000000005968000-memory.dmp

Filesize
6.2MB

Download
memory/2476-18-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2476-21-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/2476-27-0x0000000005A60000-0x0000000005AC6000-memory.dmp

Filesize
408KB

Download
memory/2476-28-0x0000000005AD0000-0x0000000005B36000-memory.dmp

Filesize
408KB

Download
memory/2476-82-0x00000000076C0000-0x0000000007756000-memory.dmp

Filesize
600KB

Download
memory/2476-78-0x0000000007350000-0x00000000073F3000-memory.dmp

Filesize
652KB

Download
memory/2476-34-0x0000000005B40000-0x0000000005E94000-memory.dmp

Filesize
3.3MB

Download
memory/2476-83-0x0000000007640000-0x0000000007651000-memory.dmp

Filesize
68KB

Download
memory/2476-20-0x0000000005170000-0x0000000005192000-memory.dmp

Filesize
136KB

Download
memory/2680-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-100-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-106-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-119-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-120-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-105-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-126-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2680-127-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/3008-5-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/3008-2-0x0000000005920000-0x00000000059B2000-memory.dmp

Filesize
584KB

Download
memory/3008-7-0x0000000006F90000-0x000000000706E000-memory.dmp

Filesize
888KB

Download
memory/3008-8-0x0000000007090000-0x00000000070A8000-memory.dmp

Filesize
96KB

Download
memory/3008-48-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3008-9-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/3008-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/3008-10-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/3008-11-0x0000000006B60000-0x0000000006C20000-memory.dmp

Filesize
768KB

Download
memory/3008-6-0x0000000005BA0000-0x0000000005C3C000-memory.dmp

Filesize
624KB

Download
memory/3008-3-0x0000000005F70000-0x0000000006514000-memory.dmp

Filesize
5.6MB

Download
memory/3008-1-0x0000000000EE0000-0x0000000000FE6000-memory.dmp

Filesize
1.0MB

Download
memory/3008-4-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4392-94-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4392-79-0x0000000008010000-0x000000000868A000-memory.dmp

Filesize
6.5MB

Download
memory/4392-87-0x0000000007CF0000-0x0000000007CF8000-memory.dmp

Filesize
32KB

Download
memory/4392-86-0x0000000007D10000-0x0000000007D2A000-memory.dmp

Filesize
104KB

Download
memory/4392-85-0x0000000007C10000-0x0000000007C24000-memory.dmp

Filesize
80KB

Download
memory/4392-33-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4392-58-0x0000000074E00000-0x0000000074E4C000-memory.dmp

Filesize
304KB

Download
memory/4392-49-0x0000000006580000-0x000000000659E000-memory.dmp

Filesize
120KB

Download
memory/4392-50-0x0000000006740000-0x000000000678C000-memory.dmp

Filesize
304KB

Download