remcos | fa2b7bf295ebf55e26e4ddeaaf8b5119b5332b3b6c184a530532d162411bc3b4

Analysis

max time kernel
149s
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
25-09-2024 13:20

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General

Target

Confirmation Order.exe
Size

892KB
MD5

3b13b07b05ea3f2084ee3c38080fffe3
SHA1

dde112544004281ad7d02b36c607bc4a258f22a6
SHA256

b93408af1dfa127e3b11d16cd92dab65f448d77fa933259c139bb0f0e6d33a75
SHA512

c09987d78d52fc94bc991b40380b6f5752f1b15139850d24ed93e9ea8ce74add4b4b477493fb8c0a6980de9e14fb511123e2571622c3c5a46f4402f09d037fe0
SSDEEP

12288:5Eqv8RratEshTEMAiqoWpVvfS4D36FUOJT02id9IV/SxjTWAY+acgp8bQbQk:J8OZTEMAifWTvfuL42id94cgGIQ

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

127.0.0.1:59321

nnamoo.duckdns.org:59321

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-41EVS0
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
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
1656	powershell.exe
2432	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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	Confirmation Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1764 set thread context of 4112	1764	Confirmation Order.exe	93

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	powershell.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	Confirmation Order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Confirmation Order.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
2628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1656	powershell.exe
2432	powershell.exe
2432	powershell.exe
1656	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	powershell.exe
Token: SeDebugPrivilege	2432	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 1656	1764	Confirmation Order.exe	87
PID 1764 wrote to memory of 1656	1764	Confirmation Order.exe	87
PID 1764 wrote to memory of 1656	1764	Confirmation Order.exe	87
PID 1764 wrote to memory of 2432	1764	Confirmation Order.exe	89
PID 1764 wrote to memory of 2432	1764	Confirmation Order.exe	89
PID 1764 wrote to memory of 2432	1764	Confirmation Order.exe	89
PID 1764 wrote to memory of 2628	1764	Confirmation Order.exe	90
PID 1764 wrote to memory of 2628	1764	Confirmation Order.exe	90
PID 1764 wrote to memory of 2628	1764	Confirmation Order.exe	90
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93
PID 1764 wrote to memory of 4112	1764	Confirmation Order.exe	93

C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
"C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1764
- 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\Confirmation Order.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1656
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bDXSeyoVzkpA.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2432
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bDXSeyoVzkpA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB594.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2628
- C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe
  "C:\Users\Admin\AppData\Local\Temp\Confirmation Order.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4112

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

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
6552cb6e15c71cb95acfba1ccfe2ed97

SHA1
05add7e6348429d9d8929bcb52d0c13e618fbf2f

SHA256
1bd4b208f82332f0e4b832e21e6ba35fa7227369b2a237059d9665e14e1f306f

SHA512
ef814657cd989d04fae6376877996ebeb88e5aff9ae9357f46fc1c03e94fe283a045e4f8f993da2ec80b5248346df91c381e5ce314b8b0f81f1ed121c43b256c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nmprvs3o.ttm.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB594.tmp

Filesize
1KB

MD5
bbd1a17b459a275d069d985f59b35986

SHA1
0dbed6f557d5361517cfda2eecd68199685a651e

SHA256
6390db8118fafd766cdfa73902a514cfe06b467bcdb4282321c1124f8fdb72db

SHA512
83b28a7e8f0d684f945db854bdbe766c39f229d6e5d1d62769010143b978c4ea01f1c69038f246058fa17b169d362f2250e3c9c5235b08742bcebc6dcf5231e2

Download Submit
memory/1656-21-0x0000000004B80000-0x0000000004BA2000-memory.dmp

Filesize
136KB

Download
memory/1656-22-0x0000000004C20000-0x0000000004C86000-memory.dmp

Filesize
408KB

Download
memory/1656-94-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1656-87-0x00000000070C0000-0x00000000070C8000-memory.dmp

Filesize
32KB

Download
memory/1656-55-0x000000006F410000-0x000000006F45C000-memory.dmp

Filesize
304KB

Download
memory/1656-86-0x00000000070E0000-0x00000000070FA000-memory.dmp

Filesize
104KB

Download
memory/1656-85-0x0000000006FE0000-0x0000000006FF4000-memory.dmp

Filesize
80KB

Download
memory/1656-16-0x00000000020F0000-0x0000000002126000-memory.dmp

Filesize
216KB

Download
memory/1656-15-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1656-17-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1656-18-0x0000000004CA0000-0x00000000052C8000-memory.dmp

Filesize
6.2MB

Download
memory/1656-19-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1656-54-0x0000000006070000-0x00000000060A2000-memory.dmp

Filesize
200KB

Download
memory/1656-41-0x0000000005440000-0x0000000005794000-memory.dmp

Filesize
3.3MB

Download
memory/1656-23-0x00000000052D0000-0x0000000005336000-memory.dmp

Filesize
408KB

Download
memory/1764-4-0x0000000005A90000-0x0000000005A9A000-memory.dmp

Filesize
40KB

Download
memory/1764-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/1764-5-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1764-3-0x0000000005900000-0x0000000005992000-memory.dmp

Filesize
584KB

Download
memory/1764-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/1764-10-0x000000000A250000-0x000000000A2EC000-memory.dmp

Filesize
624KB

Download
memory/1764-7-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/1764-9-0x0000000007B20000-0x0000000007BDE000-memory.dmp

Filesize
760KB

Download
memory/1764-6-0x0000000005EA0000-0x0000000005EB2000-memory.dmp

Filesize
72KB

Download
memory/1764-52-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1764-8-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/1764-1-0x0000000000E40000-0x0000000000F26000-memory.dmp

Filesize
920KB

Download
memory/2432-93-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2432-78-0x0000000007180000-0x000000000719A000-memory.dmp

Filesize
104KB

Download
memory/2432-50-0x0000000005E50000-0x0000000005E6E000-memory.dmp

Filesize
120KB

Download
memory/2432-20-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2432-75-0x0000000006490000-0x00000000064AE000-memory.dmp

Filesize
120KB

Download
memory/2432-76-0x0000000007060000-0x0000000007103000-memory.dmp

Filesize
652KB

Download
memory/2432-77-0x00000000077D0000-0x0000000007E4A000-memory.dmp

Filesize
6.5MB

Download
memory/2432-53-0x00000000063B0000-0x00000000063FC000-memory.dmp

Filesize
304KB

Download
memory/2432-56-0x000000006F410000-0x000000006F45C000-memory.dmp

Filesize
304KB

Download
memory/2432-80-0x0000000007200000-0x000000000720A000-memory.dmp

Filesize
40KB

Download
memory/2432-81-0x0000000007400000-0x0000000007496000-memory.dmp

Filesize
600KB

Download
memory/2432-29-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/2432-83-0x0000000007380000-0x0000000007391000-memory.dmp

Filesize
68KB

Download
memory/2432-84-0x00000000073B0000-0x00000000073BE000-memory.dmp

Filesize
56KB

Download
memory/2432-45-0x0000000074420000-0x0000000074BD0000-memory.dmp

Filesize
7.7MB

Download
memory/4112-82-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-49-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-48-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-97-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4112-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download