remcos | fa2b7bf295ebf55e26e4ddeaaf8b5119b5332b3b6c184a530532d162411bc3b4

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
25-09-2024 20:03

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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
2276	powershell.exe
2976	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-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	Confirmation Order.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2412 set thread context of 804	2412	Confirmation Order.exe	101

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	Confirmation Order.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
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
3872	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2976	powershell.exe
2276	powershell.exe
2976	powershell.exe
2276	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2976	powershell.exe
Token: SeDebugPrivilege	2276	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2976	2412	Confirmation Order.exe	95
PID 2412 wrote to memory of 2976	2412	Confirmation Order.exe	95
PID 2412 wrote to memory of 2976	2412	Confirmation Order.exe	95
PID 2412 wrote to memory of 2276	2412	Confirmation Order.exe	97
PID 2412 wrote to memory of 2276	2412	Confirmation Order.exe	97
PID 2412 wrote to memory of 2276	2412	Confirmation Order.exe	97
PID 2412 wrote to memory of 3872	2412	Confirmation Order.exe	99
PID 2412 wrote to memory of 3872	2412	Confirmation Order.exe	99
PID 2412 wrote to memory of 3872	2412	Confirmation Order.exe	99
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101
PID 2412 wrote to memory of 804	2412	Confirmation Order.exe	101

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:2412
- 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:2976
- 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:2276
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bDXSeyoVzkpA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA28.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3872
- 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:804

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
e11f2c9e3c7a9cca1903cc05ace08286

SHA1
1802c24a9246b82c2faa8b489c1cb962bf3203e4

SHA256
35ff9389abb87e5d1c5ebdf9c9a3e2a15dadcc319404006017933e903a2cb6cf

SHA512
e790e429d4ada0105bce86e9a2e08c62bd2f46c0a86c9face7958cfbea5bcf3dc2e2f7b6009fca7d8c28c70911c846d9b4dc3722a1eeecc0846d596f9bed323b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nw2z5ome.qkg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA28.tmp

Filesize
1KB

MD5
b425ea798025bd4dab4b4c7f7761b6c9

SHA1
9c71286484f0dbd1414fbefea61e080e907d9969

SHA256
9750c90a3bb4e34e8e44ef7e091c5502e893a93dc56a720f37b33beebbafde83

SHA512
a3201ccf66fbbd60b7b2a44d9a98b5f5f01011ed0c093f7f45b64a6b13ce1ebe5e64784d4085c6be773a9a05a875c25fc2b7733c71d743761139dbec37d2d2d8

Download Submit
memory/804-94-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-35-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-34-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-79-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-76-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-95-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-96-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-33-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/804-31-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2276-78-0x0000000006EA0000-0x0000000006EBA000-memory.dmp

Filesize
104KB

Download
memory/2276-54-0x00000000753A0000-0x00000000753EC000-memory.dmp

Filesize
304KB

Download
memory/2276-92-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2276-20-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2276-22-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2276-77-0x00000000074E0000-0x0000000007B5A000-memory.dmp

Filesize
6.5MB

Download
memory/2276-75-0x0000000006D60000-0x0000000006E03000-memory.dmp

Filesize
652KB

Download
memory/2276-73-0x0000000006D30000-0x0000000006D4E000-memory.dmp

Filesize
120KB

Download
memory/2276-53-0x0000000006CF0000-0x0000000006D22000-memory.dmp

Filesize
200KB

Download
memory/2276-85-0x00000000071E0000-0x00000000071FA000-memory.dmp

Filesize
104KB

Download
memory/2412-5-0x00000000050D0000-0x00000000050DA000-memory.dmp

Filesize
40KB

Download
memory/2412-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/2412-10-0x0000000009530000-0x00000000095CC000-memory.dmp

Filesize
624KB

Download
memory/2412-9-0x0000000006E30000-0x0000000006EEE000-memory.dmp

Filesize
760KB

Download
memory/2412-2-0x00000000053C0000-0x0000000005964000-memory.dmp

Filesize
5.6MB

Download
memory/2412-8-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2412-40-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2412-3-0x0000000004F10000-0x0000000004FA2000-memory.dmp

Filesize
584KB

Download
memory/2412-7-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/2412-4-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2412-6-0x0000000006CD0000-0x0000000006CE2000-memory.dmp

Filesize
72KB

Download
memory/2412-1-0x00000000005C0000-0x00000000006A6000-memory.dmp

Filesize
920KB

Download
memory/2976-51-0x0000000005D60000-0x0000000005D7E000-memory.dmp

Filesize
120KB

Download
memory/2976-84-0x00000000072D0000-0x00000000072E4000-memory.dmp

Filesize
80KB

Download
memory/2976-83-0x00000000072C0000-0x00000000072CE000-memory.dmp

Filesize
56KB

Download
memory/2976-86-0x00000000073B0000-0x00000000073B8000-memory.dmp

Filesize
32KB

Download
memory/2976-82-0x0000000007290000-0x00000000072A1000-memory.dmp

Filesize
68KB

Download
memory/2976-81-0x0000000007310000-0x00000000073A6000-memory.dmp

Filesize
600KB

Download
memory/2976-80-0x0000000007100000-0x000000000710A000-memory.dmp

Filesize
40KB

Download
memory/2976-93-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2976-56-0x00000000753A0000-0x00000000753EC000-memory.dmp

Filesize
304KB

Download
memory/2976-52-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

Filesize
304KB

Download
memory/2976-23-0x0000000004E70000-0x0000000004E92000-memory.dmp

Filesize
136KB

Download
memory/2976-24-0x00000000055A0000-0x0000000005606000-memory.dmp

Filesize
408KB

Download
memory/2976-41-0x0000000005870000-0x0000000005BC4000-memory.dmp

Filesize
3.3MB

Download
memory/2976-30-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/2976-19-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2976-18-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2976-17-0x0000000004F70000-0x0000000005598000-memory.dmp

Filesize
6.2MB

Download
memory/2976-16-0x0000000074B10000-0x00000000752C0000-memory.dmp

Filesize
7.7MB

Download
memory/2976-15-0x0000000004790000-0x00000000047C6000-memory.dmp

Filesize
216KB

Download