remcos | bdade424b285ccc8e249a2d1a485e35429ee4b6b2e168c65dc14b21463d346fa

Analysis

max time kernel
297s
max time network
286s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 16:55

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General

Target

Quotation.exe
Size

940KB
MD5

180ccd64c5a7543dd30077c48d20f67c
SHA1

b8a68eac1ff1f76b0d0dd1ebe5f795c2a02d1929
SHA256

42306b57fbe6db0e589995f0e50a28140c86715953a8d637e7ed42a59e2ebcb3
SHA512

06a26968634697648ddf33dd0d25fa022b01be5bc6f64c6e8210610a1e0e21ef628cc53f8c4449579897278fd975091f46174a5ebf0b2ec057960d748f0a262a
SSDEEP

24576:PkXOPSJCh5kbQ5Q+HHC/6UISfAHgwjc3b:PGRJu5CKNUISYHgwjc3

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

185.241.208.87:2404

Attributes

audio_folder
MicRecords
audio_path
ApplicationPath
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-7DRXD9
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
Remcos family
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
3632	powershell.exe
2488	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2880 set thread context of 1056	2880	Quotation.exe	105

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	Quotation.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	Quotation.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
2344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2880	Quotation.exe
2880	Quotation.exe
2880	Quotation.exe
2880	Quotation.exe
2880	Quotation.exe
2880	Quotation.exe
2488	powershell.exe
3632	powershell.exe
2488	powershell.exe
3632	powershell.exe
2880	Quotation.exe
2880	Quotation.exe
2880	Quotation.exe
2880	Quotation.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2880	Quotation.exe
Token: SeDebugPrivilege	3632	powershell.exe
Token: SeDebugPrivilege	2488	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 3632	2880	Quotation.exe	98
PID 2880 wrote to memory of 3632	2880	Quotation.exe	98
PID 2880 wrote to memory of 3632	2880	Quotation.exe	98
PID 2880 wrote to memory of 2488	2880	Quotation.exe	100
PID 2880 wrote to memory of 2488	2880	Quotation.exe	100
PID 2880 wrote to memory of 2488	2880	Quotation.exe	100
PID 2880 wrote to memory of 2344	2880	Quotation.exe	102
PID 2880 wrote to memory of 2344	2880	Quotation.exe	102
PID 2880 wrote to memory of 2344	2880	Quotation.exe	102
PID 2880 wrote to memory of 3416	2880	Quotation.exe	104
PID 2880 wrote to memory of 3416	2880	Quotation.exe	104
PID 2880 wrote to memory of 3416	2880	Quotation.exe	104
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105
PID 2880 wrote to memory of 1056	2880	Quotation.exe	105

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.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:2880
- 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\Quotation.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3632
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BKKZIuXFLRr.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2488
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BKKZIuXFLRr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp78C5.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2344
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  PID:3416
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1056

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
49bf8ff9934af84a40c3bd2571a472dd

SHA1
e178ecfaa3f1144e846e988a8530297d17b2aa1b

SHA256
407690ca1a86b2156ddf1c09e1d44e00b9881b3693f64006b65bd39fab10a518

SHA512
72aa019a542dc342cad12457eeca7d2f3f0a6e3dd3a13e63b995add61fe29a4c32b7d8677b636f2d1c9948d1fa96d612f92298535c749241e872c97e5fd3a6eb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ponxvwsk.50m.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp78C5.tmp

Filesize
1KB

MD5
a84f3e27070b8338a2b8dbd782aa46b3

SHA1
f82a387c384cb88d1800a3b124fd9b5f0864d71f

SHA256
c44701d771fffc9d6596df3199a0f688592375184df908662f26bcbd2716f214

SHA512
d886f3603234b8e805322c04b5dd8584f278c784b53d7e78b7e04cfd8fc9cbfbae00701165e4948e8bbee07f91d6aeb53cba2b495ce5b37b0af5d9aca4675d3b

Download Submit
memory/1056-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-117-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-116-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-115-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-113-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-112-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-111-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-110-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-109-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-108-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-107-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-106-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-114-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-60-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-57-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-51-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-53-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/1056-50-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/2488-26-0x0000000005C90000-0x0000000005FE4000-memory.dmp

Filesize
3.3MB

Download
memory/2488-21-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2488-49-0x0000000006310000-0x000000000635C000-memory.dmp

Filesize
304KB

Download
memory/2488-61-0x0000000006830000-0x0000000006862000-memory.dmp

Filesize
200KB

Download
memory/2488-48-0x0000000006260000-0x000000000627E000-memory.dmp

Filesize
120KB

Download
memory/2488-73-0x0000000007230000-0x00000000072D3000-memory.dmp

Filesize
652KB

Download
memory/2488-28-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2488-72-0x0000000006810000-0x000000000682E000-memory.dmp

Filesize
120KB

Download
memory/2488-23-0x0000000005AB0000-0x0000000005B16000-memory.dmp

Filesize
408KB

Download
memory/2488-24-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/2488-25-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2488-95-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2488-62-0x0000000070290000-0x00000000702DC000-memory.dmp

Filesize
304KB

Download
memory/2488-75-0x0000000007580000-0x000000000759A000-memory.dmp

Filesize
104KB

Download
memory/2488-74-0x0000000007BD0000-0x000000000824A000-memory.dmp

Filesize
6.5MB

Download
memory/2488-76-0x0000000007600000-0x000000000760A000-memory.dmp

Filesize
40KB

Download
memory/2488-77-0x0000000007800000-0x0000000007896000-memory.dmp

Filesize
600KB

Download
memory/2488-78-0x0000000007780000-0x0000000007791000-memory.dmp

Filesize
68KB

Download
memory/2488-79-0x00000000077B0000-0x00000000077BE000-memory.dmp

Filesize
56KB

Download
memory/2488-92-0x00000000078A0000-0x00000000078A8000-memory.dmp

Filesize
32KB

Download
memory/2488-90-0x00000000077C0000-0x00000000077D4000-memory.dmp

Filesize
80KB

Download
memory/2488-91-0x00000000078C0000-0x00000000078DA000-memory.dmp

Filesize
104KB

Download
memory/2880-11-0x0000000008090000-0x0000000008152000-memory.dmp

Filesize
776KB

Download
memory/2880-10-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-7-0x00000000058D0000-0x00000000058E8000-memory.dmp

Filesize
96KB

Download
memory/2880-1-0x0000000000980000-0x0000000000A72000-memory.dmp

Filesize
968KB

Download
memory/2880-8-0x0000000005950000-0x000000000596E000-memory.dmp

Filesize
120KB

Download
memory/2880-9-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/2880-3-0x00000000054A0000-0x0000000005532000-memory.dmp

Filesize
584KB

Download
memory/2880-5-0x0000000005480000-0x000000000548A000-memory.dmp

Filesize
40KB

Download
memory/2880-4-0x0000000005540000-0x00000000055B6000-memory.dmp

Filesize
472KB

Download
memory/2880-55-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-6-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2880-2-0x0000000005970000-0x0000000005F14000-memory.dmp

Filesize
5.6MB

Download
memory/2880-12-0x000000000A870000-0x000000000A90C000-memory.dmp

Filesize
624KB

Download
memory/2880-0-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/3632-27-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/3632-80-0x0000000070290000-0x00000000702DC000-memory.dmp

Filesize
304KB

Download
memory/3632-17-0x00000000022A0000-0x00000000022D6000-memory.dmp

Filesize
216KB

Download
memory/3632-18-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/3632-22-0x0000000004C00000-0x0000000004C22000-memory.dmp

Filesize
136KB

Download
memory/3632-99-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/3632-19-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/3632-20-0x0000000004D70000-0x0000000005398000-memory.dmp

Filesize
6.2MB

Download