remcos | 6d8192c01d191baa76250cf31aceba5ebf250db393a2fd09f9c5ea4a863765c7

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 10:39

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General

Target

Request for Quotation.exe
Size

893KB
MD5

e057087c0fe5dafd5123c6a25c183af3
SHA1

e2a42baf90b09e6dfcb903fd393aca21260b8176
SHA256

6d8192c01d191baa76250cf31aceba5ebf250db393a2fd09f9c5ea4a863765c7
SHA512

de8634aa07b3cc7bf75b81f6297a09f663d8ec7b2b9e192f2a8fa393bad6e3057c891e479d93d35b4ecde2461d9b590d56236ca93d1bf2bbdeaf1a799974f688
SSDEEP

24576:GL4bjmbWSLfTQOoEurziT0WcbJnFvJFxNJA:ro7kziQWcbJnFvJFfJA

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

eadzagba1.duckdns.org:4877

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-X3UMUO
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
4160	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	Request for Quotation.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4672 set thread context of 2244	4672	Request for Quotation.exe	97

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	Request for Quotation.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	Request for 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
1560	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4160	powershell.exe
4160	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4160	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4672 wrote to memory of 4160	4672	Request for Quotation.exe	93
PID 4672 wrote to memory of 4160	4672	Request for Quotation.exe	93
PID 4672 wrote to memory of 4160	4672	Request for Quotation.exe	93
PID 4672 wrote to memory of 1560	4672	Request for Quotation.exe	95
PID 4672 wrote to memory of 1560	4672	Request for Quotation.exe	95
PID 4672 wrote to memory of 1560	4672	Request for Quotation.exe	95
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97
PID 4672 wrote to memory of 2244	4672	Request for Quotation.exe	97

C:\Users\Admin\AppData\Local\Temp\Request for Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Request for Quotation.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mGIyPc.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4160
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mGIyPc" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9385.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1560
- C:\Users\Admin\AppData\Local\Temp\Request for Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Request for Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2244

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\Temp\__PSScriptPolicyTest_hqq1yyxa.zf1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9385.tmp

Filesize
1KB

MD5
09b33ad9d362acaa0ee7f590b48701de

SHA1
53210ee3bf0d9218857fbb691b65c80f2e9b52b0

SHA256
03d8e33bb02ec431175cd19ee89ab4542113f5e1fa416287c7c0eca2ed2a22b2

SHA512
4ee85821973c1aa80f2e757c0ab42df73dbca6240b1cf23c31f8743cad62bda3fb2e4065ffd4007c5e61f9b8d80afa3d020553b5dd0a5b504bedfa1b396d1195

Download Submit
memory/2244-71-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-78-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-77-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-76-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-75-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-74-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-73-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-81-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-79-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-70-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-20-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-26-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-69-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2244-80-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4160-41-0x0000000006550000-0x000000000656E000-memory.dmp

Filesize
120KB

Download
memory/4160-61-0x0000000007AB0000-0x0000000007ABE000-memory.dmp

Filesize
56KB

Download
memory/4160-15-0x0000000002C30000-0x0000000002C66000-memory.dmp

Filesize
216KB

Download
memory/4160-33-0x0000000005DD0000-0x0000000005DF2000-memory.dmp

Filesize
136KB

Download
memory/4160-35-0x0000000005EE0000-0x0000000005F46000-memory.dmp

Filesize
408KB

Download
memory/4160-34-0x0000000005E70000-0x0000000005ED6000-memory.dmp

Filesize
408KB

Download
memory/4160-36-0x0000000005F50000-0x00000000062A4000-memory.dmp

Filesize
3.3MB

Download
memory/4160-16-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4160-19-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4160-42-0x0000000006580000-0x00000000065CC000-memory.dmp

Filesize
304KB

Download
memory/4160-43-0x0000000006B40000-0x0000000006B72000-memory.dmp

Filesize
200KB

Download
memory/4160-44-0x0000000070D60000-0x0000000070DAC000-memory.dmp

Filesize
304KB

Download
memory/4160-54-0x0000000006B00000-0x0000000006B1E000-memory.dmp

Filesize
120KB

Download
memory/4160-55-0x0000000007580000-0x0000000007623000-memory.dmp

Filesize
652KB

Download
memory/4160-56-0x0000000007EC0000-0x000000000853A000-memory.dmp

Filesize
6.5MB

Download
memory/4160-57-0x0000000007880000-0x000000000789A000-memory.dmp

Filesize
104KB

Download
memory/4160-58-0x00000000078F0000-0x00000000078FA000-memory.dmp

Filesize
40KB

Download
memory/4160-59-0x0000000007B00000-0x0000000007B96000-memory.dmp

Filesize
600KB

Download
memory/4160-60-0x0000000007A80000-0x0000000007A91000-memory.dmp

Filesize
68KB

Download
memory/4160-18-0x0000000005750000-0x0000000005D78000-memory.dmp

Filesize
6.2MB

Download
memory/4160-62-0x0000000007AC0000-0x0000000007AD4000-memory.dmp

Filesize
80KB

Download
memory/4160-63-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

Filesize
104KB

Download
memory/4160-64-0x0000000007BA0000-0x0000000007BA8000-memory.dmp

Filesize
32KB

Download
memory/4160-67-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4160-22-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4672-6-0x00000000056B0000-0x00000000056C0000-memory.dmp

Filesize
64KB

Download
memory/4672-7-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/4672-5-0x0000000005330000-0x000000000533A000-memory.dmp

Filesize
40KB

Download
memory/4672-4-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4672-3-0x00000000053B0000-0x0000000005442000-memory.dmp

Filesize
584KB

Download
memory/4672-2-0x00000000058C0000-0x0000000005E64000-memory.dmp

Filesize
5.6MB

Download
memory/4672-1-0x0000000000890000-0x0000000000976000-memory.dmp

Filesize
920KB

Download
memory/4672-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/4672-10-0x0000000009120000-0x00000000091BC000-memory.dmp

Filesize
624KB

Download
memory/4672-8-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/4672-9-0x0000000006B40000-0x0000000006C00000-memory.dmp

Filesize
768KB

Download
memory/4672-27-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download