remcos | 79732670234d723da588faab41efbaeeb0708fdd15fa283a7322b91963d41b6e

General

Target

Quotation.exe
Size

899KB
MD5

9704ccf025eb5b76cf9485718a5ae9ba
SHA1

1a50054fb88f8667ea346a9cfd4ffa501ff491fe
SHA256

1c022ec2400c0c5197aa32cef3182a09a13213dedfe1db71fc18c6d399571ed9
SHA512

02a54924f0f6de0b7df557fc0606f372fb52d70dc950e843195aacbf6b1f12f2a0d0a879be79c5c2da4b2bd9a159a0948b1a3dc594ba9227a345cf792c55e038
SSDEEP

12288:qEXIarzS1y2y5bQqTIl7ahRvVDAJU+Ib9/xyDszk1rCMNcEBVhj2MVOEjctICdch:SaaBGvlh1+fIbTZklf32MsactInKkE

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

spacesave.duckdns.org:14645

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-RLABK3
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
2644	powershell.exe
2656	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2824 set thread context of 2572	2824	Quotation.exe	37

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quotation.exe
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

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
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2644	powershell.exe
2656	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	2656	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2824 wrote to memory of 2644	2824	Quotation.exe	31
PID 2824 wrote to memory of 2644	2824	Quotation.exe	31
PID 2824 wrote to memory of 2644	2824	Quotation.exe	31
PID 2824 wrote to memory of 2644	2824	Quotation.exe	31
PID 2824 wrote to memory of 2656	2824	Quotation.exe	33
PID 2824 wrote to memory of 2656	2824	Quotation.exe	33
PID 2824 wrote to memory of 2656	2824	Quotation.exe	33
PID 2824 wrote to memory of 2656	2824	Quotation.exe	33
PID 2824 wrote to memory of 2752	2824	Quotation.exe	34
PID 2824 wrote to memory of 2752	2824	Quotation.exe	34
PID 2824 wrote to memory of 2752	2824	Quotation.exe	34
PID 2824 wrote to memory of 2752	2824	Quotation.exe	34
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37
PID 2824 wrote to memory of 2572	2824	Quotation.exe	37

C:\Users\Admin\AppData\Local\Temp\Quotation.exe
"C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2824
- 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:2644
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wCnzGs.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2656
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wCnzGs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE05.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2752
- C:\Users\Admin\AppData\Local\Temp\Quotation.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotation.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE05.tmp

Filesize
1KB

MD5
58bba3053fac4aabee2c86dbd96f3cca

SHA1
2140288fb57a556efb2320e782f4790c36d42579

SHA256
963ed0ab08527b2489ba6997d5314c224d2b9162be1f6b8d711f206ba9ec78d4

SHA512
d9cd1539e2cd0717654712b8e7972594df117fa0c3ae022484ebfbea6f888643dee624f55b9116e9ba9ec5f2011ac9d938a09a669ec018f795f023408d5f8a66

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\E0OUYMWIL1N51FMQS5V6.temp

Filesize
7KB

MD5
50e1a888eebbca54072d99d7a80a5f2f

SHA1
c3e19dd6e420c89130e4adaeb30c407c09d892f5

SHA256
233289c66337d0d1613e45b2bea5518a6ecf831ca8d449833398dac250849bf1

SHA512
05cf6bb01563b57eedd844b94866dc355287fd892fa59b4fe815afd8b9d4c4063049747555d5c7bc0f5adac656e0bbdf19ab0c4717b09451a44a3be0e71dd8b4

Download Submit
memory/2572-25-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-19-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-53-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-24-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-21-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-36-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2572-33-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-31-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-29-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-27-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-48-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-49-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-40-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-41-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-42-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-43-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-46-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2572-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2824-39-0x0000000074E60000-0x000000007554E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-3-0x0000000000550000-0x0000000000560000-memory.dmp

Filesize
64KB

Download
memory/2824-6-0x0000000005E20000-0x0000000005EE0000-memory.dmp

Filesize
768KB

Download
memory/2824-1-0x0000000000A80000-0x0000000000B66000-memory.dmp

Filesize
920KB

Download
memory/2824-2-0x0000000074E60000-0x000000007554E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-0-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

Filesize
4KB

Download
memory/2824-5-0x0000000074E60000-0x000000007554E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-4-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads